====== QKI-STP200: One Channel micro-step driver 2A per phase Big Easy Kard for KardIO Slot ======

Based on Brian Schmalz [[http://www.schmalzhaus.com/BigEasyDriver/|Big Easy Driver]], the PONTECH Big Easy Kard(tm) expands on the idea by adding a digital pot to allow for dynamic control of the stepper drive current.

** Due to a large component on the this Kard, it will not easily fit into Kard(tm) Slot 3

{{:quick:bigeasy_kard_bottom_350x250.jpg?direct|BigEasy Kard Bottom}} {{:quick:bigeasy_kard_top_350x250.jpg?direct|BigEasy Kard Top}}

^Kard Slot^Name^I/O^Description^
|gpio 0|STEP|I|Pulse for one micro step max speed 1us high, 1us low|
|gpio 1|DIRECTION|I|Clockwise / Counterclockwise Operation|
|gpio 2|ENABLE|I| 0 = Enabled, 1 = Disabled|
|gpio 3|SLEEP|I|0 = Put the driver in to low power mode, 1 = Awake|
|gpio 4|MS3|I| 0 = 1/16 micro-stepping, 1 = 1/8 micro-stepping |
|RAIL 0|COIL A+|O|COIL A+|
|RAIL 1|COIL B+|O|COIL B+|
|RAIL 2|COIL B-|O|COIL B-|
|RAIL 3|COIL A-|O|COIL A-|


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