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![Permalink for '[Jack]‘s solar-powered clock'](/themes/lilina/web//media/mark_off.gif)
9:01
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Hack a Day
Hack A Day’s own [Jack Buffington] finally finished the solar clock he built for the buildlounge.com laser cutter giveaway. [Jack] has been putting up the build log on his blog, and now the project is finally complete. The clock operates entirely on solar power. Instead of fancy-smanchy electronics, this clock puts a new spin on [...]
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13:01
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Hack a Day
Hack a Day’s very own [Jack Buffington] is throwing his hat into the ring for the Buildlounge laser cutter giveaway with his solar clock that isn’t a sundial. The theory behind [Jack]‘s clock is pretty simple. The light from the sun will be captured by a camera obscura/pinhole camera. The sun’s rays shine on dozens of optical [...]
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14:01
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Hack a Day
It seems that there’s a whole range of Toshiba Satellite laptop computers that suffer from a power jack design that is prone to breaking. We see some good and some bad in this. The jack is not mounted to the circuit board, so if it gets jammed into the body like the one above it [...]
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8:01
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Hack a Day
This week, we are bringing you the final video in our series where [Jack] uses the 3pi robot as a fancy development board for the ATmega328p processor. Today’s video deals with interrupts. If you have been wanting to have your programs do more than one thing simultaneously, interrupts are the solution. [Jack] discusses various ways [...]
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9:01
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Hack a Day
In this week’s video, we continue on where we left off last week with another in our series of videos where we discuss how to program for the ATmega328p processor. This week, [Jack] takes a look at the analog to digital converter and takes us through how to set things up and then how to [...]
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13:57
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Hack a Day
[KJ92508] is flooding the neighborhood with light again this year. Everyone knows of that one house in town that really goes all out, but few put on a show anything like this one. The four Jack-o’-lantern faces lead the way with the opening sequence from A Nightmare Before Christmas. Each has at least four different [...]
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8:01
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Hack a Day
Today we continue on with part 2 of our series where [Jack] shows how to program for the ATmega328p processor using the Pololu 3pi robot. In this video, he starts to dig deeper than last week’s video by showing you how to program in C so that you are directly reading inputs and directly sending [...]
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14:01
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Hack a Day
Instead of the usual Jack-o-lanterns and creepy Halloween decorations, [Rick Murphy] built a dark ride in his garage a few years ago. In case you’ve never been fortunate enough to see one in person, a dark ride is a track-based haunted house meant to be experienced on a small cart. Usually featuring sound, light, and [...]
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16:01
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Hack a Day
Continuing on with our series of Hackaday original videos, this week we are presenting a video all about DC motors. DC motors are relatively simple electromechanical devices that turn electrical energy into rotational movement. In this video, [Jack] takes apart a small DC motor and shows off all of the parts inside and describes how [...]
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8:01
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Hack a Day
For those of you who followed along with our Eagle CAD series, here is the final payoff where we assemble the circuit board that was designed. In this video, [Jack] explains where things will go on the board and then shows you how to solder the parts. For the advanced folks out there who haven’t [...]
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10:01
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Hack a Day
This week we are continuing on with our multi-part series where [Jack] shows you how to use Eagle CAD. This video continues where last week’s video left off by showing how to create a custom part and how to use the schematic editor. If you haven’t seen last week’s video, you can find it here. [...]
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14:45
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Hack a Day
Provided you haven’t been toiling away in a secret lair somewhere (we’re looking at you [Jack]), odds are you may have seen the news that [Steve Jobs] stepped down as CEO of Apple this past Wednesday. This earth-shattering news even eclipsed that of the East Coast Megaquakeapocalypse. It sent the blogosphere into a tizzy, [...]
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10:28
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Hack a Day
Earlier today, [Jack] posted his latest video. He then promptly ran off to the secret Hackaday headquarters to begin work on the next one. Unfortunately there was a weird problem with Youtube which left the video un-viewable. We’ve fixed it now and wanted to let everyone know. We’ve also been getting lots of questions about [...]
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6:00
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Hack a Day
Hackaday headquarters has recently been overrun by techno-groupies hanging around outside so we decided to take some measures to discourage that. A word of warning though, if last week’s video ruffled your feathers then you probably shouldn’t watch this one. In this video [Jack] shows you how to create a stun glove using a disposable [...]
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13:01
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Hack a Day
If you have had it with persistent weeds that seem to come back no matter what you do, here is an ‘environmentally friendly’ way to kill them off permanently. By using a probe charged with 2400 Volts, [Jack] shows how you can conduct the electricity through the plant and all the way down into its [...]
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10:30
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Hack a Day
In this video [Jack] will show you how to take a garden gnome and a solar light to create a FrankenGnome that is sure to creep out your friends and neighbors. This Hackaday original video is the first in a new series of videos that we will now be posting on a weekly basis. You’ll [...]
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11:01
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Hack a Day
[ Jack Gassett] is working on an FPGA shield for the Arduino. At first the idea of this expansion board seemed a little silly. But [Jack] mentions that the FPGA board can be quite useful for adding higher-order electronic complexity like HDMI capabilities to an Arduino. We’re not totally sold on the idea, but he’s not [...]
