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    Additional (4th) Thermistor and External Mosfet on Duet 2 Wifi

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    • MacNiteundefined
      MacNite
      last edited by MacNite

      Hey Guys,

      I want für use an additional Thermistor on my Duet 2 WiFi (RRF3). I already use all 3 available (Dual Extruder and Bed) and want to use an additional for Chamber Temperature Control.

      If I got it correctly I have to connect a resistor between 3.3V and Thermistor 3 (Expansion Header). The Thermistor has to be connected between VSSA and Thermistor 3.

      The value of the resistor should be 4700 Ohm but in theory the value should not matter because I can Set the value with M308 R... in Firmware, correct?
      I Plan to measure Chamber temps <60°C with a 100K Thermistor.

      Greets
      Max

      CorEssentials on GitHub | Instructables Profile | Thingiverse Profile

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      • dc42undefined
        dc42 administrators @MacNite
        last edited by

        @MacNite said in Additional (4th) Thermistor on Duet 2 Wifi:

        If I got it correctly I have to connect a resistor between 3.3V and Thermistor 3 (Expansion Header). The Thermistor has to be connected between VSSA and Thermistor 3.

        Connect the resistor between ADVREF and Thermistor 3. The rest is correct.

        Duet WiFi hardware designer and firmware engineer
        Please do not ask me for Duet support via PM or email, use the forum
        http://www.escher3d.com, https://miscsolutions.wordpress.com

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        • MacNiteundefined
          MacNite
          last edited by

          Thank you!
          I'll do that.

          CorEssentials on GitHub | Instructables Profile | Thingiverse Profile

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