knows this, and rather than put up with the bump and grind of a cheap rotary encoder ... Hooked to an Arduino, the motor made a workable encoder, later improved by sending each phase through ...

An Arduino Due forms the heart of the project, controlling a TEA5767 module, an SH1106 128×64 pixel OLED display and a rotary encoder. The sound signal is passed through an LM4811 headphone ...