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339 items tagged "classic"
Related tags:
proof of concept [+],
power [+],
game [+],
commodore 64 [+],
camera [+],
vintage [+],
video [+],
real networks [+],
real [+],
project [+],
based buffer overflow [+],
logic [+],
led [+],
keyboard [+],
homebrew [+],
firmware [+],
diy [+],
chris [+],
andrew [+],
tutorial [+],
resistors [+],
pinball [+],
controller [+],
buffer [+],
bit computer [+],
bit [+],
analog [+],
vulnerability [+],
voltage [+],
usb [+],
supply [+],
sql injection [+],
site [+],
simple [+],
router [+],
radio [+],
programmable gate array [+],
pro versions [+],
ogg file [+],
motor [+],
matt [+],
matrix [+],
machine [+],
instructable [+],
inclusion [+],
homebrew computer [+],
hack [+],
frank [+],
fpga [+],
forgery [+],
file [+],
field programmable gate array [+],
ezpub [+],
exploits [+],
equipment [+],
denial of service [+],
crt [+],
cross site scripting [+],
cross [+],
computing [+],
commodore [+],
clone [+],
classic asp [+],
chris fenton [+],
cauposhop [+],
card [+],
car [+],
calculator [+],
build [+],
buffer overflow exploit [+],
board [+],
bluetooth [+],
basic interpreter [+],
atari [+],
asp cms [+],
apple [+],
ape file [+],
555 timers [+],
zero [+],
writeup [+],
wii [+],
whitepaper [+],
tube [+],
tiny [+],
time [+],
tim [+],
tesla coils [+],
terminal [+],
tape [+],
synthesizer [+],
sudoku [+],
single board computer [+],
simpler time [+],
sid player [+],
sid [+],
sensors [+],
scott [+],
school [+],
scanner [+],
retro [+],
relay [+],
reader [+],
raison d [+],
processor [+],
post [+],
point [+],
patrick [+],
old school [+],
old hardware [+],
motorola 6809 [+],
model [+],
mike [+],
mifare [+],
microcontroller [+],
memory [+],
markus [+],
mains power [+],
mad scientist [+],
lot [+],
logic chips [+],
logic chip [+],
loading programs [+],
link [+],
linear voltage [+],
life [+],
leds [+],
led matrix [+],
julian skidmore [+],
julian [+],
john sarik [+],
jeri ellsworth [+],
ipad [+],
installment [+],
home [+],
high voltage [+],
heathkit [+],
hacker [+],
guide [+],
george [+],
fignition [+],
eric [+],
electromechanical [+],
electricity [+],
educational computer [+],
dslr [+],
dockstar [+],
display [+],
dino segovis [+],
dino [+],
design [+],
debraj [+],
cray 1 [+],
cooking [+],
controlling [+],
contest [+],
circuit [+],
chip [+],
buffer overflow [+],
basic [+],
atari jaguar [+],
arduino [+],
arcade cabinet [+],
arcade [+],
apple usb keyboard [+],
andrea [+],
analog phones [+],
altair [+],
Hardware [+],
1kb [+],
computer [+],
hacks [+],
zusie [+],
zork [+],
zip file [+],
zip [+],
z80 cpu [+],
z80 [+],
youth [+],
yesterday [+],
year [+],
xilinx spartan [+],
xenon lamp [+],
xenon arc lamp [+],
xenon [+],
work [+],
wireless modems [+],
wireless keyboard [+],
wireless controllers [+],
whoopjohn [+],
wheel [+],
whac a mole game [+],
whac a mole [+],
webcam [+],
way communications [+],
water heater [+],
walkie talkies [+],
voltage regulator [+],
voltage projects [+],
voltage electricity [+],
voltage divider [+],
voip [+],
visualizing [+],
vision device [+],
virtual credit card [+],
vintage hardware [+],
vintage arcade [+],
vincent [+],
vince [+],
viewfinder [+],
video card [+],
victrola [+],
vic [+],
vector graphics [+],
vector [+],
vcr head [+],
variable power supply [+],
vacuum tubes [+],
vacuum tube [+],
v ac [+],
urpo [+],
urge [+],
update [+],
universal turing machine [+],
universal [+],
understatement [+],
ulysses [+],
ultimate calculator [+],
typewriter [+],
type joke [+],
tyler [+],
twittertape [+],
turningpoint [+],
turning [+],
turing [+],
turbografx [+],
tunafish sandwich [+],
tube tutorial [+],
tube sockets [+],
ttl logic chips [+],
ttl [+],
tsa [+],
trs [+],
travis goodspeed [+],
travers [+],
transmitter [+],
transmission lines [+],
transfer speeds [+],
trakr [+],
trainer [+],
toy [+],
touchpad [+],
touch sensor [+],
tone matrix [+],
tone [+],
tom [+],
tins [+],
tin cans [+],
tin [+],
timer [+],
timelapse [+],
time charm [+],
time and money [+],
tim hunkin [+],
tilted axis [+],
tilt sensor [+],
ticker tape machine [+],
ti 83 calculator [+],
thunderous roar [+],
thumbwheel switches [+],
thumb drive [+],
thomas [+],
texting [+],
texas [+],
tetris [+],
tester [+],
tesla [+],
telephone subscribers [+],
telephone intercom system [+],
teardown [+],
tdd [+],
tape delay [+],
tandy color computer [+],
t pay [+],
system [+],
synth [+],
synology [+],
surplus [+],
sures [+],
supercomputer [+],
super nintendo [+],
subtracting numbers [+],
substitution [+],
stripboard [+],
strangeness [+],
stomp [+],
stock tickers [+],
stock ticker [+],
stock condition [+],
stock [+],
sterling engine [+],
stereo receiver [+],
stereo equipment [+],
stereo [+],
stepper motor [+],
stepper [+],
step back in time [+],
steampunk keyboard [+],
steampunk [+],
static art [+],
star trek captain [+],
spy [+],
spi [+],
speech synthesizer [+],
speech [+],
specimens [+],
special tools [+],
special effects [+],
speaker setup [+],
space shuttle discovery [+],
source [+],
soundtrack recordings [+],
soundtrack [+],
sound capabilities [+],
sound [+],
someone [+],
solid state tesla coil [+],
solenoids [+],
solderless breadboard [+],
solder [+],
solar panels [+],
solace [+],
software radio [+],
software interface [+],
snes [+],
snap [+],
smd [+],
smartie [+],
slot model [+],
slider [+],
slide [+],
slew [+],
sized music [+],
sitting on a shelf [+],
simple computers [+],
simon [+],
signals [+],
sifting through [+],
shutter release [+],
show [+],
short attention span [+],
shoehorning [+],
sha [+],
servo motor control [+],
servo controller [+],
servo [+],
server [+],
serial [+],
sensor system [+],
segstick [+],
segment [+],
sega genesis [+],
sega [+],
second life [+],
sebastian thrun [+],
search [+],
sd card [+],
sculptural [+],
scott harden [+],
score reels [+],
score [+],
schematics [+],
scanner glass [+],
sarnoff [+],
sardines in tomato sauce [+],
s waves [+],
roundup [+],
rotta [+],
rotation [+],
rotary phone [+],
rom [+],
robotics [+],
robotic car [+],
robot controller [+],
robot [+],
robber barons [+],
rob flickenger [+],
rob [+],
roar [+],
road [+],
ring [+],
right off the bat [+],
right angle [+],
richard [+],
ribbon controller [+],
rf device [+],
revive [+],
reverse engineer [+],
retrofitting [+],
retro systems [+],
resurrecting [+],
restoration [+],
response card [+],
response [+],
respect [+],
resistor network [+],
resistor [+],
reproduction [+],
refurbishment [+],
redpower [+],
recruit [+],
recreating [+],
recovering data [+],
record [+],
recession [+],
rear admiral grace hopper [+],
reality game [+],
real time clock [+],
reactor [+],
rapid attack [+],
rajendra [+],
radio restoration [+],
quite some time [+],
quinn dunki [+],
quick [+],
quakepocalypse [+],
quadruped [+],
qnap [+],
punch tape [+],
punch cards [+],
punch card [+],
punch [+],
pumpkin carving contest [+],
prototyping [+],
protection circuits [+],
protection [+],
projector [+],
project goal [+],
programming space [+],
professional tape [+],
process [+],
printers [+],
printer [+],
prince of persia game [+],
prince of persia [+],
prince [+],
pretty pictures [+],
presentation [+],
preamp [+],
practical joke [+],
powerpoint [+],
powering [+],
power sockets [+],
power consumption [+],
power brick [+],
power amplifier [+],
pov [+],
portable [+],
port [+],
popular electronics magazine [+],
pong [+],
polaroid land camera [+],
polaroid [+],
point and shoot cameras [+],
pneumatic tubes [+],
playstation [+],
playback functions [+],
play [+],
place [+],
pinhole camera [+],
pinhole [+],
pinball machines [+],
pinball machine [+],
piece [+],
picture [+],
pic microcontrollers [+],
pic micro controllers [+],
pic micro controller [+],
pic 18f452 [+],
pic [+],
photophone [+],
photography [+],
phosphor bronze [+],
phonograph [+],
phone [+],
peter norvig [+],
perspective [+],
person [+],
persistent memory [+],
persistence of vision [+],
persia [+],
performance interface [+],
perfboard [+],
pendulum [+],
penchant [+],
pdp 11 [+],
pc engine [+],
paul [+],
pat [+],
part [+],
parallel inputs [+],
paper airplane [+],
paper [+],
panaplex [+],
pain [+],
overhead [+],
overhaul [+],
overflow [+],
oscilloscope [+],
oric atmos [+],
oric [+],
order [+],
optical illusions [+],
optical film [+],
openwrt [+],
old timers [+],
old rotary phone [+],
old radios [+],
old macs [+],
old hat [+],
old computer [+],
old camera [+],
oft [+],
obsolete technology [+],
nunchuck [+],
numitron [+],
null byte [+],
null [+],
npn transistor [+],
novel fashion [+],
no doubt [+],
nixies [+],
nixie tubes [+],
nixie tube [+],
nixie [+],
nintendo games [+],
ninja turtles [+],
niklas roy [+],
new aircraft [+],
network attached storage devices [+],
network attached storage [+],
neo geo arcade [+],
neo [+],
necessary time [+],
nanosecond [+],
nanocomputer [+],
naked [+],
music synthesizer [+],
music [+],
msx computer [+],
movie buff [+],
mouse [+],
motor cortex [+],
morse code trainer [+],
morse [+],
monotribe [+],
monitoring [+],
model ms [+],
mode power supply [+],
mod [+],
mit [+],
miroslav [+],
minitel terminal [+],
minitel [+],
minimalistic [+],
minimal tools [+],
minecraft [+],
midi devices [+],
midi device [+],
midi [+],
mid 90s [+],
microcomputer [+],
micro projects [+],
mice and men [+],
memory hardware [+],
mediaplayer [+],
mechanical keyboard [+],
mechanical key [+],
mechanical engineers [+],
mechanical [+],
measure earth [+],
mcus [+],
matthew arnoff [+],
matt sarnoff [+],
matrix displays [+],
mathieu [+],
math [+],
markup language [+],
mario [+],
map [+],
mame cabinet [+],
maker [+],
magnetic stripe reader [+],
magnetic ring [+],
magnetic levitator [+],
magic 8 ball [+],
macro shots [+],
macintosh liberation army [+],
mac iici [+],
mac [+],
m. eric carr [+],
m. after [+],
luxurious leather [+],
lunar lander game [+],
luigi [+],
love affair [+],
love [+],
louisville [+],
logisim [+],
logic computer [+],
lofty goals [+],
loading [+],
load [+],
lm386 [+],
lm358 [+],
little chance [+],
little bit [+],
linus [+],
lightning [+],
lightbox [+],
levitator [+],
levers [+],
lens [+],
legged animal [+],
larson scanner [+],
laptop power [+],
land [+],
lan [+],
lamp socket [+],
lamp [+],
kyle evans [+],
korg [+],
konrad zuse [+],
knock off [+],
kind [+],
keycaps [+],
keyboards [+],
keyboard light [+],
kenneth finnegan [+],
kenneth [+],
ken [+],
k rom [+],
k ram [+],
junk store [+],
junk box [+],
junk [+],
jtag [+],
jordan [+],
jon [+],
john zitterkopf [+],
john ownby [+],
john carr [+],
john [+],
jog [+],
jim [+],
jeri [+],
jean [+],
jar [+],
james [+],
jam jar [+],
jake [+],
jaguar cd [+],
jaguar [+],
jacob [+],
jack [+],
j. peterson [+],
irvine [+],
ir communications [+],
iphone [+],
interface [+],
intercom [+],
intensive task [+],
instructables [+],
ink cartridges [+],
ink [+],
initial view [+],
infrared technology [+],
infinite supply [+],
infiltrator [+],
industrial technology [+],
inductor [+],
inch floppies [+],
incandescent bulbs [+],
impromptu [+],
im me [+],
igor [+],
ibm pcjr [+],
hubris [+],
house [+],
hope [+],
homemade [+],
homecut [+],
home cinema [+],
hole components [+],
hijacking [+],
high school teacher [+],
high frequency [+],
high [+],
help [+],
hear [+],
heap [+],
headache [+],
head [+],
harry porter [+],
hardware terminal [+],
hardware state [+],
handy tool [+],
handy techniques [+],
hammers strike [+],
hammer and nails [+],
hammer [+],
hamfest [+],
haman [+],
halloween [+],
half a chance [+],
hacking [+],
hacked [+],
hackaday [+],
h. p. friedrichs [+],
gyroscopes [+],
guts [+],
guido socher [+],
gregory [+],
greg [+],
great primer [+],
grass on the other side [+],
graphic lcd [+],
graffiti art [+],
graffiti [+],
grace hopper [+],
good answer [+],
goertzel algorithm [+],
