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Modbus / Re: Arduino Modbus, Complete, Documented and free

« on: March 23, 2014, 04:58:04 PM »

Hey HI!

Shilling, thank you for this awesome documentation, it works fine!
I can blink with diode on my Arduino Uno R3, but I have few question about this documentation and CNC.

I'm working on my first CNC machine and I'm newbie in this area, for this moment I have:
- Arduino Uno R3 - http://cdn.makezine.com/make/arduino/Arduino-callouts1.jpg
- 2xL298N driver for stepper motor - http://image.dhgate.com/albu_355579110_00-1.0x0/a35-l298n-stepper-motor-driver-board-robot.jpg
- 2xunipolar stepping motors MITSUMI M42SP-5P (from printers) - http://img441.imageshack.us/img441/1098/minip9251053.jpg
- Power supply for 12/24V;
- future CNC from wood.

Connection between Arduino|drivers|motors looks like on picture in attach.

I had already upload "firmware" for Arduino, but I can't get how to setup Mach3, because for connection one motor it took 4pins on Arduino. In the Config -> Ports and Pins -> Motor Outputs you can specify only 2pins.
Can anyone help with a link for good tutorial or documentation how to setup Mach3+ModBus+Arduino?
Or, maybe, someone can with understanding "How to work with Brain" when you are making CNC?

Thanks everyone for help!
Have a good day!)