GCode to set PWM output on a pin?

[ajfisher]

Howdy all.

Google fu doesn't appear to want to help me on this. I have a RAMPS board which I have set up to use one of the Servo Pins (pin 6) to send a PWM value out.

I have Marlin running on the arduino / RAMPS. It's the latest release version.

What I am trying to work out is how to use GCode to set the PWM value of the pin.

I naively assumed it would be something like `S## PIN_NO VALUE` or something similar but I can't turn anything up.

Cheers

Andrew

[Robert Powers]

See the code in Marlin in Marlin_main.c for M42 with an S modifier (ex. M42 S128)

I think we lifted something like that for the M3 code on the laser/mini-mill.

Cheers,

Bob

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[peter zwag]

Im also looking to have a out of filament switch which pauses printing. Anyone know how to do this?