Hope someone can shed some light on this. I plugged in a laser (The TTL/PWM pin and a ground) to the FAN1 port on mini rambo. 12V power is going directly into the laser and is not coming from the mini rambo. Turning it on the laser was always 100% and adjusting FAN1 speed from the LCD did not do anything. Is it supposed to be ON like this at full S255 or 100%? I have a small display on the laser that tells me as well that it is indeed getting 100% from FAN1 port without me sending any GCODE.
My firmware currently is the default ryan provides for the mini rambo plus the shop LCD controller.
Laser accepts TTL/PWM 3.3v-12V.
The TTL pin is coming out of this board and going into mini Rambo FAN1 port. Am I doing something wrong?