[GreatScott] achieved this with a microphone and amplifier circuit, that was then piped into one of the analog pins of the Arduino ... command over the IR LED. A second potentiometer allows ...

Compatible with Arduino and Raspberry Pi, it can almost meet all your needs. (Without Microcontroller Board) Breadboard and Power Supply Modules-Include various LEDs, resistors, buttons ...

Alex posted all the 3D printable layouts and a schematic for building a specific circuit ... The Arduino board uses a potentiometer to control an RGB (common anode) LED, turning the knob will ...

With a little help from an Arduino mega ... The rest of the circuit is straightforward. It appears he uses a potentiometer for a rough regulation of the current going to the coils, doing the ...