Installed Marlin 2.0 a while back when I upgraded to a Titan/Revo combo. Now my heatbreak fan isn’t kicking in automatically and I noticed that all the fans in configuration_adv.h are set to -1, disabling auto-start.
Unfortunately, I can’t figure out where the fan pin names are defined for this board. Is it in the pins_RAMPS.h or the pins_RAMPS_CREALITY.h or pins_RAMPS_13.h or…
Even once I dig around in there, the names aren’t descriptive of which headers are for which function.
Has anyone made a board diagram that actually includes the pin name/number of the headers?
The SV01 pin definitions can be found in the Marlin source code here:
Marlin/src/pins/ramps/pins_RAMPS.h
Page 17 of the SV01 user manual (eng.) contains a connection diagram.
In combination, it should be possible to identify the pins.
If not, you could compile Marlin with option ‘PINS_DEBUGGING’ enabled in Configuration_adv.h & identify the assumed fan pins using gcode M43 - Debug Pins.