Bed and/or hot end over temp signal
Is there currently a usable DIO or other physical signal that is trigger by a hot end or bend over temp?
I’m looking to add a secondary safety system to my printer that cuts main power if there is a thermal runaway.
I’d like to use the signals coming from the Duet as part of the system if they’re accessible.
In RepRapFirmware 3 you can do that, by defining a GPIO pin as a thermostatically-controlled fan, set to turn on if a defined temperature is exceeded.
However, IMO it would be safer to use an independent temperature sensor.
Thanks for the quick reply.
My thought was to bring in the Duet pin and a secondary pin and OR them into a master shutoff.
@dc42 <quote>defining a GPIO pin as a thermostatically-controlled fan</quote>
Any insight into how to define this? It's not clear to me. Thanks.
@ajlapp Looks like M42 is the correct direction