Arduino friendly, serially addressable, ATTINY85 based rotary encoders. Reduce the pin count from 3 * n where n is the number of encoders (pins A, B and button C) to 2 total. Serial in, Serial out.

Any other Arduino I/O pin will do. In such a case, you must place in the loop() the routines that handle the encoder. If you only use the rotary part and not the switch, you can use: ...

Arduino Rotary Encoder Module Circuit Connection Diagram Now that we have completely understood how a Rotary Encoder Module works, we can connect all the required wires to the Arduino and write the ...

Arduino Rotary Encoder Circuit Diagram The complete circuit diagram for Interfacing Rotary Encoder with Arduino is shown in the picture below The Rotary Encoder has 5 pins in the order shown in the ...