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.

“We bought two and they work great.” ...

Breakthroughs, discoveries, and DIY tips sent six days a week. Terms of Service and Privacy Policy. Lighting affects us both physiologically and psychologically. We ...

LED Christmas lights are here to stay. They offer the benefits of low energy consumption and no heat, but can you live with the color? Flickr user Solarbotics/CC 2.0 In 2006 the Capitol Christmas tree ...