I wanted to confirm some of my suspicion on this particular matter. This is a part of a switching circuitry with a button. I derived this circuit from a circuit divider to make this part of the switch work under lower voltages (button tolerates <20V across). So the button enables the MOSFET switch. Yet I need to monitor the state of the button and thus have protected a uC inpt from the gate with a schottky diode.
I can measure gate voltage from the voltage divider on the planned uC input pin node. The idea of the shottky diode was to protect the input from those 'high' voltages but ofcrs could be measured on that node (currently floating).
Should I consider input protection (such as a zener) to limit the voltage on that pin ? Although there's potentially low currents there (due to reverse current of the diode).