The DRV8825 unit is an interface board for the TI DRV8825 stepper motor driver, which supports microstepping. The layout has encoding and an interface that is almost identical to that of the A4988, allowing its use as a higher performance alternative in many applications.

Features:

• Simple step and direction control interface
• Six different step resolutions: full step, half step, 1/4 step, 1/8 step, 1/16 step, and 1/32 step
• Direct interface capability with 3.3V and 5V systems
• Protection against overheating, overvoltage, and overcurrent
• Short circuit protection and load detection
• 4-layer PCB, 2 oz copper for better heat dissipation
• Exposed solderable ground pad under the driver IC on the bottom side of the PCB
• Unit size, encoding, and interface compatible with A4988 drivers in many respects
• Adjustable current control for setting the maximum output current with a potentiometer
• Smart cutoff control that automatically selects the correct power decomposition mode
• Maximum supply voltage of 45V
• Integrated regulator (no need for external logic voltage supply)