Controlling stepper motor over I2C

Other Hardware General Electronics
1

Hello guys,
can anyone answer my question:

Is it possible for Arduino Uno through MCP23017 to control 4 stepper motors(in sync) (if each stepper have sparkfun easyDriver board attached) ?

2

Should work OK. But given the price and complexity it would be simpler to buy an off-the-shelf RAMPS board and another Uno (example combo, but a bit overkill) if you're finding yourself short on IO pins. Communication between your Uno and this RAMPS combo would then be done using standard GCODE over serial.

3

Yes it will work fine.
However I disagree about this being expensive and complex.

4

Grumpy_Mike:
However I disagree about this being expensive and complex.

I was referring to the RAMPS board and being able to easily mount the stepper drivers / connect the steppers to it.