goertzel [+],
god [+],
gml [+],
globe [+],
glcd [+],
girl tech [+],
gigantic [+],
george graves [+],
geoff graham [+],
geo [+],
genesis [+],
generation chip [+],
gate [+],
gas plasma [+],
garth wilson [+],
garnet hertz [+],
game source code [+],
game play [+],
game controllers [+],
future project [+],
futaba radio [+],
fusion reactors [+],
fusion reactor [+],
fusion [+],
full blast [+],
full adder [+],
frustration [+],
frequent reader [+],
french telephone [+],
fredrik andersson [+],
frame [+],
fpslic [+],
fpga board [+],
forum user [+],
forum member [+],
forgotten gods [+],
followup [+],
floppy [+],
floppies [+],
flood lamps [+],
flat panel tvs [+],
flashing lights [+],
flash circuit [+],
flash [+],
first glance [+],
firmware upgrade [+],
firmware update [+],
fine pitch [+],
film [+],
filer [+],
fiber optic technology [+],
few moments [+],
fellow geeks [+],
felipe la [+],
feed horns [+],
fear and respect [+],
fear [+],
fancy touch [+],
fancy schmancy [+],
family radio services [+],
family [+],
famicom [+],
faithful reproduction [+],
fabulous [+],
expansion slot [+],
exercise machines [+],
exercise bike [+],
exercise [+],
exchange circuit [+],
evil [+],
everyone [+],
everyday devices [+],
ethernet [+],
eric seifert [+],
eric carr [+],
equipment friends [+],
epson printer [+],
epod [+],
engineerguy [+],
endeavours [+],
emulating [+],
emotiphone [+],
ellsworth [+],
electronics kit [+],
electronic toy [+],
electronic circuits [+],
electronic band [+],
electromechanical relays [+],
electromagnet [+],
electrical input [+],
electric heater [+],
electric golf cart [+],
electret microphone [+],
efpga [+],
eevblog [+],
ebay [+],
easy [+],
earthquake detector [+],
earthquake [+],
earth [+],
early warning system [+],
dummy load [+],
dumb terminals [+],
dual axis [+],
dtmf tones [+],
dtmf detector [+],
dtmf [+],
driver circuits [+],
drawing [+],
dos vulnerability [+],
dongles [+],
dongle [+],
dog collar [+],
dog [+],
dll [+],
disposable cameras [+],
displaying graphics [+],
displaying [+],
disk image [+],
disk hardware [+],
disk [+],
discrete components [+],
directory [+],
direct conversion receiver [+],
diodes [+],
diode [+],
digits [+],
digital sound recorder [+],
digital projector [+],
digital picture frame [+],
digital multimeter [+],
digital logic simulator [+],
digital camera [+],
digit numbers [+],
digit [+],
didn [+],
dick [+],
dewalt cordless drills [+],
dev [+],
detector [+],
deskthority [+],
demo production [+],
delay [+],
dedicated [+],
decision [+],
decade counter [+],
dec vt100 terminal [+],
deb [+],
dead [+],
day [+],
daniel [+],
dangerousprototypes [+],
dan roe [+],
dan [+],
custom midi [+],
custom libraries [+],
current technologies [+],
curious one [+],
cruising [+],
credit card terminal [+],
credit [+],
creating [+],
cray supercomputer [+],
cray software [+],
crate [+],
crapshoot [+],
courtesy [+],
couldn [+],
costas [+],
cool thing [+],
converting [+],
controller adapter [+],
control [+],
contact [+],
consumption [+],
concept demo [+],
concentric rings [+],
computer geeks [+],
computer buffs [+],
compact fluorescent bulb [+],
commodore pet [+],
commodore epod [+],
commodore computers [+],
comments section [+],
colorful animation [+],
colored shadows [+],
collin cunningham [+],
collin [+],
collar [+],
coil [+],
code [+],
coco [+],
cnc machine [+],
cnc [+],
cmos [+],
clpd [+],
clocks [+],
clock forum [+],
clock circuit [+],
clock [+],
clicker [+],
clever implementation [+],
clever combination [+],
classical [+],
classic arcade machines [+],
class [+],
clapper [+],
clap clap [+],
clap [+],
circuit simulation software [+],
christopher [+],
christmas edition [+],
chip computer [+],
childhood [+],
cheap transportation [+],
chaser [+],
charm [+],
charger [+],
centimeter [+],
cemetech [+],
cell phone charger [+],
ccd works [+],
ccd [+],
cat whisker [+],
casting votes [+],
cassette decks [+],
cassette [+],
cartridge [+],
carousel slide projector [+],
carol chen [+],
carol [+],
carl [+],
capacitors [+],
capacitive [+],
canon slr [+],
canon [+],
camera lenses [+],
camera flashes [+],
camera equipment [+],
camcorder [+],
calculon [+],
calculators [+],
calculator version [+],
calc [+],
cabinet [+],
c64 games [+],
bulbdial [+],
building your own computer [+],
building a computer [+],
building [+],
builder hardware [+],
buda [+],
brush [+],
bruce [+],
bronze metal [+],
brain activity [+],
brain [+],
box [+],
boston dynamics [+],
boston [+],
booting [+],
boot [+],
boisy [+],
bob alexander [+],
bob [+],
board electronics [+],
blue smoke [+],
blood flow [+],
blender [+],
bit computers [+],
bill [+],
bidding [+],
best solution [+],
best resources [+],
best laid plans of mice and men [+],
bending [+],
bench [+],
ben krasnow [+],
behringer [+],
beginner [+],
beer cans [+],
beer [+],
beeper [+],
beaglebone [+],
bbc [+],
bay area [+],
baud modem [+],
bat signal [+],
based computer [+],
bare metal [+],
barcode [+],
barackobama [+],
banner image [+],
bandwidth limitations [+],
band [+],
bamf [+],
ball [+],
back [+],
bach [+],
awe [+],
available resources [+],
automation tool [+],
autoloader [+],
auto power [+],
auto [+],
augmented [+],
audio signal [+],
audio amplifier [+],
atx power supply [+],
attempt [+],
atmega8 [+],
atari computer [+],
artistic skills [+],
art presentations [+],
art [+],
array implementation [+],
army experiment [+],
army [+],
argon [+],
arcade machine [+],
apple iic [+],
apple ii [+],
apple computers [+],
antique [+],
anniversary [+],
animating [+],
angus [+],
andrew rossignol [+],
andrew jenner [+],
andrew filer [+],
ancient [+],
analysis [+],
ammo [+],
am demodulator [+],
aluminum foil [+],
aluminum [+],
altair 8800 [+],
alpha [+],
all the rage [+],
alexy [+],
alexander graham bell [+],
alex [+],
alan [+],
aircraft [+],
adrian [+],
admrial [+],
admiral grace hopper [+],
admiral aaron ravensdale [+],
adding machine [+],
adder [+],
adapter cable [+],
adapter [+],
adam [+],
acrylic case [+],
accurate assessment [+],
accelerometers [+],
ac signal [+],
aaron [+],
a banker [+],
Wireless [+],
8mm projector [+],
7 segment displays [+],
68k macintosh [+],
6 wheels [+],
555 timer projects [+],
27c256 [+],
20 000 leagues under the sea [+],
20 000 leagues [+],
1970s [+],
029 keypunch [+],
player [+],
media [+],
netzip [+],
media player classic [+],
buffer overflow vulnerability [+],
zephyreye,
z80 emulator,
z80 assembly,
x band,
world andy,
working,
word association,
wireless motion,
wireless data transmission,
wireless connectivity,
wikipedia,
whirlygig,
way,
warszawa,
wafers,
voltage and amperage,
vikash,
video projector,
video object,
video generation,
vice,
vfd,
vegetable gardener,
valentin,
vacuum,
v pal,
use,
usbkey,
usb connection,
type,
twitter,
true randomness,
travis,
transistor,
traffic,
touch,
toner,
tipped pen,
tiny power,
tin foil,
time reading,
time delay,
ticker,
ti 84 graphing calculator,
tesla coil,
terminal connection,
television,
teletype machine,
teletype,
t shirt screen printing,
system programmer,
sync,
switch,
swipe,
swapping coins,
stunning conclusion,
stick,
steven levy,
stepper motors,
steorn orbo,
steorn,
spinning,
spectrum analyzer,
spectrum,
specific project,
sparkfun,
sound amplifier,
solenoid,
soil,
snega,
slides,
sketch,
sink,
simple solution,
simon inns,
serial controller,
serial connection,
segment display,
screen,
scope,
scientists,
scart connector,
scart,
sam fisher,
sam,
rossum,
ross,
robert pickering,
robb godshaw,
rob stewart,
rgb leds,
rfid tag,
rfid,
reverse,
retrospect,
resolution radar,
repurposing,
replica,
relays,
recording,
real life games,
raphael abrams,
randomness,
rail,
radio tuner,
radar imaging,
quotation mark,
pwm,
puzzle box,
puzzle,
puppet,
pulse,
proud owner,
propeller,
programmer,
production,
printed circuit boards,
print,
pre spun,
practice,
power over ethernet,
portable spectrum analyzer,
poe,
poc,
plcc,
playing games,
plaster of paris,
plaster,
pipe cap,
pink plastic,
pin headers,
pin chip,
pickup,
pic microcontroller,
piano instructor,
piano,
phasor,
peter wirasnik,
peter,
performance meters,
performance,
pencil,
peltier cooler,
pcb,
pc based usb,
pc,
pause button,
pause,
patrice,
passive components,
particulars,
paris,
oxide,
owen,
orb,
operating system,
old dominion university,
oblivion,
o clock,
noise,
nitrogen,
nintendo entertainment system,
network switch,
netbook,
nes,
necessary bits,
natural resources of australia,
nanotouch,
name,
muris,
moveable type,
motion,
motherboard,
monochrome screen,
monitor,
moisture content of soil,
moisture,
modded,
minty boost,
milling machine,
mike davey,
miguel a. vallejo,
midi piano,
mid nineties,
michael ossmann,
micah dowty,
mhz version,
mhz,
method,
meseta,
merkel,
mcdonald,
matthias hullin,
massive amounts,
mark lerman,
luis cruz,
look at the walk,
logic analyzer,
lm35 temperature sensor,
liquid nitrogen plant,
linux,
linear rail,
line,
limited capacity,
lighting,
light sensor,
lft,
levy,
led flashlight,
led color,
leader,
laser printer,
labor of love,
krasnow,
kodak dc290,
knock outs,
kilovolts,
keyboard layout,
jump,
josh,
jon beck,
job,
jason,
jaromir sukuba,
jan,
ism band,
isa connector,
isa,
intruder alarm,
intruder,
interview,
internet knowledge base,
internet browser,
internet,
intelligent battery,
intelligent,
instructor,
input devices,
input,
immobiliser,
imaging,
illuminated,
idea,
human tetris,
human interface devices,
hud,
household chemicals,
host,
home chip,
hobby,
heat,
headphone amplifier,
hardware interface,
hard drives,
hand input,
hand,
ham,
hackers,
hacker culture,
guitar pedal,
guitar effects,
guitar,
greg charvat,
graphite rod,
gps module,
goodspeed,
glue stick,
glue,
giant,
gerry,
geocache,
genearic,
gaming system,
gaming,
gamesphere,
game pad,
game boy games,
game boy cartridge,
forum thread,
foot,
flourescent tubes,
flood gates,
flood,
flickr,
flashlight,
flash chip,
finn hammer,
film leader,
feed samples,
feast your eyes,
fan community,
fan,
fabrication,
eye candy,
eye,
external hard drive,
emulator,
electronic keyboards,
electroluminescent,
electric typewriter,
durability,
drive,
dram chip,
dpac,
door,
doombox,
doom port,
doo dads,
dip switches,
dimmer,
digital calipers,
digital,
device,
department of natural resources,
department,
demo,
dell vostro,
dell mini,
degree oven,
david cook,
dave,
dale dougherty,
custom shapes,
custom pcb,
custom,
cross platform,
craig bishop,
counter,
cortex,
copper pipe,
copper,
conveyor belt,
conversion,
controller board,
connector,
confidence,
communications protocol,
commodore 64 computer,
commercial versions,
collection,
colin merkel,
click wheel,
click,
clay polymer,
classic keys,
circuits,
chris yerga,
chip fab,
child,
cfl bulbs,
cfl,
cellphone,
cell games,
capacitor bank,
capacitor,
capabilities,
canon ae 1,
cameras,
c language,
button,
browser,
brad,
boy,
bootloader,
boost converter,
boost,
boom,
book hackers,
book,
berlin,
battery,
avr programmer,
avr chip,
avr,
automated system,
automated,
australia,
atmel chips,
atmega,
atari games,
atari 2600,
assembly skills,
assembly,
array,
apple iie,
animatronic puppets,
andy green,
analyzer,
amplifier,
aluminum heat sinks,
aluminum heat sink,
algorithm,
alessandro lambardi,
alarm system,
alarm clock,
alarm,
adjustable,
added benefit,
adam papamarcos,
aaa batteries,
ARM,
12f675
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9:01
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Hack a Day
[Christopher] piped up in our comments on a recent post about using laptop touch pads in other things, noting that he had done this on his Ultimate Calculator Version 2. What he’s done is upgraded his TI-83+ calculator to house a number of improvements and customizations. It now has a stronger RGB backlight so he [...]
