Duet 3 6HC - using temp sensor without mapping to a heater

Johnnie_W

Is it possible to use a temp sensor without having to map it to a heater?

I'm using 2 heater outs for cooling fans I built in the enclosure and want to use the temp sensor I connected to temp2.

M308 S2 P"temp2" Y"thermistor" T100000 B4138 ; configure sensor 2 as thermistor on pin temp2

fcwilt

You can use the Duet Object Model to access a temp sensor:

Here is where the reading for temp sensor 4 would be found:

sensors.analog[4].lastReading

So you could use the the Duet RRF Meta Commands (link ) to perform actions based on the temp sensor reading:

if sensors.analog[4].lastReading > 999999
  echo "THE PRINTER APPEARS TO BE ON FIRE"

Frederick

dc42

Is it possible to use a temp sensor without having to map it to a heater?

Yes. In RRF3 sensors are defined independently of heaters. You can display them in DWC if you click on Extras.