@dc42 I'm trying to configure it, I used the commands:
M950 S0 C"exp.heater4" to map the heater4 pin for the servo indexed 0,
I've attached the GND and the exp.heater pins to a command port of a Mosfet but if I lunch the command
M280 P0 S100000
To try to give a 100000 micro second (a second) pulse just to try nothing happens and the Mosfet doesn't trigger....so I'm afraid that the Mosfet doesn't trigger with the high value given by the remapped heater4....I need a 12V PWM output to trigger the mosfet, I think I could use a PWM fan, could I? Honestly I've tried to read the documentation for how to comand a PWM fan via gcode but I didn't understand so much....I've found this example:
M950 F2 C"!Fan2+exp.pb6" Q25000 ; fan 2 is a 4-wire PWM fan so invert it, use high PWM frequency, tacho connected to PB6 on expansion connector
But I can't understand because looking at the wiring diagram FAN2 isn't a 4 pin
And I don't understand why I had to use an expansion pin too....so as you can see I'm a looooooooooooooot confusing and I'd better not to go with "trial & error" because I don't want to burn the board....the main question is: can I use the FAN2 2 pins to trigger the mosfet with 12vdc and start, modulate the PWM, and stop the FAN (led stripe) via gcode? In case how?
Thanks a lot!