Electronic Hacks

RGB LED Lamp Driver Board

With this RGB LED Lamp Driver Board circuit you can make an ordinary light a bit more interesting. With the press of a button you can change the light to whatever color you like. An AVR microcontroller is being used to PWM the RGB LEDs. Video after the jump. “The lamp uses a single momentary button to switch (you need special drill bits to drill the hole in this thin

RGB LED Blink Clock

Why do we have all of these redundant LED segments in the clocks around us. Just to show one digit of time we use 7 LEDs. If you are looking for a less is more solution to showing the time then you need to have a look at the Blinky Clock that John Boxall created. It is being run from a ATmega328 Microcontroller and a DS1307 Real Time Clock. This

Apple's Proprietary Charging Circuit

Apple makes such nice sexy products but dam them for making it so hard for us to work with them. Apple has vendors who make accessory products that work with Apple products and to give them a leg up Apple has incorporated some ridiculous technology. This additional technology adds speed bumps to generic electronic products from working properly with their devices. Limor Fried has reverse engineered what needs to be

Protostack 28 Pin AVR Development Board ver 1.5

Protostack has just released a new version of their popular AVR Development Board. They have listened to user suggestions to improve the design. “All in all there are 6 changes Addition of diode to power supply block, Addition of resettable fuse to power supply block, Support for both IGO and GOI style regulators in power supply block, Size increase of IDC/Dual row section from 2×7 to 2×8 pin, Additional labels

PCB Trace Antenna Design

Colin Karpfinger who brought us the Eagle PCB Design Ordering Tips last time is here with some more PCB help. This time Colin is helping us design a PCB Trace Antenna. One of these days you are going to make a product or project that needs to communicate without stringing a bunch of copper. To me antenna design is magic, some squiggles on a board talk to some squiggles on

New Electronics Podcast

If you can’t get enough information about electronics then there is a new Electronics Podcast you need to listen to. There have only been two episodes and it is so new that it is yet to be named. The show is hosted by Dave Jones of the EEVBlog and Chris Gammell of Chris Gammell’s Analog Life. You will probably remember Dave from some of his videos that we have featured

Garage Door Code Opener

Mike Szczys from Jumptuck created this cool circuit a to open his garage door using a small door bell. Many of us know Mike from his work at Hack a Day. I am honored that this design was inspired by my Button Code project! His project is based around an ATtiny13 microcontroller just because that is what he had laying around. Thanks Mike. “Here’s how it works: The uC waits