So I’m currently trying to setup my 3.5W Banggood Laser that uses 5V TTL and am at the process that I need to assign the correct pins. From my understanding and because I am using the latest dual endstop firmware for my MPCNC that using the M3 commands are not available and that I need to reassign the Fan 1 pin to pin 45 to send M106 SXX commands via a 5V TTL command. I am confused for two parts of that.
- When I am reassigning the pins in pins_RAMBO.h does it look like the screen shot that I have attached? Or do I need to make additional changes? In configuration_adv.h I have #define_spindle_laser commented out.
- If I'm wiring to pin 45 on the rambo board does the ground signal go to pin 31 aka Spindle_laser_enable_pin or do I need to find a ground for the TTL signal?
- I have taken into account the 10Hz fix in the Marlin.cpp code
- Laser being used