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9:01
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Hack a Day
We’ll admit that we haven’t been following Minecraft like we used to; its been a while since we’ve seen something amazing in Minecraft, but [eloraam]‘s 6502 emulator (part of her RedPower Minecraft mod) takes the cake. The RedPower mod adds a lot of industrial technology to Minecraft. Pumps, solar panels, and pneumatic tubes to move [...]
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7:01
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Hack a Day
[Kilian] sent in a link to a color version of a tiny educational computer. It’s called the Quantumite and it’s designed to be a throwback to the early 80s microcomputers we all grew up on. The Quantumite is a clone of the Maximite, the tiny single board computer / BASIC interpreter designed by [Geoff Graham]. Both [...]
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14:01
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Hack a Day
When [Vince] saw a coworker give a presentation with an iPad, he thought to himself what a tremendous waste of computing resources he was witnessing; an iPad is just as powerful as an early Cray supercomputer, and displaying slides isn’t a computationally intensive task. We’re assuming [Vince]‘s train of thought went off the rails at [...]
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16:01
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Hack a Day
Inspired by a design he saw on the EEVblog, [George Graves] put together this constant current dummy load. You might need on of these if you’re testing power supplies or batteries. They pull a constant current regardless of the voltage of the supply. [George's] version extends the range of the original a little bit by [...]
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14:01
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Hack a Day
[DJ Sures], mastermind behind the EZ-B Bluetooth Robot controller, sent in a really interesting build where he controls a robot with a 1983 TRS-80 computer. The robot in question is [DJ Sures]‘ adorable WALL-E we’ve seen before. WALL-E is controlled through a Bluetooth connection to a desktop PC with the EZ-Builder hardware and software package. To get the [...]
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12:01
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Hack a Day
When [GG] was 12 years old, he was introduced to BugBooks, the wonderful ‘introduction to digital design’ books from the early 1970s. It has always been a dream of [GG] to build the TTL computer featured in the BugBooks, and now that he has the necessary time and money available to him, the Apollo181 has [...]
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10:01
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Hack a Day
[Bill] is back with another fantastic video explaining a piece of intriguing hardware. This time, he’s explaining how a CCD works. For many of us, these things are part of our daily life, but aside from the fact that they capture an image, we don’t put much thought into them. [Bill] breaks things down in [...]
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4:01
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Hack a Day
While CRT televisions fall to the wayside as more people adopt flat-panel TVs, the abundance of unused sets gives hacker/artist [Kyle Evans] an unlimited number of analog canvases on which to project his vision. He recently wrote in to share his latest creation which he dubs “de/Rastra”. The “CRT Performance Interface” as he calls it, [...]
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7:01
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Hack a Day
[Bruce] sent us another fantastic final project from the ECE4760 class at Cornell. What you see above is an array of 36 near infra red LEDs shining into this young man’s brain for the purpose of spectroscopy. Light bounces back differently based on brain activity (blood flow). For this project, they are mapping their motor [...]
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8:01
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Hack a Day
If you’ve ever thought about getting down to bare metal and building a homebrew computer from scratch [Garth Wilson] put up a great primer to the 6502, the same CPU found in Apple ][ computers, BBC Micros, Vic-20s, and the venerable Commodore 64 (a 6510 in the C64, but it's close enough). In his guide [...]
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5:01
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Hack a Day
Homecut – CNC Cutting Directory So you have a CNC machine that you use as a hobby, but would like to do some actual work on the side? Or maybe you have an idea you’d like made. Homecut is a map directory where you can maybe hook up with the right person. The Curta Mechanical [...]
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15:01
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Hack a Day
[Eiki] found himself in need of a project for his “simple machines” class. Another project had brought him in contact with some relatively cheap MEMS accelerometers and gyroscopes. He had the idea to create a simple tilt sensor based circuit that would light whatever LED was at the bottom. He’s using an Analog Devices ADXL202E accelerometer [...]
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14:01
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Hack a Day
[Bertho] sent in a great tutorial on terminating transmission lines. If you’ve ever tried to send a high frequency signal a long way down a wire, you know the problems that can crop up due to electronic strangeness. Luckily [Bertho]‘s tutorial explains just about everything, from where and when to terminate a cable and why [...]
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6:46
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Hack a Day
[Sprite_tm], a name many of you will recognize from these pages, has wasted no time in replicating the latest cool thing in a much simpler fashion. En Garde is a touch sensor that can detect up to 32 different points of contact on… whatever you use as the surface. He couldn’t sit idly by and [...]
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15:35
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Hack a Day
This is the 2nd and final part of this project. If you haven’t seen part 1 yet, jump back and check it out. Now that we have the controller box made and ready to go, we just have to build some simple stomp sensors. As I said before, I doubt this will hold anyones attention [...]
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5:01
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Hack a Day
Very rarely do we see an Instructable so complete, and so informative, that it’s a paragon of tutorials that all Instructables should aspire to. [8 Bit Spaghetti]‘s How to Build an 8-bit computer is one of those tutorials. [8 Bit Spaghetti]‘s build began on his blog. He originally planned to build a 4-bit computer but decided a [...]
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7:01
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Hack a Day
[Scott] put together a system where he can use pinball score reels as a wireless display. As you can see in the video below, the result is really neat. The sound alone makes this shoot pretty high on our “things that are cool” radar. The display required 24V AC to operate the solenoids that actually [...]
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8:01
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Hack a Day
[Dick], like most of us, likes some pretty strong light in his workshop. He’s using CFL flood lamps to save a little energy. Unfortunately, he found that they gradually become brighter instead of that instant light he was accustomed to with his previous incandescent bulbs. Not wanting to wait around for the lights to reach [...]
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15:01
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Hack a Day
Despite my atrociously short attention span, I’ve always loved pinball. Maybe it is something about all the flashing lights and clunking solenoids. Maybe it is just the simple physics at the center of it all. I’m not really sure. My kids, however, don’t share my enthusiasm. I suspect part of it is that they never [...]
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13:01
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Hack a Day
[Mike] dropped us a tip to show off a system he has built to control some power sockets based on his proximity. Initially the project started as a parallel port controlled box to switch the mains power. Then he got the idea of turning this into a little more interactive of an automation tool. He [...]
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12:02
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Hack a Day
The folks at the Louisville hackerspace LVL1 now have a fabulous piece of wall art that is also a speech synthesizer. The speech synthesizer is over two feet long and is made of nine panels of stripboard connected with right angle headers. An awesome piece of art if there ever was one. This speech synthesizer is actually 30 years [...]
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11:01
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Hack a Day
A few old timers may remember that once, long ago, computers didn’t require keyboards. The earliest personal computers such as the Altair 8800 and the server rack-sized minicomputers like the PDP-11 could be controlled with a panel filled with switches and lights, giving us the term blinkenlights. Today, most of these machines have been thrown away [...]
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13:01
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Hack a Day
The game that launched a multi-billion dollar franchise is now laid bare for your hacking pleasure. [Jordan Mechner] just posted the once-lost source code for Prince of Persia. This game was ground-breaking for its use of rotoscoping to mimic the movements of an actor (in this case it was his younger brother). Oh, and it’s [...]
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11:01
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Hack a Day
As a kid, [Boisy] cut his teeth on the TRS-80 Color Computer. It was a wonderful machine for its day, featuring a relatively powerful Motorola 6809 CPU. Although his CoCo was theoretically more powerful than its Commodore and Apple contemporaries, the graphics and sound capabilities of [Boisy]‘s first love paled in comparison to his friends 6502-based [...]
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14:14
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Hack a Day
If you own an oscilloscope, sooner or later the urge to see something other than signals on the screen will strike. Some people ignore the urge and go about their normal business while others give in, spending hours carefully crafting images, games, and more. The process is time consuming and tricky as our own [Kevin [...]
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9:01
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Hack a Day
Late last week, we saw a rather clever combination lock build that used only a single 74xx logic chip. [J. Peterson] read this post, and in a battle royale of geek one upmanship sent us a write up of the logic chip computer he built nearly 30 years ago at the University of Utah. Around 1982 or [...]
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6:06
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Hack a Day
Archiving data from old floppy disks can be a tedious process at best. Poorly labeled disks combined with slow transfer speeds put it high on the list of things we would rather not do, and it turns out that [Dweller] was of the same opinion. With an estimated 5,000 floppies in his collection, he finally decided [...]
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12:30
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Hack a Day
[Julian Skidmore] has been busy improving the Fignition, a tiny AVR-powered educational computer, to support loading programs from a cassette tape. We first saw the Fignition after the BBC decided to cover an old-school hacker dedicated to improving computer education with a simple ‘bare-metal’ computer. [Julian]‘s Fignition harkens back to the days of very simple computers [...]
