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 ...

He’s converted a mouse into a tuning dial. The scroll wheel on a mouse is nothing more than a rotary encoder, and can easily be used as a sort of tuning knob. Replacing it with a better encoder ...

Arduino’s GND rail is common to the rotary encoder’s common pin (C) and the cathode of LED 3, while the 5V rail is used to pull-up the data pins (A &B). Arduino’s D9 pin controls LED3. During power on ...