Design of photoelectric encoder detector based on Arduino development environmentⅡ！

overall design
The detector is mainly composed of a conditioning circuit, an Arduino control board and a liquid crystal display circuit. CLKA and CLKB are two encoded signals with phase difference of 90°output from the photoelectric encoder. The conditioning circuit is used to perform signal processing such as shaping filter on the two signals, and finally sent to the Arduino control board. The Arduino control board is used to count the number of optical encoder pulses, and to distinguish between positive and negative pulse signals. The liquid crystal display circuit is used to display the detected parameters, and at the same time select and control different types of photoelectric encoders.
 hardware part design
   conditioning circuit
The signal conditioning circuit is used for detecting the conditioning of the signal, mainly by processing the AC signal to be tested, filtering, amplifying, strobing, virtual value transformation clipping, etc., and sending it to the microcontroller for measurement.

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