About BY-1001 programmable control using domestic 51 main controller, domestic optocoupler optical isolation, by controlling the photoelectric switch or Hall proximity switch (reference price 10 yuan / branch) for any motor speed, the method is as follows:
Firstly, a card (the shape of the card is in the form of a sheet, and the motor shaft is L-shaped) is set on the motor leading shaft so that the card can rotate following the rotation of the motor, and the photoelectric switch or the Hall proximity switch and the card can be sensed. Distance, such as a 10mm Hall switch, fixes the Hall switch within 10mm of the rotating card. Each time the motor rotates, the card switches the hall to a signal. According to the frequency of the signal, any motor can be measured. Speed, if using BY-1001 scheme, accuracy and controllability are much higher than the encoder.