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

The analog outputs from these are fed to HX-711 24-bit ADC boards. An Arduino Nano processes the data and displays it on two banks of eight-digit LED modules. [Sergei] also experimented with a 20 ...