http://www.pololu.com/product/1182

http://www.pololu.com/file/download/a4988_DMOS_microstepping_driver_with_translator.pdf?file_id=0J450

Use a jumper or wire to connect SLEEP with RESET

For first test, leave ENABLE disconnected. Once tested, connect stepper enable to rusEFI 'stepper enable' pin

We do not have our own add-on board for a4988, we use ones from eBay like "stepper motor driver A4988 with Heat sinks"

![Stepper Motor Driver](Images/stepper_motor_driver.jpg)

http://rusefi.com/forum/viewtopic.php?f=5&t=767

pinout: http://rusefi.com/forum/viewtopic.php?f=5&t=767&start=30#p17671

See http://rusefi.com/forum/viewtopic.php?f=4&t=1161