1. First of all, the three wires of a plug are handle control wires, which are thick yellow, blue and green, two red wires, and 1 black wire.

2. Secondly, the linear Hall of magnetic field lines is induced, and the three lines are respectively connected with the three pins of the Hall, namely red, black and green, namely positive electrode, negative electrode and signal.

3. Finally, when Hall senses the magnetic signal, it will send a signal to the controller to control the motor speed.