HobbyCNC PRO Parallel Port Pinouts

Pin #Description Pin #Description
2X Direction 10Limit*
3X Step 11A Home*
4Y Direction 12X Home*
5Y Step13Y Home*
6Z Direction15Z Home*
7Z Step1, 14, 16, 17**
8A Direction18-25Ground
9A StepAll othersNot Connected
* The actual function of these pins is determined in the CAM software
** Pins 1, 14, 16 & 17 are made available via solder pads. Nothing is done to these lines on the PRO board. Straight from the D connector to the solder pads.

Pins 10, 11, 12, 13 and 15 are pulled up with a 10K resistor and are used for home/limit functions.  Consult your software as to the type of switches needed. (N.O. or N.C. types)

Pins 1, 14, 16 and 17 are not pulled up and are available as needed.  Our driver board plays no role other than to provide convenient access to these pins.

HobbyCNC EZ Parallel Port Pinouts

Pin #Description Pin #Description
2X Step 10Limit*
3X Direction 11Z Home*
4Y Step 12X Home*
5Y Direction13Y Home*
6Z Step18-25Ground
7Z DirectionAll othersNot Connected

Pins 10, 11, 12, 13 and 15 are pulled up with a 10K resistor (RN4) and are used for home/limit functions.  Consult your software as to the type of switches needed. (N.O. or N.C. types)  Limit switches are usually wired in a series as N.C. and the home switches are wired individually for that axis.

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