PS-ON activates automatically without instructions
I have troubles with the PS-ON option on a ramps1.4 board: the pin go on high value about 10 minutes after powering the arduino.
It seems to be related to the "deactivate steppers after a period of inactivity of 360s" option, i'm not good at c/c++ code reading (i am a mechanical designer), so i'm unable to find the code line which is responsible of this pin to get high after a certain period of time.
I really need to have a low state on my printer, I work at 35V, which can cause fire (8 extruders, high mass moving on x/y axes, and i use a ball screw on the z axis).
so, if you have an idea about how to fix this, i am really interested.