Pololu A4988 Stepper Motor Driver Carrier

A4988 DMOS Microstepping Driver With Translator datasheet

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

Stepper Motor Logic - Forum

pinout - Forum

See Frankenso: prototyping area stepper board install - Forum