Well,
The third temp sensor is for the second extruder.
You could hack the code to do it. Actually you could hack the code to do anything.
But do you really need two temp probes? Unless you want to operate the two beds
seperately, a single probe on one bed with both heatbeds connected to a single, say
solid state relay should do.
As long as the beds have near identical resistance with the same plate on them,
any heating on one would be duplicated on the other. But there would a difference.
There are spare analog connecters on AUX2. Don't know what it is connected to off hand
The third temp sensor is for the second extruder.
You could hack the code to do it. Actually you could hack the code to do anything.
But do you really need two temp probes? Unless you want to operate the two beds
seperately, a single probe on one bed with both heatbeds connected to a single, say
solid state relay should do.
As long as the beds have near identical resistance with the same plate on them,
any heating on one would be duplicated on the other. But there would a difference.
There are spare analog connecters on AUX2. Don't know what it is connected to off hand