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6:27
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Hack a Day
The decision to use electronics for our calculating machines has long been decided. However, that doesn’t mean that mechanical engineers didn’t put up a valiant, if ultimately futile, fight. [Dvice.com] has an interesting article comparing the calculating technology of the 1960s, such as the [Haman 505], to today’s iPad. This comparison and pictures were made [...]
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6:01
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Hack a Day
In 1992, [Arpi] didn’t have much time for Ninja Turtles, Nintendos, and other wonderful wastes of time his fellow geeks were raised on. He was busy building a scanner for his Commodore 64. Although this very impressive build could have been lost to the sands of time, he pulled his project out of the attic [...]
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11:57
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Hack a Day
During the gilded age, oil magnates, entrepreneurs, and robber barons would have a ticker tape machine in their study. This machine would print stock and commodity prices and chart these men’s assets climbing higher and higher. A lot has changed in 100 years, as now [Adam] can be kept apprised of what @KimKardashian, @BarackObama and @stephenfry ate [...]
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10:01
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Hack a Day
[Sprite_TM] wanted to challenge his VHDL skills, and there’s no more satisfying way of doing this than making something that will be playable when you’re done. He decided to try his hand at creating a vector-based CRT arcade. The distinction here is that vector-based games take control of the magnetic ring that guides the electron [...]
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6:01
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Hack a Day
[Ames]‘s father has had an old stock ticker sitting on a shelf for some time. He may have become quite listless over his spring break, because he decided connect a century-old stock ticker to his laptop. When stock tickers were in use, they were all connected to a stock ticker circuit that would broadcast stock prices [...]
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15:01
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Hack a Day
We try to stick to the 0805 parts because they’re still big enough to solder by hand. But [Scott] shows us that it doesn’t take too many special tools to reflow fine-pitch components at home. In this case he’s using 0402 resistors, a footprint that we consider functionally impossible to solder using an iron. The two parts [...]
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13:01
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Hack a Day
Next time you’re making yourself a tunafish sandwich, try to figure out how to build a Stirling engine from the leftovers (translated). If you can pull it off as well as [Killerlot] did we’d say you’ve earned your hacker badge. The can used in this project was actually sardines in tomato sauce, but the former contents are moot. [...]
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7:01
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Hack a Day
A while back, [Matt] bought a few 8051 MCUs and tucked them away for a future project. He just found these fabulous little chips in a component drawer and decided it was time to figure these guys out. Eventually, [Matt] stumbled across this awesome resource for 8051 programming. The 8051 featured a still reasonably respectable 4k of [...]
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9:01
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Hack a Day
A cool little project came our way, which we thought might be of interest to some of you vintage computer buffs. [Joerg Hoppe] wrote in to share a DEC VT100 terminal he resurrected in a novel fashion. His “DECBox” system was created with a Beaglebone, which he uses to run a wide array of PDP11/VAX [...]
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15:24
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Hack a Day
We’d guess that you don’t have a TRS-80 Model 100 computer sitting around. But we’ve heard that the decades-old hardware is built like a tank so if you search around you can probably get your hands on a working unit. The Model 100 boasted some nice features, one of which was a 300 baud modem [...]
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12:18
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Hack a Day
Some of the pinball machines which [Jeri Ellsworth] has restored have ended up in the break room at her work. We’re sure her coworkers are thankful for this, but sometimes they forget to turn off the power to the machines, and letting them run constantly means more frequent servicing will be necessary. She set out [...]
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9:01
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Hack a Day
We’re so glad to have run across this video where [Rear Admiral Grace Hopper] explains how to visualize a nanosecond. Now we had never heard of [Grace Hopper] before, but once you watch the clip (also embedded after the break) you’ll want to know who this person is. We work with divisions of seconds all [...]
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12:03
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Hack a Day
Cruising estate sales can be a total crapshoot – sometimes you find a goldmine, other times nothing but junk. [John Ownby] recently found a sleek-looking old blender at such a sale and decided to take it home. The chrome plated base and fluted glass immediately caught his eye, but he didn’t buy the blender so [...]
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9:01
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Hack a Day
Remember those old wireless controllers made for the consoles of our youth like the NES and Super Nintendo? They didn’t work well, mostly owing to the fact they were built using the same infrared technology that is found in a remote control. Now that all the modern consoles are wireless, [micro] over at the nftgames [...]
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14:01
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Hack a Day
Tesla Coils are always a blast to see and are relativity simple to build. While there are plenty of sites on the subject, [Michael's] newest instructable breaks building a solid state Tesla Coil down to 12 easy steps. Items that should be familiar to anyone who has even looked at a Tesla Coil include PVC [...]
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7:00
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Hack a Day
If you’ve ever wanted your own self-driving car, this is your chance. [Sebastian Thrun], co-lecturer (along with the great [Peter Norvig]) of the Stanford AI class is opening up a new class that will teach everyone who enrolls how to program a self-driving car in seven weeks. The robotic car class is being taught alongside a [...]
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11:00
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Hack a Day
Retro is in the air today as [John] has tipped us off about a new game he has written for the Tandy Color Computer (CoCo), The game, inspired by the homebrew game DOWNFALL for the Atari Jaguar, features what looks like snappy game play, lots of bright colorful animation and has just entered the Alpha [...]
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9:01
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Hack a Day
[XVortex] pulled off a pretty incredible firmware hack. He managed to get a firmware upgrade for Synology running on a QNAP machine. These are both Network Attached Storage devices, but apparently the Synology firmware is better than what QNAP supplies with their offerings. The nice thing is that this is not a one-off hack. You [...]
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8:01
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Hack a Day
[Andrea] built this LED chaser using one logic chip. It illuminates all but one of the six LEDs, with the dim bit moving back and forth along the row in a chase sequence. This is something like an inverse Larson Scanner without the fading tail. But doing it with a logic chip instead of a [...]
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6:01
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Hack a Day
Confronted with the issue of finding a use for his mounting pile of junk electronics, [Rue] set out to build a persistence of vision device using a hardware state machine. We have a suspicion that his original link may go down if there’s too much traffic so here’s a cached link just in case. Any [...]
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15:24
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Hack a Day
You probably know that if you spin a motor (mechanically) it generates electricity on what would normally be the inputs. This can be a problem when you shut off a spinning motor and is the reason that protection diodes are built into motor driver circuits. But [Dino] isn’t interested in driving a motor, he wanted [...]
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10:01
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Hack a Day
[Tim Hunkin], builder extraordinaire and host of The Secret Life of Machines is a bit frustrated with the current economic climate and decided to take out his frustrations with a game of Whac-A-Banker. [Tim]‘s version of the classic Whac-A-Mole game uses tiny air cylinders to actuate five banker figurines up and down. The figures were cast with [...]
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7:01
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Hack a Day
Any self-identified geek that spent some time in the 80s will tell you how they used to type out programs into their ‘microcomputer’ with BASIC. It was a simpler time when a computer’s raison d’etre was simply being a BASIC interpreter. These days are long past us now; you can’t simply turn on a computer and [...]
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7:01
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Hack a Day
Any self-identified geek that spent some time in the 80s will tell you how they used to type out programs into their ‘microcomputer’ with BASIC. It was a simpler time when a computer’s raison d’etre was simply being a BASIC interpreter. These days are long past us now; you can’t simply turn on a computer and [...]
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14:09
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Hack a Day
Here’s something we thought we would never see: computing with just pipes, /dev/zero, and /dev/null. As a thought experiment, [Linus] imagined a null byte represented an electron. /dev/zero would have an infinite supply of electrons and /dev/null would make a wonderful positive power supply. With a very short program (named mosfet.c), [Linus] can use Linux pipes [...]
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9:01
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Hack a Day
[George] is a Neo Geo aficionado, and among his collection of paraphernalia, he has a MVS-Mini game console. His mini “Multi Video System” is a 2-slot model, meaning that it can hold two game cartridges at a time, which are indicated by plastic cards inserted in the cabinet’s face plate. Instead of swapping those cards [...]
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7:01
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Hack a Day
For a computer that debuted in the early 80s the MSX was a very respectable machine. Of course these were the days that superimposing graphics over a video was an amazing feat, but [Danjovic] and [Igor] are still having fun with their boxen. They designed a software interface for the Wii Nunchuck (translation) on their trusty MSX computer. [...]
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6:01
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Hack a Day
Who wouldn’t want to build a computer out of relays? We do, but we’ve got too many projects on our plate already. It looks like [rory] has his priorities in order because his build is one of the most amazing we’ve ever seen. We’ve seen [Harry Porter]‘s amazing relay computer and we’re familiar with [Konrad Zuse]‘s WWII era endeavours. [...]
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5:01
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Hack a Day
As a life long lover of his venerable Commodore 64, [Frank] was looking for a way to speed up the development time when writing C64 demos. His solution is a universal C64 cartridge that will connect to a PC over a USB port. The board is powered by a CLPD and a microcontroller loaded with code [...]
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7:01
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Hack a Day
[Chris Fenton] needs your help. After constructing a 1/10th scale, cycle accurate Cray-1 supercomputer and finding a disk with Cray software on it, he’s ready to start loading the OS. There’s a small problem, though: no one knows how to boot the thing. [Chris] posted a disk image for a Cray-1/X-MP with the help of the people at [...]
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13:01
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Hack a Day
[John Zitterkopf] is in the middle of restoring a vintage Sega Star Trek Captain’s Chair arcade game for the upcoming 2012 Texas Pinball festival, though one prerequisite for the show is that the game supports some sort of free play mode. At this point he doesn’t have the option of tracking down a freeplay ROM [...]
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10:01
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Hack a Day
For a young geek in the 80s, the it computer was the IBM PCjr. On paper, it was a truly remarkable leap in technology. With a wireless keyboard, light pen, and optical mouse it was an impressive, if maligned, piece of hardware. There was a small problem with the optical mouse, though; it required a special [...]
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11:01
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Hack a Day
Building your first circuit is empowering, but make sure it’s not too empowering. [Jon] sent in a great tutorial of power protection circuits to make sure you don’t release the mystical blue smoke that make electronics work. There’s an in-depth tutorial of the classic series diode that’s the simplest of all power protection circuits. There’s not much to [...]
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9:01
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Hack a Day
[Bob Alexander] wrote in to share a hobby of his that we thought was pretty timely considering the new year is quickly approaching. For several years now he has put together a custom calendar for himself, including both dates he finds important along with sweet pictures of vintage computer equipment. Friends and family found his [...]
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8:01
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Hack a Day
Ammo crate PCs have been around since Unreal Tournament LAN parties, but this one goes further back than that; [Simon] put an Apple II in an ammo crate. It’s a fitting anachronistic build from the same guy that built the TARDIS MAME cabinet. Thankfully, [Simon] didn’t tear apart an Apple IIc for this build. A [...]
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9:00
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Hack a Day
We don’t know why, but the Atari Jaguar is getting a lot of attention this week. [10P6] just came up with this Jaguar/CD combo that reminds us what Atari could have come up with in 1993. The build itself is relatively simple once you get past [kevincal]‘s ‘April Fools’ type joke he played on the Atari [...]
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8:01
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Hack a Day
Nixies and VFDs are great displays, but when using them you’ve got to deal with some fairly high voltages, at least for the micro projects we see on Hack a Day. Luckily, there’s another ancient technology that can be driven at tiny voltages. [Kenneth] put up a great tutorial on Numitron tubes to show the Internet [...]
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5:01
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Hack a Day
If you’ve ever torn into very old equipment for a little refurbishment, you’ve seen ancient capacitors among tube sockets and carbon resistors. These caps are long past their life expectancy and are dried out. Putting a brand-new metal can cap in a piece of equipment from the 40s just seems wrong, though. Luckily, [unixslave] posted [...]
