Rotary Encoder Module KY-040 for Arduino
The rotary encoder can count the number of output pulses during the rotation in the positive and negative directions by rotation. The rotation count is not like a potentiometer. There is no limit to this rotation count. With the button on the rotary encoder, it can be reset to the initial state, that is, counting from 0 .
Working voltage: 5V
Number of pulses in one circle: 20
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