WayinTop 5pcs 360 Degree Rotary Encoder Module KY040 Brick Sensor Development Board with Push Button for Arduino

General ParametersModel KY040 Working Voltage 5V One round number of pulse 20 No Limited Rotation CountsThe rotary encoder can count the number of pulse output during rotation in the positive direction and reverse direction through the rotation and this rotation counts are not limited Encoder KeyWith the key on the rotary encoder you can reset to the initial state that is counting from 0 ApplicationBest choice for stepper and servo motor control You could also use it to control devices like digital potentiometer Package Included5 x KY040 360 Degree Rotary Encoder Module 5 x Encoder Push Button.