The motor controller is a device that can make the motor complete the required movement in a predetermined control mode, and adjust it to the state required by the main control system in the shortest time and with the least energy consumption. Its typical controls include motor start and stop, steering, speed, angle/position, torque/force, etc. It also has communication, protection and status monitoring functions. Motor control technology is widely used in power tools, garden tools, industrial control fields, electric vehicles, etc.