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10:18
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Hack a Day
Most of you probably have a webcam sitting around somewhere, and after all the high voltage projects you’ve done using disposable cameras, we bet you have some camera lenses too. You could always do what [Butch] did and combine the lens from the camera with the webcam to do some up close inspection. This seems [...]
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6:01
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Hack a Day
What makes a project really exceptional? Part of it is a, ‘gee, that’s clever’ angle with a little bit of, ‘that’s actually possible.’ One thing the Hack a Day crew really appreciates is awesome enclosures. Altoids tins will get you far, but to step up to the big leagues you’ve got to bend some aluminum. [...]
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7:01
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Hack a Day
If you are considering repurposing some old computer equipment to create music, be aware that the bar has been raised just a tad. YouTube user [BD594] spent some time sifting through his bin of used electronics and put together a 5-piece band that plays a pretty awesome rendition of The Animals’ “House of the Rising [...]
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6:01
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Hack a Day
On his blog, [Kenneth Finnegan] recently showed off a replica of a fun toy he used to play with as a kid, a telephone intercom system. The setup is pretty simple, requiring little more than a pair of analog phones, a battery, and a resistor. The phones are connected to one another using a standard [...]
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11:01
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Hack a Day
[Carl] sent in his keyboard he made for his FIGnition microcomputer. At least now he has more than 8 buttons. The FIGnition is a tiny little microcomputer that harkens back to the 8-bit days of yore. Designed to be an educational computer like the Altair or Heathkit (sans blinkenlights), the FIGnition gives its students ‘bare metal’ access to everything in [...]
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13:01
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Hack a Day
Yesterday, Korg released a firmware update to their ribbon controller synth, the Monotribe. The firmware is just an audio file that needs to be played to the sync input of the box. [gravitronic] thought this was rather interesting, so he decided to decode the monotribe firmware. It’s the first step to custom Monotribe firmware, and [...]
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14:01
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Hack a Day
When it came time to try out some old-school computing [Quinn Dunki] grabbed a 6502 processor and got to work. For those that are unfamiliar, this is the first chip that was both powerful, affordable, and available to the hobby computing market back in the 1970′s. They were used in Apple computers, Commodore 64, and [...]
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13:01
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Hack a Day
[Andrea] built a seismic wave detector that warns of a possible impending earthquake. Because P waves travel much faster than the “make everything shake” S waves, building a device that detects P waves serves as an early warning system that alerts building occupants to go under a door frame. [Andrea]‘s build detects these fast-moving P [...]
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5:01
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Hack a Day
Does a yo-yo work in zero-g? How about a paper airplane? These questions were answered in 1985 on the Space Shuttle Discovery, but reproduction of results is the cornerstone of the scientific method. [Rob] is about to reproduce some of the awesome zero-g pictures by riding on a vomit comet and taking a few pictures of [...]
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8:01
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Hack a Day
[Matt] entered himself in a pumpkin carving contest this year, even despite the fact that his artistic skills were a bit…lacking. He knew that he had very little chance of winning the contest unless he had a great gimmick to make his creation stand out, so he started brainstorming. [Matt] figured that since his design [...]
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8:15
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Hack a Day
Who hasn’t thought about turning a 1950s slide projector into a digital projector? [Matt] did, but unlike most of us, he actually did it. [Matt]‘s friend [Angus] found an old, single-slide, sans-carousel slide projector in the trash. It’s a wonderful piece of ancient technology with a fabric insulated power cord and bakelite lamp socket. This [...]
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11:01
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Hack a Day
[Thomas’] love affair with Commodore computers spans well over 30 years, and not too long ago he decided to recreate one of his favorite Commodore offerings, the PET. As we have seen with similar undertakings, this sort of project is no easy task, but [Thomas] seems to be making his way along nicely. Using a [...]
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12:01
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Hack a Day
If you’ve ever wondered about the best way to detect dial and DTMF tones from a phone line, [Debraj] is your man. [Debraj] built a DTMF detector using the Goertzel algorithm. Normally, when we think about detecting tones, we pull FFT out of our bag of tricks. The Goertzel algorithm isn’t as computationally complex as [...]
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9:01
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Hack a Day
A few years ago, [Richard] pulled a crushed camcorder out of a junk box at a hamfest. After pulling the half-inch CRT out of the viewfinder, he needed to find a project. [Richard] ended up building the second tiniest game of Tetris we’ve ever seen. After futzing around with the CRT, [Richard] discovered that one [...]
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8:00
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Packet Storm Security Exploits
This Metasploit module exploits a stack-based buffer overflow vulnerability in version 7.5.1 86 of Real Networks Netzip Classic. In order for the command to be executed, an attacker must convince someone to load a specially crafted zip file with NetZip Classic. By doing so, an attacker can execute arbitrary code as the victim user.
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8:00
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Packet Storm Security Exploits
This Metasploit module exploits a stack-based buffer overflow vulnerability in version 7.5.1 86 of Real Networks Netzip Classic. In order for the command to be executed, an attacker must convince someone to load a specially crafted zip file with NetZip Classic. By doing so, an attacker can execute arbitrary code as the victim user.
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8:00
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Packet Storm Security Recent Files
This Metasploit module exploits a stack-based buffer overflow vulnerability in version 7.5.1 86 of Real Networks Netzip Classic. In order for the command to be executed, an attacker must convince someone to load a specially crafted zip file with NetZip Classic. By doing so, an attacker can execute arbitrary code as the victim user.
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8:00
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Packet Storm Security Recent Files
This Metasploit module exploits a stack-based buffer overflow vulnerability in version 7.5.1 86 of Real Networks Netzip Classic. In order for the command to be executed, an attacker must convince someone to load a specially crafted zip file with NetZip Classic. By doing so, an attacker can execute arbitrary code as the victim user.
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8:00
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Packet Storm Security Misc. Files
This Metasploit module exploits a stack-based buffer overflow vulnerability in version 7.5.1 86 of Real Networks Netzip Classic. In order for the command to be executed, an attacker must convince someone to load a specially crafted zip file with NetZip Classic. By doing so, an attacker can execute arbitrary code as the victim user.
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8:00
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Packet Storm Security Misc. Files
This Metasploit module exploits a stack-based buffer overflow vulnerability in version 7.5.1 86 of Real Networks Netzip Classic. In order for the command to be executed, an attacker must convince someone to load a specially crafted zip file with NetZip Classic. By doing so, an attacker can execute arbitrary code as the victim user.
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9:00
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Hack a Day
[Bertho] might have outdone himself this time. He built a Lights Out clone for the 7400 logic competition. Lights Out is an electronic toy sold by Tiger in the mid 90s. The goal of the game is to turn a 5 by 5 grid of light up buttons off. There’s a catch, though – pressing [...]
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9:01
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Hack a Day
[John] found an old Kenmore electric heater at a junk store one day, and thought it would look great in his bathroom. The only problem with the unit is that it was built back in the 1940s/1950s, so it lacked any sort of modern safeguards that you would expect from an indoor heater. There was [...]
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13:01
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Hack a Day
Have a penchant for pain? Why not destroy your fingertips with a wire-wrap tool building a video card made entirely out of discrete components. When [Chris] decided to build an entry for the Dangerous Prototypes 7400 logic competition he already had his hands full. The 74xx chips he had on hand had a maximum clock [...]
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16:01
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Hack a Day
After spending more than 250 hours on his project, [Admiral Aaron Ravensdale]‘s steampunk keyboard is finally done. The keyboard mod was designed around a Model M. After removing the keycaps, [The Admrial] upcycled the keys from old Continental typewriters. Because his typewriters only had 47 keys and the Model M needs 104, three typewriters needed [...]
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8:01
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Hack a Day
The best laid plans of mice and men oft go awry. At least that’s what we’d tell ourselves if we couldn’t find a 30-year-old computer monitor. [Andrew] picked up an old IBM XT on eBay recently and tried to get the video working. He hasn’t seen any success yet, but the way he goes about [...]
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15:01
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Hack a Day
As a new recruit to the 68k Macintosh Liberation Army, [dougg3] is really showing off his hardware hacking ability. He came up with a replacement ROM SIMM for his Mac IIci and made it play the Mario theme on boot instead of the normal chimes. Swapping out the ROM in these old macs isn’t an [...]
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9:01
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Hack a Day
[Bertho]‘s submission for the 74xx logic contest is really impressive. He designed a capacitive sensing touchpad using only 74xx and 40xx logic chips. We’re impressed with the build and his writeup is one of the best resources we’ve ever seen for capacitive sensing. There are two ways to go about designing a capacitive touchpad. The [...]
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4:07
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Hack a Day
For his A-level electronic course work, [Andrew] decided to build a digital sound recorder that doesn’t use a microcontroller. [Andrew]‘s build captures audio from an on board microphone at 8000 samples/second. The audio is digitized into 8-bit sound data and sent to an SRAM. The recording and playback functions are controlled entirely by 4000-series logic chips. He [...]
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4:04
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Hack a Day
In our hubris, we pat ourselves on the back when we’re able to pull data off our old SCSI drives. [Chris Fenton]‘s attempt to get an OS for a homebrew Cray-1 puts us rightfully to shame. Last year we saw [Chris]‘ fully functional 1/10th scale Cray-1 supercomputer built around FPGA. While the reproduction was nearly cycle-accurate, [Chris] hasn’t [...]
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11:01
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Hack a Day
[Urpo Lankinen] has a father who is a huge movie buff, and once you care deeply about something it begins appearing everywhere you look. While driving on a back-country road one day, [Urpo]‘s dad noticed that the shadows of the trees on the road looked like an optical film soundtrack, so it was up to [...]
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6:00
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Hack a Day
The anthem for the Great Recession might be something along the lines of, “That we’re gonna do it anyway, even if doesn’t pay.” Some men just want to watch the world burn, so Hackerbot Labs posted a great walkthrough about shrinking coins and in the process making our pocket change worth just a little bit [...]
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15:34
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Hack a Day
[Jean] was shopping around for a vintage stereo receiver, and happened upon a broken, but repairable Marantz 4240. After getting things back to working order, he thought it would be great if he could use his iPhone to remotely control the unit (PDF Writeup, Schematics and Code). He scrounged around for parts, and after locating a [...]
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6:01
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Hack a Day
[Alexis] sent in a single board computer he’s been working on. The project goal of his build was making it easily reproducible. From looking at the schematics, it’s one of the simplest fully-functional computers we’ve seen. The build runs CP/M 2.2 off of two 3.5 inch floppies. This opens up a lot of options as [...]
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6:00
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Hack a Day
Normally when we see an R/C transmitter used in a build we’re prepared for robots, quadcopters, or UAVs. [Alex] found a new use for his Futaba radio – hooking it up to his Super Nintendo. We’ve seen a lot of builds using game controllers as interfaces to other hardware. The N64 media remote comes to [...]
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10:01
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Hack a Day
Deskthority forum user [lowpoly] recently posted a writeup on his complete overhaul of an Apple M0110 mechanical keyboard. Any one familiar with the satisfying clack of a good mechanical key under their fingers can appreciate the effort put into this project. [lowpoly] removed the keyboard’s PCB, rewired the key matrix adding diodes, built in a [...]
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4:05
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Hack a Day
If you find a crusty old IT guy and give him half a chance, he’ll probably regale you with stories of how things were done “in the old days” where no one had their own computer and everyone worked on mainframe-connected dumb terminals. [JSTN] yearned for a true to life terminal display that he could [...]
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11:01
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Hack a Day
For decades a thunderous roar rose from the bowels of IBM keyboards like the animus of angry and forgotten gods. These keyboards have fallen silent of late, due only to incompatibility with newer hardware. Now, Model Ms have been given a reprieve from landfills or recycling centers because of the work of [wulax] of geekhack and his [...]
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15:00
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Hack a Day
The most recent installment of [Dino Segovis’] Hack a Week covers the construction of a simple NPN transistor audio preamp. Some time ago, he built a small audio amplifier using an LM386 which worked well, but didn’t quite get his music as loud as he would like it. He decided to build a preamp to [...]
