I have a Duet 2 Wifi running off 24v and would like to connect a fan to P2 to cool the board when the MCU temp gets above 45 degrees. Is this as simple as connecting the fan (a 2 wire 24v fan) to P2? If so, what gcode command do I use to monitor the MCU temp so it knows when to come on?
I have read some posts that talk about having to use a resistor, but am confused about this as the part cooling and heater fans don't need one to operate?