A few years ago, [Frans-Willem] bought a few RGB LED panels ... The panels in question are HUB75 LED panels. In the 32×8 panels, there are six data pins – two each for each color – four ...

[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 ...