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8:01
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Hack a Day
[M. Eric Carr] came up with an interesting build for the 555 contest earlier this year, and we’re pretty sure that it would have kicked the winner of the complex category off the throne if it were completed. Although it’s a few months late, we’re happy to feature at least part of his 555-based computer [...]
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14:01
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Hack a Day
To say that Commodore 64 aficionados are a dedicated group would be quite the understatement. There are still quite a few individuals that spend all sorts of time building and programming for the C64 in order to make using them enjoyable, and to keep up to date with current technologies. [Luigi] is one of these [...]
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15:01
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Hack a Day
[Garnet Hertz], a professor and “artist in residence” at UC Irvine, built a drivable Outrun arcade cabinet for an experiment in augmented reality. The old fiberglass and wood cabinet was hacked up and the motors, wheels, and drive train from an electric golf cart were stuffed inside. The original steering wheel and pedals were used [...]
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17:49
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Packet Storm Security Recent Files
This whitepaper gives a short inside of hacking Mifare Classic. Mifare Classic is a inexpensive, entry-level chip, based on ISO/IEC 14443 Type A, 1kB or 4kB. It uses the 13.56 Mhz contactless smartcard standard, proprietary CRYPTO1 with 48 bits keys. There is no protection against cloning or modifications. Anyone with 50 EUR reading can use this weakness against their infrastructure. This cookbook is a proof of concept demonstrating how easy it can be done.
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17:49
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Packet Storm Security Misc. Files
This whitepaper gives a short inside of hacking Mifare Classic. Mifare Classic is a inexpensive, entry-level chip, based on ISO/IEC 14443 Type A, 1kB or 4kB. It uses the 13.56 Mhz contactless smartcard standard, proprietary CRYPTO1 with 48 bits keys. There is no protection against cloning or modifications. Anyone with 50 EUR reading can use this weakness against their infrastructure. This cookbook is a proof of concept demonstrating how easy it can be done.
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8:00
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Hack a Day
[Frank], like many people, has a soft spot in his heart for the Commodore 64. He prefers to play his C64 games on his computer nowadays, but likes using his old school Competition Pro rather than some modern controller with remapped buttons. The only problem with using the controller is that his new computer doesn’t [...]
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11:58
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Hack a Day
After seeing our communications via light post , reader [Chris] dropped this handy little link in our inbox. A very good tutorial about using infrared to enable communications between 2 pic micro controllers. The tutorial covers all the parts you will need, physical wiring and schematics with notes detailing each section of the circuit. It [...]
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6:04
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Hack a Day
A few years ago, Tube Clock forum member[Sine1040] bought a set of four brand new aircraft indicator units that were built some time in the early 70’s. He had no idea what the units were actually used for, but he did know that he could repurpose them into some pretty slick looking clocks. He disassembled [...]
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12:30
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Hack a Day
[Vincent] on the EEVblog forums had an idea for an inexpensive resistor substitution decade box. The build uses cheap decimal thumbwheel switches he bought on eBay. Each switch is wired up with resistors for each digit, and each switch is wired up in series. The result is a small, easy to read resistor box with [...]
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14:01
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Hack a Day
When we first covered [Markus]‘ portable SID player we starting dreaming about an alternative universe circa 1987 that included a pocket-sized music player called the Commodore ePod. [Markus]‘ updated firmware that connects his SID player to a PC will have to do for now, we suppose. The new firmware boots the Portable SID player as either a [...]
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9:01
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Hack a Day
[Jeri Ellsworth] has been working on a direct conversion receiver using an FPGA as an oscillator and a PC sound card DSP. Being the excellent presenter she is, she first goes through the history and theory of radio reception (fast forward to 1:30), before digging into the meat of the build (parts 2 and 3 [...]
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10:07
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Hack a Day
[RB] at Embedded Lab sent in a great guide on how to control appliances with a remote control using a really clever implementation of a decade counter and IR receiver. The build itself is very simple – just a relay connected to mains power and a handful of resistors and transistors. The device is controlled [...]
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4:07
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Hack a Day
[Niklas Roy] sent in a project he just completed called PING! Augmented Pixel. At first glance the entire build is just a plain jane retro video game stuffed into an ATmega8 but looks can be deceiving. The video game is actually an augmented reality device that inserts a pixel into a video feed. The bouncing [...]
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7:50
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Hack a Day
One thing we can all probably agree on is that Tesla coils are one part high-voltage electricity and two parts pure awesome. [Rob Flickenger] thinks so too, and he built a pretty nice one in his workshop some time ago. He took a bunch of pictures showing off the coil’s capabilities, but he thought that [...]
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9:00
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Hack a Day
Instructables user [zvizvi] was working on putting together a portfolio for his application into Industrial Design school, and thought it would be neat to repurpose an old rotary phone that used to belong to his grandmother. He originally had pretty lofty goals for the phone, but eventually pared back his vision to include one-way communications [...]
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10:30
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Hack a Day
There’s something quite satisfying about building your own computer. Nowadays, constructing your own desktop PC is relatively easy, so if you really want to get your hands dirty, you have to take a step back in time and give some vintage hardware a spin. [YT2095] has spent a good portion of the last two months [...]
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5:06
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Hack a Day
[Eric] wanted to teach his kids Morse code, so he built a tiny Morse code trainer. [Eric] built the trainer around an ATtiny85, and the rest of the circuit follows this minimalist idea. After connecting a piezo beeper and 6-pin ISP header, the only thing left to do was write a little code and start [...]
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8:12
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Hack a Day
For an upcoming road trip, [Patrick] needed a small variable power supply. Instead of lugging around a bench supply, [Patrick] did the sensible thing and reverse engineered a cell phone charger to fit his requirements. After cracking open an old Kyocera car charger, [Patrick] found a small PCB with completely labeled, all through-hole components – [...]
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4:06
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Hack a Day
Although [Jack] just graduated High School and doesn’t have much experience with electronics, that didn’t stop him from building the DUO Adept, a homebrew computer built entirely out of TTL logic chips. The DUO Adept has 64k of memory, 6K of which is dedicated to the video ram that outputs a 240×208 black and white [...]
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16:01
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Hack a Day
It looks like we now have another way to annoy ourselves with extremely high voltage. The bells operate under the same principles as the electrostatic see-saw we covered last month. A voltage is applied to one can while the other can is grounded. An insulated pendulum is placed between each can, and with a little [...]
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4:06
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Hack a Day
[Andrew Rossignol] was curious one day and decided that he wanted to display graphics on an oscilloscope after playing around with the X and Y inputs. [Andrew] started out with a resistor ladder on the DAC of his AVR Butterfly. He was able to to draw a line on the oscilloscope’s screen but bandwidth limitations [...]
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15:01
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Hack a Day
The folks at Evil Mad Scientist Labs just put up a post on the giant mechanical binary computer they brought to last month’s Maker Faire. As a faithful reproduction of the Digi-Comp II from the 1960s, every operation is powered by balls falling onto levers. Unlike the original, the larger version is powered by billiard [...]
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11:01
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Hack a Day
When notes stuck to the water heater failed [Ryan] decided to whip up “the world’s most expensive 240V relay” using a servo, a real time clock and of course an Arduino. All in an attempt to save a buck or two thanks to LA’s “Time-of-Use program”. Using a protoshield Ryan soldered up a RTC module [...]
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5:06
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Hack a Day
A few days ago, we featured an Apple ][ USB keyboard mod, and several readers chimed in sharing their own retro conversions in the comments section. We had no idea that many of you had made similar modifications of your own, so here’s a quick roundup of what your fellow Hackaday readers have put together. [...]
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16:01
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Hack a Day
Sometimes it’s apparent that there is no practical use for something featured on Hack a Day, but we don’t know if [Andrew Filer]‘s Apple ][ USB keyboard qualifies for this. After reading through the very thorough documentation available in electronic and dead tree formats, [Andrew] decided that Apple ][ would make a great USB keyboard. [...]
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8:01
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Hack a Day
[Guido Socher] built himself a great little bench power supply that’s able to put out 30 Volts at 2 Amps. Instead of taking the easy way out by putting a few taps on an ATX power supply, this project was built around a generic 24 Volt laptop power brick. An ATmega8 generates a PWM signal [...]
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10:13
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Hack a Day
While it seems that the digital camera is king, some people still love shooting with good old 35mm film – [Costas Kaounas], a high school teacher and photographer certainly does. He recently published plans for a great-looking 35mm pinhole camera over at DIY photography that we thought you might enjoy. [Costas] put together a set [...]
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12:37
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Hack a Day
[Dino Segovis] wrote in to share yet another installment of his Hack a Week series, though this one is quite timely. It was 131 years ago today that [Alexander Graham Bell] unveiled the Photophone to the world. A precursor to fiber optic technology, [Bell’s] incredibly important invention can be easily replicated in your garage, as [...]
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8:01
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Hack a Day
[Markus] on the DangerousPrototypes forum came up with a great little SID player. The SID was (is?) the awesome sound generation chip inside the Commodore 64, and along with Game Boys and NESs laid the foundation for the chiptune scene. We’re happy to finally see a small SID player that doesn’t resort to SID emulation [...]
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8:00
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Hack a Day
While Boston Dynamics’ Big Dog is pretty impressive, check out this video of the US Army’s first attempt at a quadruped vehicle. Created in the early 1960s with the help of GE, this Army experiment was the first successful attempt of replicating a four-legged animal with a mechanical machine. This “Walking Truck” was driven by [...]
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7:01
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Hack a Day
How many 555 timers does it take to add up two 10 digit numbers? [Alan's] 555 Adding Machine does it with 102 of them, he designed the machine as an extreme entry to the 555 contest and the original plan was to make it even more complicated. This machine uses the 555′s to implement a [...]
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6:08
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Hack a Day
If you are a frequent reader, you are undoubtedly familiar with hacker [Sprite_tm]. He has been working with fellow members of the TkkrLab hackerspace to get things ready for their official grand opening on May 28th, and wrote in to share a project he recently completed to kick things off. As part of their preparations, [...]
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8:10
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Hack a Day
A few months ago, [Ulysses] had a project in mind that would run Zork on a TDD. Although it was a bit of a struggle getting the project ready in time for the Bay Area Maker’s Faire, the accompanying build blog tells us it was more than worth the effort. After hooking up the guts [...]
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9:21
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Hack a Day
In the early 80s, millions of terminals were handed out to French telephone subscribers. Nearly 9 million of these Minitel dumb terminals were in use at one time, and with that degree of ubiquity, we’re surprised we haven’t heard of them before. These boxes were usually connected to the outside world through their internal 1200bps [...]
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17:00
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Hack a Day
As the most direct interface between computer and programmer, keyboards can be a deeply personal, sometimes almost religious thing. Some find solace in their vintage IBM Model M, or luxurious leather keyboard, but maker [Carol Chen] took things into her own hands, quite literally. [Carol]’s Maker Faire exhibit has a half dozen specimens of interesting commercial tactile and ergonomic [...]
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13:21
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Hack a Day
Yesterday, the BBC posted an article on [Julian Skidmore]‘s AVR-based homebrew computer. [Julian]‘s project uses an AVR and a derivative of Forth to recreate the capabilities of the 8-bit computers of yesteryear. With 8kB of RAM, [Julian] got a TV-out up and running, and even included code for a Lunar Lander game. We’re happy for [Julian] getting some [...]
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7:01
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Hack a Day
[Rajendra Bhatt] wrote in to share a tutorial he put together demonstrating the basics of using LED dot matrix displays. While this subject might be old hat to many out there, his helpful walkthroughs are geared more towards beginners who are exploring various electronics concepts for the first time. He explains the theory behind LED [...]
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11:16
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Hack a Day
[James] didn’t like losing detail when scanning in photographic negatives, so he repurposed an old scanner and turned it into a lightbox. The Flickr set of the build shows [James] installing a compact fluorescent bulb in the body of the scanner. Aluminum foil reflects the light, and the scanner glass is painted white for diffusion. [...]
