| Pin | Name | Function |
|---|---|---|
| 1 | ENABLE | Active LOW - enables motor outputs |
| 2 | MS1 | Microstep resolution select bit 1 |
| 3 | MS2 | Microstep resolution select bit 2 |
| 4 | MS3 | Microstep resolution select bit 3 |
| 5 | RESET | Active LOW - resets driver (tie to SLEEP for normal use) |
| 6 | SLEEP | Active LOW - puts driver in low-power sleep mode |
| 7 | STEP | Rising edge advances motor one (micro)step |
| 8 | DIR | Sets rotation direction |
| 9 | VMOT | Motor power supply, 8V-35V |
| 10 | GND | Motor supply ground |
| 11 | 1B | Stepper coil 1 output |
| 12 | 1A | Stepper coil 1 output |
| 13 | 2A | Stepper coil 2 output |
| 14 | 2B | Stepper coil 2 output |
| 15 | GND | Logic ground |
| 16 | VDD | Logic supply, 3-5.5V |
Summary
Microstepping bipolar stepper motor driver module. Handles current regulation and step sequencing internally — only needs STEP and DIR pulses from a microcontroller, standard in 3D printers, CNC, and camera sliders.
- Motor supply (VMOT): 8V - 35V
- Logic supply (VDD): 3V - 5.5V
- Max current per phase: 1A continuous, 2A peak (with heatsink)
- Microstepping: Full, 1/2, 1/4, 1/8, 1/16 step