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Reprap Stepper Motor Driver A4988/DRV8825 (Green)
Reprap Stepper Motor Driver A4988/DRV8825 (Green):
- A Reprap Stepper Motor Driver A4988/DRV8825 (Green) is a compact module designed to control stepper motors in 3D printers, CNC machines, and other precision devices.
- It translates digital control signals from a microcontroller into precise motor movements by regulating the current and stepping sequences.
- These drivers allow for fine control of motor steps, including microstepping for smoother motion and increased accuracy.
- They are typically mounted on a control board and connected to stepper motors, enabling precise positioning and movement essential for 3D printing and other applications.
Specifications:
- Driver Chip: Allegro A4988
- Logic Voltage: 3.3V or 5V
- Motor Voltage (VMOT): 8–35V DC
- Maximum Current Per Coil:
- Continuous: 1A (without heatsink)
- Peak: 2A (with adequate cooling)
- Microstepping Resolutions: Full, 1/2, 1/4, 1/8, 1/16 steps
- Control Inputs: STEP (step pulse), DIR (direction control), ENABLE (optional enable/disable)
- Step Pulse Frequency: Up to 500kHz
- Adjustable Current Limit: Set with an onboard potentiometer to match the motor's requirements.
- Protections:
- Overcurrent protection
- Thermal shutdown
- Undervoltage lockout
- Dimensions: Approx. 16mm × 11mm
- Form Factor: Small, interchangeable modules compatible with RepRap electronics like RAMPS.
- Heatsink Requirement: Essential for high-current applications.
- Motor Compatibility: Bipolar stepper motors (4, 6, or 8 wires).
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