Here is an Arduino based circuit with three independent pulse width modulated (PWM) channels to fulfil your requirements! Just follow the schematic diagram to complete the construction, and use any ...

Olympia Circuits Teases Arduino Programmers With $60 Arno Shield. by Ray Willington — Monday, April 29, 2013, 05:50 PM EDT. Comments. Homemade gadgets seem ... - One RGB LED - One infrared LED ...

Put your LED in the collector circuit and connect anode to your PWM signal. (Easier to describe with a sketch, but I think I have it). The emitter of the transistor is 5-0.7V, so about 4.3V this means ...

PWM pins work the same way across all Arduino boards, so you don't need to go out of your way to buy a Mega if you already have a board supporting PWM. On the Uno, Nano, and Mini, the PWM pins are ...

Everything is driven by an Arduino Mega, which has 16 hardware PWM channels; two short of what he needed. Because of this he had to spend a bit of time figuring out how best to bit-bang the signals.