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VOXL PWM AUX servo operate

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  • bensusanaB Offline
    bensusanaB Offline
    bensusana
    Contributor
    wrote on last edited by
    #1

    Re: VOXL PWM AUX output not working

    Hi guys
    im recently going through the same problem as mention above.

    just to be clear , i know that channel 5-6 (in pwm breakout board) are use used for gimbal , i want to know how can i use one of them to operate simple servo .

    i tried exactly the same as @Cole-Mathieu tried in his post with no successes.

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    • Chad SweetC Offline
      Chad SweetC Offline
      Chad Sweet
      ModalAI Team
      wrote on last edited by
      #2

      I don't think we have used a Flight Core PWM to control a servo at ModalAI

      Have you reviewed the PX4 docs? The Flight Core is a pretty standard PX4 flight controller, like a pixhawk

      https://docs.px4.io/main/en/peripherals/pwm_escs_and_servo.html#pwm-servos-and-escs-motor-controllers

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      • wilkinsafW Offline
        wilkinsafW Offline
        wilkinsaf
        ModalAI Team
        wrote on last edited by
        #3

        I know that it works as we have gotten them to work with fixed wing servos.

        However, this was not an RC passthrough but something the flight controller was in control of.
        What is your PWM_AUX_MIN1 and PWM_AUX_MAX1 set to? Does the PWM min and max match the actually min and max of the servo on your gimbal?

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        • wilkinsafW Offline
          wilkinsafW Offline
          wilkinsaf
          ModalAI Team
          wrote on last edited by
          #4

          Putting together some outline into our setup to post on here

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          • wilkinsafW Offline
            wilkinsafW Offline
            wilkinsaf
            ModalAI Team
            wrote on last edited by wilkinsaf
            #5

            @bensusana

            https://www.youtube.com/watch?v=fxfyrUW3EyA

            I should have said "Aux 1 mapped to channel 5 FOR QUAD COPTER LAYOUT" instead of "for VOXL Flight"

            but other than that let me know if you have any questions

            bensusanaB 1 Reply Last reply
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            • wilkinsafW wilkinsaf

              @bensusana

              https://www.youtube.com/watch?v=fxfyrUW3EyA

              I should have said "Aux 1 mapped to channel 5 FOR QUAD COPTER LAYOUT" instead of "for VOXL Flight"

              but other than that let me know if you have any questions

              bensusanaB Offline
              bensusanaB Offline
              bensusana
              Contributor
              wrote on last edited by
              #6

              @wilkinsaf first of all huge thanks for the effort of making this video 🙂 ,
              bottom line it worked !
              only after i reset to default all the parameters like you showed in the video , now we have to figure what was wrong in our parameters that prevent this from working ( we tried the same thing with no success ! ).

              now for next step we trying controls this servo through mavlink command without RC involved .

              again thank you , much appreciate.

              wilkinsafW 1 Reply Last reply
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              • bensusanaB bensusana

                @wilkinsaf first of all huge thanks for the effort of making this video 🙂 ,
                bottom line it worked !
                only after i reset to default all the parameters like you showed in the video , now we have to figure what was wrong in our parameters that prevent this from working ( we tried the same thing with no success ! ).

                now for next step we trying controls this servo through mavlink command without RC involved .

                again thank you , much appreciate.

                wilkinsafW Offline
                wilkinsafW Offline
                wilkinsaf
                ModalAI Team
                wrote on last edited by
                #7

                @bensusana absolutely. Feel free to email me if you need a bit more dedicated support andrew.wilkins@ascendengineer.com.

                We have a bit of experience with ModalAIs products

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