The Big Easy Driver, designed by Brian Schmalz, is a stepper motor driver board for bi-polar stepper motors up to a max 2A/phase. It is based on the Allegro A4988 stepper driver chip. It's the next version of the popular Easy Driver board. Each Big Easy Driver can drive up to a max of 2A per phase of a bi-polar stepper motor. It is a chopper microstepping driver which defaults to 16 step microstepping mode. 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. Note: This product is a collaboration with Brian Schmalz. A portion of each sales goes back to him for product support and continued development. Features: * 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 Documents: * Schematic * Eagle Files * Hookup Guide * Datasheet (A4988) * Design Site * GitHub https://elecena.pl/product/5023861/big-easy-driver 2015-02-05 https://elecena.pl/product/5023861/big-easy-driver 2015-06-19 https://elecena.pl/product/5023861/big-easy-driver 2015-06-23 https://elecena.pl/product/5023861/big-easy-driver 2015-11-30 https://elecena.pl/product/5023861/big-easy-driver 2015-12-01 https://elecena.pl/product/5023861/big-easy-driver 2016-04-02 https://elecena.pl/product/5023861/big-easy-driver 2016-04-04 https://elecena.pl/product/5023861/big-easy-driver 2016-11-25 https://elecena.pl/product/5023861/big-easy-driver 2016-11-29 https://elecena.pl/product/5023861/big-easy-driver 2016-12-09 https://elecena.pl/product/5023861/big-easy-driver 2016-12-14 https://elecena.pl/product/5023861/big-easy-driver 2017-03-31 https://elecena.pl/product/5023861/big-easy-driver 2017-04-06 https://elecena.pl/product/5023861/big-easy-driver 2017-11-24 https://elecena.pl/product/5023861/big-easy-driver 2017-11-28 https://elecena.pl/product/5023861/big-easy-driver 2017-12-08 https://elecena.pl/product/5023861/big-easy-driver 2017-12-16 https://elecena.pl/product/5023861/big-easy-driver 2018-05-05 https://elecena.pl/product/5023861/big-easy-driver 2018-05-11 https://elecena.pl/product/5023861/big-easy-driver 2018-05-15 https://elecena.pl/product/5023861/big-easy-driver 2018-11-21 https://elecena.pl/product/5023861/big-easy-driver 2018-11-27 https://elecena.pl/product/5023861/big-easy-driver 2019-03-15 https://elecena.pl/product/5023861/big-easy-driver 2019-03-19 https://elecena.pl/product/5023861/big-easy-driver 2019-07-04 https://elecena.pl/product/5023861/big-easy-driver 2019-07-09 https://elecena.pl/product/5023861/big-easy-driver 2019-11-29 https://elecena.pl/product/5023861/big-easy-driver 2019-12-03 https://elecena.pl/product/5023861/big-easy-driver 2022-02-21 https://elecena.pl/product/5023861/big-easy-driver 2025-03-24 https://elecena.pl/product/5023861/big-easy-driver 2025-04-12 https://elecena.pl/product/5023861/big-easy-driver 2025-04-16