Stepper motor is different from general motor's biggest step motor is different from common motor's biggest stepper motor can well control the motor rotation Angle; Stepper motor is a kind of electrical pulses into angular displacement of the actuator. Popular point: when the stepper driver receives a pulse signal, it is driving a stepper motor according to set the direction of a fixed point (The step torque Angle)。 Can be controlled by controlling the pulse number of angular displacement, so as to achieve the purpose of accurate positioning; At the same time you can control the pulse frequency to control motor rotation speed and acceleration, so as to achieve the purpose of regulating.