We are currently developing a very cool CNC shield for Arduino running the GRBL firmware. This should be on the web store in the next 2 weeks.
Keep your eyes open and let me know if you want more info or are just curious.
Features will include the following:
- Buffered connection to driving circuits
- Opto-isolated connections to limit switches/probes and buttons
- Well worked out layout for connecting all the wiring
- LED notification of Limit switch and probe events
One of the major benefits is isolating the Arduino from any external interference from wiring running together through the system, Arduino’s are particularly sensitive for external “Noise” also called EMF.
This shield should be very reasonably priced as well. I have been using it now for a while and it is awesome!