I have a 12V system running ramps and Marlin firmware. I have an additional 24v power supply which I would like to drive my heated bed. I have a seven switch (thanks Traumflug) and limited knowledge of what to do next.
I believe I need to configure a pin to be switched on on the 12v RAMPS side, which will trigger the seven switch to allow current on the 24v side.
I don't know how to configure a pin, I'm sufficiently competent with C and C like libraries that I can probably hack it, but I would like to know if that's the best way forward? Is there like a configuration.h setting for the pin that says heating bed???
Then I just need to know everything else to make it work
Thanks in advance.