There are all kinds of expensive beauty treatments on the market — various creams, zappy lasers, and fine mists of heavily-refined chemicals. For [Ruth Amos], a $78,000 LED bed had caught her eye, and ...

This expandable LED display for a microcontroller in Figure 1 has a simple interface with only 6 data/control wires and can be easily accommodated to a DIY design. The display has static indication.

If you're looking for an electronics project to geek out on over the next couple weekends this comprehensive guide to building an LED cube is geeky and functional. Instructables user CHR and his ...