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    Duet 2 PT100 Daughter Board K THERMALCOUPLE reading 2000c

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    Duet Hardware and wiring
    thermocouple duet 2 wifi pt100 2000c
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    • freecharetteundefined
      freecharette
      last edited by

      I placed a 120 ohm resistor at pin 2 and 3 and get a reading of 49c the left or the right channel
      If i put in the K THERMALCOUPLE on pin 2 & 3 center pins i just get 2000c on the dashboard.
      At this point I have nothing connected to the Duet 2 wifi board just he PT100.
      just wonted to see if the board was working before i tear out the Ender 3 pro mainboard
      the daughter board is a 2 channel 4 pin Max 31865
      61xT836m4dL.AC_SL1001.jpg

      here is my config.g

      ; Heaters
      M308 S0 P"bedtemp" Y"thermistor" T100000 B4092 ; configure sensor 0 as thermistor on pin bedtemp
      M950 H0 C"bedheat" T0 ; create bed heater output on bedheat and map it to sensor
      M307 H0 B1 S1.00 ; enable bang-bang mode for the bed heater and set PWM limit
      M140 H0 ; map heated bed to heater 0
      M143 H0 S150 ; set temperature limit for heater 0 to 200C
      M308 S1 P"spi.cs2" Y"rtd-max31865" ; configure sensor 1 as thermocouple via CS pin spi.cs1 cs2 chan 2
      M950 H1 C"e0heat" T1 ; create nozzle heater output on e0heat and map it to sensor 1

      RepRapFirmware for Duet 2 WiFi/Ethernet FIRMWARE_VERSION: 3.01
      I just can't seem to get this to work
      If someone can direct to some possibilities.
      Thanks

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      • Phaedruxundefined
        Phaedrux Moderator
        last edited by

        So you have a PT100 board, but you're trying to connect a thermocouple? I'm confused by your post.

        Z-Bot CoreXY Build | Thingiverse Profile

        freecharetteundefined 1 Reply Last reply Reply Quote 0
        • freecharetteundefined
          freecharette @Phaedrux
          last edited by

          @Phaedrux
          Yes have I made a mistake I thought that the two were needed for the K thermalcouple & the pt100 daughterboard to work on the duet 2
          Maybe I have some terms mixed up.

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          • A Former User?
            A Former User
            last edited by

            if you have a k-type thermocouple, you need the thermocouple daugtherboard and not the pt100 daughterboard.

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            • Phaedruxundefined
              Phaedrux Moderator
              last edited by

              https://duet3d.dozuki.com/Wiki/PT100_temperature_sensor_daughter_board

              https://duet3d.dozuki.com/Wiki/Connecting_PT100_temperature_sensors

              https://duet3d.dozuki.com/Wiki/Thermocouple_daughter_board

              https://duet3d.dozuki.com/Wiki/Connecting_thermocouples

              Z-Bot CoreXY Build | Thingiverse Profile

              freecharetteundefined 1 Reply Last reply Reply Quote 0
              • freecharetteundefined
                freecharette @Phaedrux
                last edited by

                @Phaedrux
                Thank you

                1 Reply Last reply Reply Quote 0
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