EMSea KY-040 360 Degree Rotary Encoder Module Brick Sensor Development Board with Knob Button Cap 5V 20 Pulse Circle 5 Pack

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Package includes 5pcs KY-040 360 degree rotary encoder modules, each one come with a button cap.
5V working voltage, one round number of pulse is 20.
The rotary encoder can count the number of pulses output during the forward direction and reverse direction rotation by rotating.
Unlike rotary potentiometer count, this rotation count is unlimited.
With the buttons on the rotary encoder, it can be reset to the initial state, that starts counting from 0.