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7:08
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Hack a Day
Whenever you are working with infrared, you sometimes need to see it, and thats kind of hard. Most people would jump up and say “camera”, but that is not always the best solution. For instance my phone camera is so filtered its near useless for IR, and my DSLR will only take a full blast [...]
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5:06
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Hack a Day
Instructables user [knife141] enjoys restoring vintage electronics in his spare time, especially old radios. AM radios tend to pique his curiosity the most, and in this tutorial, he discusses the restoration of an old radio from the early 1940s. While people would likely assume that the vacuum tubes in a radio this old are the [...]
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12:48
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Hack a Day
[Tyler] has been using Google Voice extensively for some time now, but he hasn’t quite found a microphone/speaker setup he is happy with. He tried a headset, but that just didn’t do it for him. While browsing around at his local thrift store, he came across an old Model 500 rotary phone for just a [...]
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8:20
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Hack a Day
Calculators are a handy tool to have around in just about every application. We often take them for granted today, but even when I was a kid they were still sort of expensive devices that you put thought into buying. Illustrating just how far we have come is this awesome Relay Calculator brought to us [...]
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10:01
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Hack a Day
[Gregory] wrote in to share his most recent project, an FPGA clone of the PC Engine/Turbografx 16 console. You may remember him from last year, when we talked about his SEGA Genesis FPGA clone. He just couldn’t leave well enough alone, and decided to resurrect yet another 16-bit machine in FPGA form. He has been [...]
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13:01
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Hack a Day
How this one missed us, we’ll never know. [GG] built himself a retro-styled Z80 nanocomputer over two years using all 1980′s tech. Laid out on one of the largest pieces of perfboard we’ve ever seen on a project, the computer uses a vintage Z80 CPU running at 2.5MHz, 8K ROM, 16K RAM, RS-232 and Parallel [...]
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15:30
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Hack a Day
[Collin Cunningham] over at Make recently wrapped up another edition of “Collin’s Lab” - this time around, the subject is breadboards. He starts off by discussing a common solderless breadboard, something you are no doubt familiar with. What you might not know however is how breadboards got their name. Way back when, before there was a [...]
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14:30
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Hack a Day
Augmented reality might be all the rage these days, but when you take a closer look at the technology, you will find that these sorts of optical illusions are not new at all. Artist [Sebastian Schmieg] was pondering augmented reality for a bit and decided he could replicate the effect using old and obsolete technology. [...]
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12:00
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Hack a Day
For several years, [Jim] has wanted to construct a fully-mechanical universal Turing machine. Without the help of any electronic circuits or electrical input, his goal was to build the machine using simple hand tools and scrap materials. If you are not familiar with the concept of a Turing machine, they are devices that manipulate symbols [...]
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14:29
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Hack a Day
[Jozerworx] had always wanted to build a CD player that looked like an old-time Victrola Phonograph player, though he never seemed to be able to find the time to do it. With all of his other projects out of the way, he decided to finally get started on building his phonograph. He went garage sale [...]
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6:02
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Hack a Day
Inspired by the memory of a childhood electronics kit, [Frank] decided to make a new 555 Synthesizer and enter it into the 555 contest. [Frank's] remake is played with a stylus, and sports an attack and release envelope circuit, housed in a quick but effective acrylic case. Using a single 555 timer, a hand full [...]
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4:04
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Hack a Day
While digging through a pile of old camera equipment, [Jake] stumbled upon a camera that belonged to his grandfather and was curious to see what sorts of images the old lens would produce. He wasn’t interested in messing around with a film-based camera for his experiments, so he needed to find a way to mount [...]
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13:14
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Hack a Day
Building LED arrays that can display all sorts of different patterns is pretty easy these days. Hook up an Arduino, do some charlieplexing, and off you go. When [Viktor] was younger he didn’t have all those fancy schmancy microcontrollers and circuit simulation software you kids have these days. In fact, last we heard, he had [...]
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6:00
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Hack a Day
This 2-bit adder was a lot of work to build. It uses a total of thirty-six 555 timers and it does have the option of adding or subtracting numbers. It’s a rather unorthodox use of the part, depending more on the chip as an inverter and taking advantage of the fact that there’s an NPN [...]
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10:32
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Hack a Day
Everyone’s getting on board with the 555 timer projects. But [Tom] didn’t just come up with one project, he shared a slew of ideas related to analog robotics. They’re center around servo motor control. You can see in the video after the break he has a pleasing way of sharing a lot of details while [...]
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7:30
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Hack a Day
Halloween may have come and gone but thats no reason not to take a look at this neat little special effects setup. Basically it uses an analogue circuit to monitor an audio signal and triggers some camera flashes using 5V relays. The idea is that you can play lightning strikes and other spooky sounds, and the system will trigger camera flashes to coincide with the [...]
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4:07
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Hack a Day
[Eric] recently built an AM radio based on a 555 timer, and posted a few pictures to the Hack-a-Day Flickr pool. He used the 555 timer as an AM demodulator and power amplifier in order to drive the speaker. A hand-wound inductor is used to tune the signal which is then superimposed over the ramp [...]
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8:37
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Hack a Day
This device is called the Cumulus and it’s used to emulate the floppy disk hardware for Oric-1 and Oric Atmos computers. These 1980′s era computers included an expansion slot to which you could connect a floppy drive. That module, called a Microdisc system, also included the driver circuit which means you can’t just use a [...]
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7:36
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Hack a Day
This somewhat odd-looking apparatus is being used to measure earth’s rotation. At the heart of the system is a PlayStation Move controller, used because of its dual-axis gyroscope which has the highest dynamic range compared to other available products like the Wii Motion Plus. It rests on a column perched atop a record player that was chosen [...]
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4:05
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Hack a Day
We get a lot of tips about old hardware playing recognizable tunes. But once in a while one of these projects goes above and beyond the others and this is a shining example of great hardware music. [FunToTheHead] put together a music video (embedded after the break) that shows his custom MIDI device playing Bach’s [...]
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14:20
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Hack a Day
[Jeri Ellsworth] sent over a 555 design contest entry that struck her as particularly interesting. The Synthanola is a three-channel music synthesizer that accepts input from an old Heathkit paper tape reader. While this hack might seem overly retro, it’s actually an extremely appropriate use of technology, as the Heathkit H-10 and the 555 timer [...]
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12:25
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Hack a Day
[Aaron] says in our comments that he also made an LED dog collar. This Christmas themed dog collar uses an ATTiny13a and a hand full of red and green LEDs (28?). While the animations aren’t as complex as the collar we posted earlier today, we though you might enjoy this one as well. From the [...]
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8:04
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Hack a Day
[Spi Waterwing] wrote in to make sure that we were aware of Logisim, a Java-based open source digital logic simulator. We’ve used Atanua quite a bit in the past but hadn’t heard of this program. It seems to have a pretty big educational following and right off the bat it’s got a feature we’ve always [...]
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4:08
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Hack a Day
[Konstantin] had some extra 27C256 EPROMS lying around and decided to use them to animate an 8×8 LED matrix. He’s not only using them to store data, but driving the display with them as well. The chip holds 32 kilobytes of data which equates to 4096 frames of animation. A 32 kHz clock circuit works [...]
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7:00
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Hack a Day
[Patrick's] latest Instructable walks us though making a clap clap on / clap clap off type of switching circuit, similar in use to that sometimes popular commercial product seen on TV. He does this by using a standard electret microphone, half of an LM324 op amp, a voltage comparator and a PIC micro controller. The [...]
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14:12
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Hack a Day
This analog computer can multiply, divide, square numbers, and find square roots. It has a maximum result of ten billion with an average precision of 2-3%. [Miroslav's] build recreates something he saw in a Popular Electronics magazine. It uses a resistor network made up of three potentiometers with a digital multimeter is an integral part [...]
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12:24
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Hack a Day
[Smartie_on_computer] wanted to do some experimenting with an epson printer. After getting a somewhat disassembled one, the first step was to simply get it running. Unfortunately, one of the ink cartridges was missing and these printers refuse to do pretty much anything without all the cartridges installed. Rather than go purchase a costly cartridge that [...]
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15:00
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Hack a Day
Hackaday forum user [arfink] has shown us a brilliant practical joke he built. This is a magic 8 ball that will blind you with a flash when you flip it over. Have you ever been in a room with one of these and not flipped it over? Neither have we. Using a basic flash circuit [...]
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8:00
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Hack a Day
Many of us have these old 8mm family videos lying around and many of us have lamented at the perspective cost to get them converted to digital. [Paul] came up with a pretty slick way of digitizing them himself. He cracked open an 8mm projector and replaced the drive motor with one he could run [...]
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8:20
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Hack a Day
About thirty years ago [H. P. Friedrichs] pulled off a hack that greatly improved the process of programming with punch cards. At the time, his school had just two IBM 029 keypunch machines. One of them is shown in the upper right and it uses a keyboard to choose which parts of each card should [...]
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9:00
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Hack a Day
Just one look at that banner image and you’ve got to be thinking “that’s old”! This 1970′s era home made calculator used a 4-function calculator IC that was quite advanced for its time. The only problem is that the chip couldn’t do anything other than calcuations, which left it up to the maker of this [...]
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14:00
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Hack a Day
If many of the readers out there longed for a Segway for Christmas but Santa didn’t bring you one, you are in luck. The aptly named Seg-Stick by [scolton] is a great way for cheap transportation. It uses a broomstick, along with two DeWalt cordless drills to power this bad boy on 6” wheels. Like [...]
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12:00
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Hack a Day
At first we were pretty skeptical of this home made fusion reactor instructable. However, we’ve seen home made fusion reactors before, so it is technically possible, we guess. The construction alone is interesting enough to warrant a few moments of looking. We’re not experts, so pardon us if we can’t tell you exactly what is [...]
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9:51
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Hack a Day
Ok, we recognize that this is a bit of an odd upgrade, since many would probably think that a digital upgrade would be more appropriate. However, we found this interesting anyway. [Marker1024] has taken this old Polaroid land camera and modified it to accept a standard 35mm roll. His list of materials may sound fairly [...]
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11:00
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Hack a Day
Professional tape delay units are great fun, but often expensive. You’d think that with so many derelict cassette decks filling the world’s dumpsters someone must have figured out a way to make a cheap tape delay… not only in the interest of saving money (sometimes quality is worth paying for) but also in the interest [...]
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5:00
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Hack a Day
[Matt Sarnoff] is designing his own 8-bit computer from scratch. This means not only designing the hardware but also writing his own kernel and custom libraries. Since we last saw this 8-bit machine hes added both video and sound output which has allowed him to start developing some software for his computer (see it play Conways game [...]
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11:00
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Hack a Day
[Osgeld] takes on the classic VCR head jog wheel in this instructable. He has done a fantastic job not only in his build quality, but in the quality of the writeup. As he points out, the idea of using the head as a jog wheel isn’t new. His construction and build quality however have yielded [...]
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14:48
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Hack a Day
Have you ever wanted to ability to see through objects? Perhaps you have been looking for something special for your own personal TSA role playing adventures? Well, [Jeri Ellsworth] has your back. She has managed to cobble together her own millimeter centimeter wave scanner using a hacked set of Feed Horns (like from a satellite dish) to create [...]
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13:00
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Hack a Day
Tentacles have inspired fear and respect in humans long before anime came into the scene. Sailors shivered in their timbers at the thought of the great Kraken, or that octopus from 20,000 Leagues Under the Sea. It’s no surprise to know that humans have been trying to harness this fear and respect in technological form [...]
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8:00
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Hack a Day
[Andyk75] has done some fantastic work documenting his timelapse addition to his digital camera. Most of the more expensive models of cameras have a remote shutter release, but the point and shoot jobs usually don’t. He decided to add the ability to turn the camera on, then shoot a picture, then turn it back off. [...]
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8:00
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Hack a Day
[calculon] was able to modify a “dumb” adapter to allow his Canon SLR to use the aperture and focus on a retro lens. With his new flip mounted wide angle lens he was able to achieve some pretty neat macro shots. By cutting away some of the cheaper ring he was able to feed the wire through and glue it onto the the [...]
