This is a retired product, but fear not as there is a newer, better version available: KIT-09867
images are CC BY-NC-SA 3.0
Replacement: KIT-09867. The new version has an Arduino serial bootloader programmed onto the ATmega328.
Description: This is a kit for a 3x3x3 cube of RGB LEDs. This kit contains everything you'll need - 27 LEDs, an ATmega168 microcontroller, custom PCB and other supporting components.
The included PCB breaks out the ISP header and the USART pins of the ATmega168; so you can customize the code and control it with a serial device. Sample code comes pre-programmed on the ATmega168.
Power should be provided by a clean +5VDC source. A 2.1mm barrel jack connector is included, but the power supply is not.
You'll need a soldering iron to put this together. All components are through-hole, but the LED matrix is a little difficult to assemble. Make sure you thoroughly read through the build instructions!