I'm trying to find out if there is already a built in way to enable a laser (via hwpwm) in trickle power mode while the machine is stationary. I have an inexpensive two watt laser which needs to be focused manually. It has a 12V power input and a 5V PWM input. I've setup a basic switch module to turn the 12V on (powering up the laser) and I'm using the default laser module to control the PWM input (just using a voltage divider for the unidirectional shift to 5V). It's working perfectly, but I'm unable to have the laser on trickle power except during G1/G2/etc moves. Is there something I'm missing? Is there a way to turn on the laser at low power without requiring movement?
I've considered adding another switch module that uses the same pin and the laser module, so I can enable it from there, but I'm not sure how the Smoothieboard will handle that potential conflict.