Just follow the schematic diagram to complete the construction, and use any standard 9VDC Arduino power source to energize the system. Here, for demonstration, three different color LEDs (Red, Green ...

Carefully follow the hookup diagram to complete your hardware,and then upload the sketch to Arduino using the Arduino IDE as usual. The finished circuit can display numbers ranging from 0 through 1023 ...

Pulse Width Modulation is definitely the preferred method of dimming an LED with a microcontroller, but we were interested in hearing about a different method called Binary Code Modulation. BCM doe… ...