[Fjord Carver] brings together an RGB LED and CdS Photoresistor to make a ... This time around it’s an Arduino doing the measuring instead of a PIC. So why isn’t that sensor shown in this ...

[Stan] built this LED matrix using a 16×16 grid of RGB LEDs. He built the hardware ... several pictures, and a schematic. He’s using many of the same principles outlined in our How to Design ...