This Kard is based on the Big Easy Driver Stepper Motor Driver http://www.schmalzhaus.com/BigEasyDriver/ it allows the Quick control a bi-polar stepper motors up to 2A/phase using the four rail pins for the slot into which it is inserted.

kardbigeasy_schematic.zip

Port Pin Map

Kard GPIO PinREV CREV C1REV DREV F
0 Step Step Step Step
1 Dir Dir Dir Dir
2 !Enable !Enable !Enable !Enable
3 Sleep Sleep MS1 MS1
4 MS3 MS2 MS2 MS2

Related Links

diy-microstepping-motor-driver based on the A3979

1-Axis stepper driver based on the A3979

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