Sylvain submitted his latest project: a geiger counter with a USB interface. Thanks for sharing your nice project!

USB Geiger Counter [link]

This simple project shows you how to drive a RGB LED with a PIC. Interesting, colorful, and expandable. With a little work, you can replicate the Ford Focus’ best feature with this: its configurable interior lighting.

How to drive a RGB LED with a PIC [link][via]

How to mod your G5 PowerMac Case to display a the time. No alteration to the case is needed – the LEDs are arranged to match the G5 tower’s mesh grill pattern -  which makes this hack even better!

Build a Clock into your PowerMac tower [link] [via]

This isn’t exactly a set of instructions, but anyone familiar with the Arduino should be able to make up something similar to this. With nice pads (think recycled mousepads) and some nice packaging, this could make up a great electronic drum set.

I’ll be exploring this in the next year as I’d really like to have a drum set at home, but lack the space and don’t want to spend much money on this. Plus, the ability to control a drum machine by playing “real” drums is more interesting (to me) than playing a “real” drum. I can’t get enough of that TR-808 bass drum.

DIY Arduino MIDI Drum Kit [link]

This is a pretty sweet project: a DIY low speed AVR oscilloscope. Complete source code, schematics diagram and pictures are all available on Serasidis Vassilis’s website.

DIY  Low speed AVR oscilloscope [link] [via]

Wanting to take full control of his Christmas tree, Brian from Hackszine used the open-source Arduino microcontroller to drive a homemade grid array of 64 LEDs. Pretty nice. Again, a nice project that can be decontextualized, rehashed and reinterpreted in the true hacker/xmas spirit.

Arduino-Powered Holiday Lights [link] [via]