I’ve been working on a project that requires the control of 256 steppers motors(!) Looking at the stepper examples, it seems you can drive a unipolar stepper with 2 wires and a darlington array.
The problem is the arduino’s throughput. It can address 512 outputs at about 42Hz from the tests I’ve done, which is cool, but it would never be able to manage all the timing stuff.
What I was thinking was to use a computer as an arduino rather than doing on the chip, but what I’d need then is 512 digital outputs from my computer. Anyone have any idea how I could do this?
I know it’s not exactly an arduino question but I’d be really grateful if anyone had any ideas or suggestions