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    Mini IR Z-probe problem (no power from DuetWifi)

    Duet Hardware and wiring
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    • Nuffe
      Nuffe last edited by

      I just registered my account, but I have been reading though the threads while building my KosselXL with DuetWifi. I have Mini Height Sensor Board from dc42, and it is connected to Z Probe connector on DuetWifi. I have also read through https://miscsolutions.wordpress.com/mini-height-sensor-board/

      My problem is that the sensor does not react in any way when I power on the DuetWifi. When I measure the voltage on the sensor between the L1 inductor and ground test point, it is about 0.07V. The same can be measured directly from Z Probe connector. Should there be a constant 3.3V on that pin on DuetWifi, or can configuration affect it?
      I have two DuetWifi boards behaving identically.

      My config.g contains line M558 P1 X0 Y0 Z0 H5 F120 T6000

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      • dc42
        dc42 administrators last edited by

        As long as the green 3.3V LED on the Duet WiFi is illuminated, indicating that the 3.3V supply is present, there should be a constant 3.3V between the Z probe connector pins on the Duet WiFi that are labelled 3.3V and GND on the reverse of the board.

        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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        • Nuffe
          Nuffe last edited by

          Thanks for you fast reply!
          While looking at the wiring diagram to see where 3.3V led is exactly, the Z Probe connections started looking suspicious. I had those in my mind totally reversed. V on the left and IN on the right. Issue solved. Thank you, and sorry for unnecessary question.

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          • dc42
            dc42 administrators last edited by

            The Z probe connector was rotated between the pre-production and production boards, so perhaps you were following the wrong wiring diagram.

            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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