The motor controller will be connected to the power supply, which may be battery or mains power. There will also be some circuits that can input or output (digital or analog) signals. The most widely used small motors include DC motors, brushless DC motors and stepper motors. The main difference between stepping motor, DC motor and brushless DC motor is their driving mode.

CNC programmable stepper motor controller can form a complete stepper motor control system with stepper motor driver and stepper motor, and can control three stepper motors to run at different times. This controller uses computer-based programming language, and has input, output, count and other instructions. It has the characteristics of flexible programming and wide application range, and can be widely used in various control automation fields.