This is sample code to retrieve +1 or -1 values from an encoder using the Pi device tree and built-in drivers: Add this line to config.txt for the encoder: dtoverlay=rotary-encoder, pin_a=13, pin_b=5, ...

This project is a simple demonstration of using a rotary encoder to track relative position, with a reset switch to reset the position. Typically this kind of rotary encoder has five pins, although ...

Though the potentiometers and rotary encoders may look similar, they both are very different from each other. The primary difference between the rotary encoders and the potentiometer is its utility.

Gray code is a systematic ordering of binary numbers in a way that each successive value differs from the previous one in ...

Experimenting with an HF oscillator, I needed to control the varactor diode voltage in precise increments over a 2V-10V range. A buffered potentiometer was the obvious choice, and connecting two pots ...

[Long Haired Hacker] has undertaken a high-resolution 3D printer build. He got his hands on some motors to drive the build platform but it doesn’t have a built-in encoder. He knows that optical ...