also known as digital potentiometers. As a regular contributor, I’ve already published one related article a couple of years ago, but now, I’m going to introduce you to the dual-channel electronic ...

This appears to be a standard dual potentiometer, widely used as a volume control in portable stereo audio systems ... was used with the help of a simple code to operate an Arduino Uno as an analog ...

this one uses the tried-and-true method of FM synthesis courtesy of an Arduino Nano R3. In addition to the 17 keys, there are eight potentiometers here — four are used for FM synthesis control ...