The KY-040 Rotary Encoder Module, is an incremental electro-mechanical device that converts the angular position or motion of a shaft or axle to digital code.
The output of incremental encoders provides information about the motion of the shaft, which is typically further processed in processor / controllers into information such as speed, distance, and position.
Technical Parameters Parameter Value Cycles per revolution (CPR) 20
Working voltage 0 - 5V
Size 32 × 19 × 30mm
Documents Schematic Arduno Sample Code bildr Tutorial KY-040 Connections to Arduno
5 Piece x KY-040 Rotary Encoder Module