Touch probe woe's

[JohnHaine]

These probes are basically to the original Renishaw design, which in effect have a pair of contacts that are closed before triggered and open when the probe moves the slightest amount. So this is the opposite logic to a touch plate that is grounded on touch. The probe incorporates an inverter so the output is active low.

I have the same probe that I use with Mach3 on a 5V BoB supplied by 5V from a USB wall wart - the probe connector is basically USB-C and I assume the electronics is designed for a 5V supply so I'd be wary about connecting the output to a higher voltage. If you can change the sense of the probe signal in your config, the easiest thing would be to just drive the gate of your MOSFET from the probe output and have a pullup to the Gecko +ve supply (which may be internal anyway). I'd just use a standard logic level MOSFET - or just an NPN transistor. The probes work great by the way.