Each Bar absorbs approximately 60-65mA at 12V. Here three such LED light bars (one Red, one Green and one blue) are used to complete the circuit. Use a standard 9V battery to power the arduino board, ...

Schematic of the Arduino Lights Dimmer Circuit You must have 4 identical circuits for each lamp that are connected to pins 3, 5, 6 and 9 on the Arduino UNO Board. Also be aware that this project is ...