A4988 Stepper Motor Driver Module For Arduino 3D Printer

1. A4988 driver board is widely used in 3D printers and small CNC machine tools
2. Simple step and direction control interface
3. Thermal protection, overcurrent protection, ground fault protection
4. Five different step resolutions: full step, half step, quarter step, step 8 and step 16
5. Adjustable current control allows you to set the maximum current output using a potentiometer
- Intelligent chopper control to automatically select the correct current decay mode (fast decay or slow decay)
- Over temperature shutdown, undervoltage lockout and cross current protection
- Automatic current decay mode detection / selection
- Internal UVLO
- mixed with slow current decay mode
- Synchronous rectification for low power consumption
- Current protection
- Thermal shutdown circuit
- 3.3 and 5 V compatible logic power supplies
- Thermal shutdown circuit
- Ground fault circuit
- Load short circuit protection
- Five optional step modes: Full, 1 / 2, 1 / 4, 1 / 8 and 1/16