forward and reverse operate of motors, flexibly control the direction of motor operate, and meet the needs of different mechanical applications. The motor speed can be adjusted as needed to achieve precise control, suitable for various occasions such as automatic doors, robots, and other equipment. Built in delay function, which can set the motor running time and shutdown interval, automatically cycle operate, and improve work efficiency. Equipped with a locked rotor protections function, it automatically cut off the power supply when the motor is abnormal or the load is too high, avoiding damage to the motor and controller and ensuring safe use. Package includes: 1pc Stepper Motor Driver Controller