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POLOLU DRV8825 STEPPER MOTOR DRIVER
CARRIER, HIGH CURRENT
USER’S GUIDE
USING THE DRIVER
Minimal wiring diagram for connecting a microcontroller to a
DRV8824/DRV8825 stepper motor driver carrier (full-step mode).
POWER CONNECTIONS
The driver requires a motor supply voltage of 8.2 – 45 V to be connected across
VMOT and GND. This supply should have appropriate decoupling capacitors close to
the board, and it should be capable of delivering the expected stepper motor current.
Warning: This carrier board uses low-ESR ceramic capacitors, which makes it
susceptible to destructive LC voltage spikes, especially when using power leads longer
than a few inches. Under the right conditions, these spikes can exceed the 45 V