1、A small stepper motor drive module, drive two‑phase four‑wire stepping motor 2、Communicate with the host computer through TTL232 mode, easy and convenient to use. 3、Automatic acceleration and automatic deceleration programs in the module to ensure that the stepper motor does not lose step during the driving process. 4、Can control stepper motor, drive program‑controlled trolley, have stable and excellent performance. 5、Small in size and light in weight, convenient to carry and use at any time, very convenient and practical. Item Type: Stepper Motor Driver Board Material: PCB Model: HP240 Length Range: ±800000 pcs (number of punches of stepping motor at a time) Rotation Speed Range: 20-10000 pulses/sec (rotation speed of stepping motor) Acceleration Stages: 1-9 levels (the stepping motor has 9 stages to choose from) Drive Voltage: 7-25VDc Drive Current: <700mA Working Temperature: -40℃-65℃ Storage Temperature: -40℃-65℃ Product Size: Approx. 45 x 35 x 15mm / 1.8 x 1.4 x 0.6in 1 x Stepper Motor Driver Board