This GRBL uses an ugly hack to control two motors unipolar steps as 28byj-48 and also supports a servo motor on pin 11 The motors (28byj-48) are connected to a controller card that uses the chip ...

This is a modified fork from ruizivo/GRBL-28byj-48-Servo. This modification implements all 3-axises XYZ to a 28BYJ-48 stepper motor. The motors (28byj-48) are connected to a controller card (Arduino ...