Big Easy Driver ROB-12859

Product Code:
£19.24 £16.03

Each Big Easy Driver can drive up to about 2A per phase of a bi-polar stepper motor.

It is a chopper microstepping driver which defaults to 16 step microstepping mode.

Big Easy Driver side view Big Easy Driver front view Big Easy Driver back view
Big Easy Driver side view

The Big Easy Driver, designed by Brian Schmalz is a stepper motor driver board for bi-polar stepper motors up to 2A/phase. It is based on the Allegro A4988 stepper driver chip. It’s the next version of the popular Easy Driver board.

It can take a maximum motor drive voltage of around 30V, and includes on-board 5V/3.3V regulation, so only one supply is necessary. Although this board should be able to run most systems without active cooling while operating at 1.4-1.7A/phase, a heatsink is required for loads approaching 2A/phase. You can find the recommended heatsink in the related items below.


  • Bi-polar Microstepping Driver
  • 2A/Phase Max
  • 1.4-1.7A/Phase w/o Heatsink
  • Max Motor Drive Voltage: 30V
  • On-board 5V/3.3V Regulation


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