The Lux Spectralis

The Lux Spectralis is a deluxe RGB (red, green and blue) LED (light emitting diode) blinky that you can build. Soldering is required. You will need a soldering iron, some solder and a pair of wire cutters to assemble the kit. Not shown in the photo is the battery holder that holds 3 AAA cells, not supplied. A small microcontroller (Atmel AVR ATtiny13) is preprogrammed with many different display modes that you can select with a pushbutton.

Assembly Instructions:
You will need these assembly instructions (13 pages, 1.6 MB) to build the Lux Spectralis from a kit. And then again, maybe you won’t. It’s not terribly complicated and all the parts are labelled on the PCB (printed circuit board). You will need Adobe Acrobat Reader or equivalent software on your computer to view or print out the instructions.



[Source] The Lux Spectralis