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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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12:15
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Hack a Day
[Will Jack] built a heavy water fusion reactor and then won district and regional science fair projects with it. Someone give this man a job! We looked in on his fusion reactor about a year ago. At the time he had managed to build a magnetic containment field but didn’t have the voltages or the [...]
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5:46
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Hack a Day
[Kusnick] is into using digital camera rigs for book scanning. The problem is that keeping the batteries charged is a pain, but there’s no external AC adapter jack which would allow him to use the mains. His solution was to build his own adapter to replace the batteries. There are some fancy book scanning setups [...]
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12:00
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Hack a Day
We see Arduino boards used in a lot of projects but we’ve never thought of using one as a USB crossover cable. That’s basically what [Jack the Vendicator] did to get his broken laptop running. When his video card stopped working he found himself unable to access the laptop. Newer machines don’t have a serial [...]
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8:11
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Hack a Day
Happy Halloween to one and all. Let’s celebrate the holiday with some related links. [Brandon] carved the Hackaday logo into his Jack-’o-Lantern. But that’s not all, inspired by EMSL’s Jack-’o-Lantern, as well as our own offering, he added LEDs. Three of them occupy the flesh behind the eyes and nose, fading in and out thanks [...]
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10:00
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Hack a Day
[dajjhman] wrote in to show us how he added a microphone jack to the handset of his Yaesu radio while retaining the DTMF functions. He states that there were some adapters available on the market, but they are non standard and didn’t really fit his needs. The modification itself is pretty simple, especially with his [...]
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10:00
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Hack a Day
Calling this intervalomemter small would be a glaring understatement. It’s tiny enough to fit inside the plastic cover for a 2.5mm jack for use with a Canon DSLR camera. We should point out that the image we put together is a bit misleading. The picture of the jack is version 1 of this circuit and [...]
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6:35
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Hack a Day
Here is the 32nd amateur fusion reactor built in a basement. [Mark Suppes] is right behind [Will Jack], the (then) 17 year old [Thiago Olson], and [Mileiux] in engineering a homemade nuclear reactor. By taking two light elements and colliding them under extreme speed and pressure, a heavier element and energy are produced. [Mark's] goal [...]
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9:04
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Hack a Day
If you think that Arduinos are overkill in most projects we can do one better for you. [Jack Gassett] has a virtual Arduino running on a Field Programmable Gate Array. We checked in with [Jack] back in November to see his work with the AVR8 Soft Processor, an FPGA version of an AVR chip. Because [...]
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14:00
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Hack a Day
Behold the electronic Jack-in-the-box. Open the lid or enter the wrong combination and you’ll set off an alarm. But if you get the right 6 combination code entered using the three buttons you’ll be rewarded with a little ditty and the appearance of the Jack (who lives in the box). [Jeremy Blum] designed this as [...]
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17:28
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Carnal0wnage
Foursquare is pretty neat. You can post you location via phone or browser and get nifty badges for different things or become a mayor of a place if you check in to that location the most. Its also exceedingly easy to cheat at.
I only casually mentioned the idea of cheating to
@Jack_Mannino and within a few minutes of emailing him the link to the API he was already traveling the globe at record speed.
Foursquare even has a nifty and pretty easy to understand API here:
http://groups.google.com/group/foursquare-api/web/api-documentationThe simplest thing you can do is checkin and post your location by vid or venue.
URL: http://api.foursquare.com/v1/checkin
Formats: XML, JSON
HTTP Method(s): POST
Requires Authentication: Yes
Parameters:
- vid - (optional, not necessary if you are 'shouting' or have a venue name). ID of the venue where you want to check-in
- venue - (optional, not necessary if you are 'shouting' or have a vid) if you don't have a venue ID or would rather prefer a 'venueless' checkin, pass the venue name as a string using this parameter. it will become an 'orphan' (no address or venueid but with geolat, geolong)
- shout - (optional) a message about your check-in. the maximum length of this field is 140 characters
- private - (optional). "1" means "don't show your friends". "0" means "show everyone"
- twitter - (optional, defaults to the user's setting). "1" means "send to Twitter". "0" means "don't send to Twitter"
- facebook - (optional, defaults to the user's setting). "1" means "send to Facebook". "0" means "don't send to Facebook"
- geolat - (optional, but recommended)
- geolong - (optional, but recommended)
So a sample request would look like:
POST /v1/checkin?vid= HTTP/1.1
Authorization: Basic
Host: api.foursquare.com
Proxy-Connection: Keep-Alive
Content-Length:
twitter=1&facebook=0
It being a POST you'll have to write some code to handle the Content-Length or use Burp Repeater or Metasploit.
Have fun traveling the globe from your living room.
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12:00
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Hack a Day
Do you ever wonder what projects your neighbors have going on in their basements? [Will Jack's] neighbors might be surprised to find he’s building a fusion reactor. The first step toward completing a Farsworth-Hirsch Fusor is up and running. The picture above shows heated plasma contained in a magnetic field. Next he just needs to [...]
1337day (was: Inj3ct0r, 1337db)
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