Big Easy Driver Stepper Motor Driver

Features:

• High-current Stepper Motor controller (max 2A / phase)
• For Bi-polar Stepper motors
• Chipset: A4988
• Max Input Power Supply: 30V
• Supports 3.3V and 5V logic levels (for 3.3V, solder 5V/3V closed on the board)
• Variable microstepping resolution via MS1, MS2 and MS3 pins
• Resolution options:
• full step
• half step
• quarter step
• eighth steps
• sixteenth steps (default)
• Variable current control
• Current range: 
• Without Heatsink: 1.4A - 1.7A/Phase
• With Heatsink: 1.7A - 2A/Phase
• At high speeds, higher torque can be achieved by raising the Input Power Supply voltage that goes to the motor.
• Sleep and enable pins
• Arduino & Raspberry Pi Compatible