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6:18
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Hack a Day
Powering your gadgets generally seems like a necessary evil. To help with this [Felipe La Rotta] made a really nice bench power supply using a PC power supply and a LM317 adjustable voltage regulator. PC power supplies are an example of a switched power supply(more on that later). The LM317 is a type of linear voltage regulator [...]
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7:28
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Hack a Day
This is Zusie, a computer built out of electromechanical relays. [Fredrik Andersson] picked up a lot of about 100 telephone exchange circuit boards, each with about 16 relays on them. After getting to know a heat gun really well he ended up with 1500 working relays with which to play. The machine runs slowly, it [...]
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12:30
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Hack a Day
If you’ve ever wanted to dive in and take a look at how memory hardware is implemented here is a good example of how to implement some latching circuits with ether BJT or CMOS transistors. BJTs require biasing resistors which increases the complexity and power consumption when compared to CMOS. If power consumption isn’t an issue you [...]
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10:00
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Hack a Day
[Jeri Ellsworth] is back at it again. We seem to cover her work a lot here. Her latest video above covers how she created a point contact transistor from a 1N34 germanium cat whisker diode. After opening the glass casing on the diode, she uses sharpened phosphor bronze metal from common electrical connectors as the [...]
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12:52
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Hack a Day
This circuit board is from the USB dongle of a Girl Tech IM-ME. [Joby Taffey] took it apart and poked around to learn its secrets. These dongles come along with the pink pager that has become a popular low-cost hacking platform. But we haven’t seen much done with the dongle itself up until now. [Joby] used the [...]
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8:00
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Hack a Day
Forget flashlights, and leave those burning lasers at home, [Ben Krasnow] built a search light using a 1000W xenon arc lamp. That box you see on the side of the trash-can housing countains a starting circuit that shoots 30 kilovolts through the xenon lamp to get it started but it is separate from the power [...]
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6:44
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Hack a Day
Check out this home made panaplex display. Panaplex displays are closely related to nixie tubes, but instead of layering individual numbers and lighting them separately, it uses pieces to build the numbers like a digital display. [Lindsay] managed to make one at home, using a jam jar as the vacuum tube. Argon as the gas [...]
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11:00
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Hack a Day
Many exercise machines generate electricity as you pedal or climb in order to run the on-board electronics. Unfortunately if you stop or even slow down too much the juice will die and your exercise program will reset. Wanting to improve on this gotcha, [Mike] cracked open his exercise bike and added some super capacitors. On [...]
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12:00
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Hack a Day
This is an 8-bit computer and Famicom clone that [133MHz] bought for $2. It plays Nintendo games and using an 80-in-1 cartridge it has a rudimentary operating system and set of applications. Seeing a standard DB25 port on the back [133MHz] wondered if he could make the system talk to a printer. His first step [...]
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12:00
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Hack a Day
[Chris Fenton] spent a year and a half constructing a 1/10th scale Cray-1 reproduction. The famous supercomputer was meticulously modelled in a field programmable gate array for a “nearly cycle-accurate” reproduction. [Chris'] hardware of choice for the project is a Xilinx Spartan-3E 1600 development board, using 75-80% of the available resources. The finished product runs at 33 [...]
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11:00
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Hack a Day
Here’s a fascinating project that started with a great idea and piled on a remarkable amount of innovation. Graffiti Analysis is a project that captures gestures used to create graffiti art and codifies them through a data-type called Graffiti Markup Language (GML). After the break you can watch a video showing the data capture method [...]
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6:00
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Hack a Day
[Dan Roe] has been working on Sculptural Robotics for quite some time, and most recently presented his newest creation: Solar Flowers 2010. Typically, Sculptural Robotics (coined by [Dan] himself) are stand alone, static art presentations made from electronic components and wire. [Dan] of course has taken it quite a bit further; giving all his sculptures [...]
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15:00
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Hack a Day
We love hacks that take quality products and make them better. This enhanced firmware for the VCI-100 is a great example of that. In a similar fashion as the Behringer hack, [DaveX] reverse engineer the firmware for the device and figured out a few ways to make it better. It improves the scratch controller and slider [...]
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6:25
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Hack a Day
While hobby brush motors are pretty cheap now adays, there’s always that feeling of why replace when you can rebuild and reuse. As such [John Carr] presents how to change the brush position in motors to revive a dead motor. So long as the motor dies from natural causes commutator wear, the idea is the [...]
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10:04
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Hack a Day
Behold [Retromaster's] field programmable gate array implementation of an Atari 2600. The processor and video chip have both been built in the 100,000 gate Spartan-3E FPGA, with connectors for audio, video, and a Sega controller. The output signals are generated using two DACs made from R-2R resistor ladders, much like the project we saw in August. [...]
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6:27
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Hack a Day
[Firestorm_v1] has done a fabulous writeup on not only resurrecting his dead DockStar with JTAG, but also includes some handy techniques and useful information that could be used with other hardware and JTAG equipped devices. The tutorial itself goes into the details of finding the JTAG, correctly identifying the ports and making an adapter cable. [...]
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11:00
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Hack a Day
A new project called the Unofficial Behringer Control Development Kit lets you tweak or completely replace the firmware on the popular devices. The proof of concept demo shows a custom message scrolling on the 4-character 7-segment display but you can do with the device is only limited by how well you can code for the [...]
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8:12
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Hack a Day
Whenever someone manages to expose vulnerabilities in everyday devices, we love to root for them. [Adrian] over at Irongeek has been inspired to exploit barcodes as a means to attack a POS database. Based on an idea from a Pauldotcom episode, he set out to make a rapid attack device, using an LED to spoof [...]
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6:45
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Hack a Day
Our initial view of the Spy Video TRAKR “App BUILDR” site had us believing this would be an internet-based code editor and compiler, similar to the mbed microcontroller development tools. Delving deeper into the available resources, we’re not entirely sure that’s an accurate assessment — TRAKR may well permit or even require offline development after all. Regardless [...]
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9:00
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Hack a Day
Here’s a great magnetic levitator build. [Scott Harden] dug up the link after seeing that awesome rotating globe this morning. This version hangs objects below an electromagnet but it has a sensor system to provide a constant distance between magnet and object even if the payloads are a different weight. This is done with a [...]
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7:00
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Hack a Day
[Alexy Sha] has done this fantastic hack, where he modified a magnetic floating globe to be motorized and spin on a tilted axis. The original globe was simply levitating via a magnet mounted inside. Though you could spin it by hand, it wasn’t motorized, and actually floated completely vertically instead of being tilted. [Alexy] wanted [...]
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7:00
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Hack a Day
[Jackzylkin] has posted an instructible showing, in detail, the process of creating a USB typewriter. He takes us through the process of disassembling the typewriter, mounting all the sensors where the little hammers strike, and wiring it all up to a custom board to interface with the computer via USB. While he is selling the [...]
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12:00
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Hack a Day
[Ken] needed to supply 3.3 volts of regulated power. He started by using a linear voltage regulator but after a few calculations he discovered that 72% of what he put in was lost to heat. The solution to this is a switched-mode power supply. Rather than burn off energy through a voltage divider, an SMPS turns [...]
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12:00
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Hack a Day
Evil Mad Scientist posted a story about what went into developing the Bulbdial clock. We think the Bulbdial is one of the best pieces of kit out there for many reasons; using colored shadows for each hand is a brilliant idea, the design is clever and uses a low parts count, and the concentric rings [...]
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10:00
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Hack a Day
[Whoopjohn] decided to build a driver board for a display he pulled from a pinball machine. You’ve probably seen these used to scroll both score and messages using a total of sixteen 15-segment digits. We’d love to get our hands on one, and you might too but where? [Whoopjohn] notes that these were usually installed [...]
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14:00
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Hack a Day
[Mathieu] built this display in hopes that he can play pong on it. You can imagine the headache that awaits when trying to figure out how to drive the 6144 bi-color LEDs. I must have worked out because the thing looks great in the video after the break. The solution he chose was a bit unfamiliar [...]
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6:02
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Hack a Day
[John Sarik] keeps cranking out new ideas for his digital Sudoku project. This time he’s using 7-segment displays for each digit. The game play works the same as the Nixie Tube version, but this makes things quite a bit easier to build. The board above is one of the nine modules that make up the [...]
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7:33
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Hack a Day
[Matthew Arnoff] built an 8-bit computer around the Motorola 6809 processor. He chose this processor because it seems there are a lot of Z80 builds out there and he wanted to try something different. This actually packs quite a punch. He’s clocking the machine at 2 MHz with 512 KB of SRAM memory. Compact Flash [...]
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6:00
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Hack a Day
Here’s a hack that makes business sense. [PT] recalls last year’s HOPE conference when their booth was using a virtual credit card terminal for purchases that required manual entry of card information. This year they’ll have the same virtual terminal but this magnetic stripe reader will fill it out automatically. A magstripe reader (reading only, [...]
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8:03
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Hack a Day
If you don’t look close you might think this Seagate Dockstar is in stock condition. But look at the three holes in the white case just above the thumb drive which act as a serial connection for the Dockstar. [Firestorm_v1] posted the instructions after see our post about installing OpenWRT on the device. He did [...]
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12:09
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Hack a Day
Take a PIC 24HJ256GP206 processor and add a dash of knock-off touchscreen and a pinch of SD card compatibility for a DIY digital picture frame. [Daniel] wrote his own driver for the HX8347 controlled LCD that can achieve 15 FPS at 320×240 resolution with 16-bit color. As this was a gift for his wife, [Daniel] included a [...]
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6:00
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Hack a Day
This board is [Eric Seifert's] venture into working with AVR microcontrollers. He has worked with PIC microcontrollers in the past and used the goal of developing a servo controller board as his motivation to try the grass on the other side of the fence. He found he likes the AVR line for its ease of [...]
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13:00
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Hack a Day
[Greg] managed to clone a SEGA Genesis using a field programmable gate array. He used a Terasic/Altera DE1 board, which will set you back about $160, during development. The onboard push buttons are currently used as the controller with VGA for the display. Who knows, maybe there’s enough programming space left to drive a PSP [...]
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9:15
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Hack a Day
[John Sarik] asked himself why a project should only have a handful of Nixie tubes? Without a good answer to his query he went ahead and built this Sudoku game using 81 Nixie tubes. There’s not much of a description for his work but here’s how we think things go: The two knobs manipulate a [...]
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13:50
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Hack a Day
This hack lets you use a TV in place of a graphic LCD screen. But we like to think of this less as a replacement for a GLCD and more of a simple way to get your information onto a television. A PIC 18F452 acts as a translator between the GLCD parallel inputs and a [...]
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12:00
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Hack a Day
[Debraj Deb] put together a current monitoring device that interfaces with the circuit box at his house. The system is controlled by a PIC 18F4520 and uses an LM358 Op-Amp to rectify the AC signal, as well as an MCP6S21 for range adjustments for detecting both high or low current loads. The data displayed on [...]
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6:14
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Hack a Day
[Travers Buda] is giving new life to his abandoned childhood toys. He cracked open a set of Family Radio Services radios he had received for a birthday which work up to 2 kilometers apart. With just a bit of extra circuitry he was able to get them to act as wireless modems. The system functions [...]
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9:00
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Hack a Day
[Travis Goodspeed] has pulled apart a TurningPoint response card, which is an RF device for answering quizzes, attendance checks, and casting votes in a classroom setting. After tearing it apart, he set out to reverse engineer it and managed to get quite a lot done. At this point he can spoof cards, so he could [...]
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14:00
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Hack a Day
[Andrew Jenner] pulled off something amazing with this Physical Tone Matrix. He wanted to build a physical version of a flash applet he had seen. Two layers make up the main user interface. The top layer is a sheet of acrylic that acts as a touch interface and below there’s an LED matrix. [Andrew's] touch [...]
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