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This one might be an oldie, but it’s certainly a goodie. Way back in 2005, [David] and [Charles] needed a project for one of their engineering courses. With so many loose resistors scattered over the lab, they decided to build an automated resistor sorter (PDF warning) to separate these resistors and put resistors of the same value [...]

Tags:  automated resistor sorter charles david plastic-tubes resistors engineering-courses Hardware  

The Atari Punk Console, a tiny synthesizer based on the ubiquitous 555 timer chip, is the first build de rigueur for any budding electronic wizard wanting to build musical devices. With just a handful of caps, resistors, and a pair of pots, the APC is a fabulously fun and easy build made even cooler by [Pat]‘s addition of [...]

Tags:  punk stick atari timer-chip resistors musical hacks  

When [Steve] saw that we requested reader’s solutions to storing hundreds of different components, he had to send in his solution to storing bunches of ICs, resistors, transistors, and other components. Like most of the suggestions we’ve seen, [Steve]‘s solution relies on #10 envelopes stored in boxes specifically designed for holding envelopes. While there’s nothing new [...]

Tags:  storage solution reader steve different-components bunches resistors parts  

[Jordan] writes in to show us a project he has been working on called MbedConsole. Living up its name [Jordan] has managed to run a 640×480 VGA output, PS/2 port and console all from the mbed itself. We really mean from an mbed only; no extra hardware is required aside from a few resistors and [...]

Tags:  mbedconsole vga project jordan vga-output resistors ps-2 microcontrollers  

If you’ve ever had to organize a bunch of resistors, you’ll know why [Anthony] created EESpeak. It’s a voice-controlled component look up tool that calculates a component value by listening to you read out color code bands. In his demo video of EESpeak, [Anthony] reads off the color bands of several resistors whilst the program dutifully [...]

Tags:  color component eespeak anthony component-value color-bands resistors tool hacks  

Here’s a tip to keep in your back pocket, you can use a metal file to adjust your resistors. [Gareth] shows off this technique in the video after the break. A metal file is literally all that you need to do some fine tuning. Just make sure you’re starting off with a carbon film resistor [...]

Tags:  file metal cool gareth carbon-film cool-kids resistors misc hacks  

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 [...]

Tags:  smd fine-pitch solder scott minimal-tools special-tools resistors classic hacks  

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 [...]

Tags:  equipment tube refurbishment tube-sockets capacitors resistors classic hacks  

[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 [...]

Tags:  substitution box resistor vincent thumbwheel-switches resistors classic hacks  

Being a long time prankster, [cyclonite] came up with this pretty clever hack in an old USB flash drive. The drive was removed from its case, and the stock memory and controller was removed. On the back, an attiny 2313 is glued to the pcb, while resistors are swapped to work with the VUSB library. [...]

Tags:  drive prankster usb usb-flash-drive resistors pcb microcontrollers  

Here’s a new way to connect an Android phone and a Propeller microcontroller. It’s called the PropBridge and uses a very simple circuit with a voltage regulator, a couple of transistors, and a few resistors. The trick to this method lies in creative use of software features that already exist on Android hardware, the Android [...]

Tags:  debug propeller android voltage-regulator software-features resistors hacks  

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 [...]

Tags:  power cmos consumption power-consumption memory-hardware resistors classic hacks  

Adafruit has a new LED tutorial for people wanting to get started with electronics. It is full of useful diagrams, pictures, and quizzes to help make sure you are understanding the concepts. This is the real basic stuff here: LEDs, resistors, and the laws from Kirchhoff, and Ohm. It starts out explaining the parts of [...]

Tags:  beginner leds concepts laws adafruit kirchhoff resistors Hardware  

[Hasuky] posted a guide for turning a PlayStation 3 Sixaxis controller into a PSGroove exploit device (translated). Unfortunately you’ve got to crack open the controller and add some parts to get it working. The hack requires a PIC 18F2550 (a chip we’ve already seen used as a standalone PSGroove device), a crystal, and various resistors [...]

Tags:  psgroove controller sixaxis ps3-sixaxis-controller playstation-3 resistors playstation hacks  

I took a little time to look into porting code written for AVR in order to run it on the MSP430 architecture. It’s easier than you think, being mostly small differences like an extra step to enable pull-up resistors. But there is a lot to be learned in order to transition away from using EEPROM. Since [...]

Tags:  code msp order extra-step eeprom resistors microcontrollers  

When [Neelandan]‘s cheap flashlight’s internal rechargeable battery died, he scrounged for a replacement. Ultimately, the brightness of the light suffered with his new battery, taken from an old cell phone since he had dropped the voltage a bit. Upon inspection he saw that he would have to swap the individual resistors for each lamp to [...]

Tags:  switchmode battery flashlight cheap-flashlight internal-rechargeable-battery resistors led hacks