I've been working on the driver for the next CNC, V3.
This one should be able to drive bigger motors up to about 2.5 Amps per coil, while providing current limiting.
It's features shold be the following:
- wave, full and halfstepping selectable in software
- I2C and step/dir/enable interface available on board
- home sensors connectors
Below is an iamge of the PCB I layed out: