Hmm....
The plot thickens...
The unit is kind of functioning, however when running through the MOSFET, it crashes after a few cycles (not many, maybe 5 - 20).
Because I'm running with the LED of the gate pin for the MOSFET, I can see the LED behaves strangely when it crashes, either flickering a bit, staying on continuously, or staying off. I should point out it would function correctly up until this point.
Voltage is fine, around 5v, however different power supplies seem to result in the same issues.
Odd, but no doubt common... I thought best to continue this thread?
Is this likely a stack thing, or a resistor pull-down thing (which I don't completely understand, but think I have right), or something else entirely?
Cheers, Mark.