Cheers.
We are trying to use pins of the AUX 1 block corresponding to Ramps 1.4. The pin we intend to use is pin D57.
The objective is that by means of this pin we can control the fan of the temperature sink of the hotend (V6 hotend),
using as a reference the temperature reading made by the thermistor used by the hotend (T0).
The operating requirements are as follows:
If the temperature exceeds 40ºC, the fan automatically activates.
If the temperature drops below 40ºC, the fan automatically turns off.
The firmware used is MARLIN. and the objective is to avoid that while the machine isoperating but at rest,
have working mechanical parts.
WE HOPE TO RECEIVE YOUR HELP ...