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    Solved Duet3 6HC RC-Servo on io port (What am I missing?)

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    • MaxGyver
      MaxGyver last edited by MaxGyver

      Hey all,

      I would like to controll a RC-servo that is connected to the IO_0 port on my Duet3 6HC.

      The round Signal and 5V lines of the servo are connected to GND, io0.out and 5V_Ext of the io_0 port. But I have the impression that the servo has no power at all...

      in the config.g i have added the following code:

      M950 S0 C"io0.out"
      M280 P0 S0

      I am using RRF 3.2-beta1 with SBC

      What am I missing here ?

      Cheers Max

      droftarts 2 Replies Last reply Reply Quote 0
      • droftarts
        droftarts administrators @MaxGyver last edited by

        @MaxGyver Most servos need 5V PWM signal. I think io0.out is 3.3V. Why not use the dedicated 5V PWM output of out9?
        2eb760c4-15e8-49a9-80a0-34c2ed68bf3a-image.png

        Ian

        Cartesian bed-slinger with Duet 3 Mini 5+ WiFi : RRP Fisher Delta v1 with Duet 2 Maestro : TronXY X5S with Duet 2 Wifi (in progress)

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        • dc42
          dc42 administrators last edited by

          Which firmware version are you using? Until recently, IO0 was only available for connecting a PanelDue.

          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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          • droftarts
            droftarts administrators @MaxGyver last edited by

            @MaxGyver Also, do you have a jumper on Internal 5V enable? See https://duet3d.dozuki.com/Wiki/Duet_3_Mainboard_6HC_Hardware_Overview#Section_5V

            Ian

            Cartesian bed-slinger with Duet 3 Mini 5+ WiFi : RRP Fisher Delta v1 with Duet 2 Maestro : TronXY X5S with Duet 2 Wifi (in progress)

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            • MaxGyver
              MaxGyver last edited by

              @droftarts: I would like to use more than one Servo and I use the default jumper configuration with jumpers on the "Int 5V EN" and "5V -> SBC"

              alt text

              @dc42 I am using RRF version 3.2-beta1. I have also tried to connect to other IO-ports

              Thanks a lot!
              Max

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              • achrn
                achrn last edited by

                https://duet3d.dozuki.com/Wiki/Duet_3_Mainboard_6HC_Hardware_Overview says io0 doesn't do PWM.

                4, 5 and 7 do PWM.

                droftarts 1 Reply Last reply Reply Quote 2
                • droftarts
                  droftarts administrators @achrn last edited by

                  @achrn said in Duet3 6HC RC-Servo on io port (What am I missing?):

                  io0 doesn't do PWM.
                  4, 5 and 7 do PWM.

                  @MaxGyver That too!

                  Ian

                  Cartesian bed-slinger with Duet 3 Mini 5+ WiFi : RRP Fisher Delta v1 with Duet 2 Maestro : TronXY X5S with Duet 2 Wifi (in progress)

                  1 Reply Last reply Reply Quote 0
                  • MaxGyver
                    MaxGyver last edited by MaxGyver

                    @achrn said in Duet3 6HC RC-Servo on io port (What am I missing?):

                    https://duet3d.dozuki.com/Wiki/Duet_3_Mainboard_6HC_Hardware_Overview says io0 doesn't do PWM.

                    4, 5 and 7 do PWM.

                    Yep! thats what I have missed!

                    Cheers,
                    Max

                    1 Reply Last reply Reply Quote 0
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