• refer to reprap wiki page
  • blue line to digital pins
  • red and black lines to power pins VCC and GND
  • grey pins can leave it to float

Setup the mode

MODE0 MODE1 MODE2 Microstep Resolution
High High High 1/32 step
High High Low 1/8 step
High Low High 1/32 step
High Low Low Half step
Low High High 1/32 step
Low High Low 1/4 step
Low Low High 1/16 step
Low Low Low Full step


  • Reprap wiki page info. https://reprap.org/wiki/Pololu_stepper_driver_board#DRV8825