5PCS lot KY-040 360 Degrees Rotary Switch Encoder Module with 15x13.5 mm Potentiometer Half Shaft Hole Knob Caps for Arduino
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5PCS lot KY-040 360 Degrees Rotary Switch Encoder Module with 15x13.5 mm Potentiometer Half Shaft Hole Knob Caps for Arduino

$2.39
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KY-040 Module: 360 degree rotary encoder module KY-040 FOR ARDUINO modulefor Arduino rotary encoder module KY-040Working voltage: 5VNumber of pulses in one circle: 20The 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 the 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 principle:An incremental encoder is a rotary sensor that converts rotational displacement into a series of digital pulse signals. These pulses are used to control the angular displacement. The angular displacement conversion in the Eltra encoder uses the principle of photoelectric scanning. The reading system is based on the rotation of the radial indexing plate #40; code wheel #41; which is composed of alternating light-transmissive windows and opaque windows, and is simultaneously illumina

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