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    Motor issues when running ESC calibration

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    • rdjarvisR
      rdjarvis @Alex Kushleyev
      last edited by

      @Alex-Kushleyev Screenshot 2024-04-17 113251.png

      We verified PX4 was not running.

      systemctl stop voxl-px4

      1 Reply Last reply Reply Quote 2
      • Alexander SaundersA
        Alexander Saunders @Alex Kushleyev
        last edited by

        @Alex-Kushleyev

        No worries. We also verified if the issue was with the particular param file and ran the command to upload a different one. No luck with that and we still receive the same error (Bus 12, ESC not detected, etc)

        Alex KushleyevA 1 Reply Last reply Reply Quote 1
        • Alex KushleyevA
          Alex Kushleyev ModalAI Team @Alexander Saunders
          last edited by

          @Alexander-Saunders

          Can you please try voxl-esc tools from dev branch on github? Instead of /usr/share/modalai/voxl-esc-tools

          Alex KushleyevA 1 Reply Last reply Reply Quote 0
          • Alex KushleyevA
            Alex Kushleyev ModalAI Team @Alex Kushleyev
            last edited by

            Also, which SDK are you using? i am surprised to see this issue.

            Also, can you please double check the ESC bootup sequence:

            • apply power
            • 4 blue leds flash quickly for 1 second, then turn off
            • 4 blue leds blink twice
            • motor makes a quick chirp (three tones based on the latest params that provided)
            rdjarvisR Alex KushleyevA 2 Replies Last reply Reply Quote 0
            • rdjarvisR
              rdjarvis @Alex Kushleyev
              last edited by

              @Alex-Kushleyev ESC gave

              4 LEDs quickly flashing
              4 LEDs flash 3 times
              Motor chirps

              rdjarvisR Alex KushleyevA 2 Replies Last reply Reply Quote 1
              • rdjarvisR
                rdjarvis @rdjarvis
                last edited by

                @rdjarvis Screenshot 2024-04-17 115253.png

                1 Reply Last reply Reply Quote 1
                • Alex KushleyevA
                  Alex Kushleyev ModalAI Team @Alex Kushleyev
                  last edited by

                  One more suggestion, it often helps to use a direct connection between the ESC and your linux PC and run the voxl-esc tools there. This way you can see the plots instantly during testing and also if there are some issues with communication to the ESC, you can always connect it to the PC and check the ESC that way.

                  Do you have a USB to serial adapter cable that plugs into the ESC <-> PC ?

                  rdjarvisR 1 Reply Last reply Reply Quote 0
                  • Alex KushleyevA
                    Alex Kushleyev ModalAI Team @rdjarvis
                    last edited by

                    @rdjarvis said in Motor issues when running ESC calibration:

                    @Alex-Kushleyev ESC gave

                    4 LEDs quickly flashing
                    4 LEDs flash 3 times
                    Motor chirps

                    OK that is good!

                    1 Reply Last reply Reply Quote 0
                    • rdjarvisR
                      rdjarvis @Alex Kushleyev
                      last edited by

                      @Alex-Kushleyev, yes we have the USB/Serial connector.

                      Alex KushleyevA 1 Reply Last reply Reply Quote 0
                      • Alex KushleyevA
                        Alex Kushleyev ModalAI Team @rdjarvis
                        last edited by

                        @rdjarvis , ok great. Lets take a step back and just make sure you can talk to the ESC from the PC.

                        I will test SDK 1.2.0 to make sure it works fine with voxl-esc tools with my esc.

                        rdjarvisR Alexander SaundersA 2 Replies Last reply Reply Quote 0
                        • rdjarvisR
                          rdjarvis @Alex Kushleyev
                          last edited by

                          @Alex-Kushleyev Copy all, thank you

                          1 Reply Last reply Reply Quote 0
                          • Alexander SaundersA
                            Alexander Saunders @Alex Kushleyev
                            last edited by

                            @Alex-Kushleyev

                            Also to confirm, I followed the README from dev branch to update.

                            Alex KushleyevA 1 Reply Last reply Reply Quote 0
                            • Alex KushleyevA
                              Alex Kushleyev ModalAI Team @Alexander Saunders
                              last edited by

                              @Alexander-Saunders , thank you for confirming. I see that you are using SDK 1.2.0, which is very recent, so it already has (almost) the latest voxl-esc tools.

                              I am in the process of testing the tools on voxl2 using SDK 1.2.0, please try to connect to your PC directly and this should properly detect your ESC.

                              rdjarvisR 1 Reply Last reply Reply Quote 0
                              • rdjarvisR
                                rdjarvis @Alex Kushleyev
                                last edited by

                                @Alex-Kushleyev
                                ssh'd into Linux PC.
                                Connected to ESC with USB to SERIAL
                                voxl2:/usr/share/modalai/voxl-esc-tools/voxl-esc-scan.py

                                received same error as Windows PC.

                                No ESCs detected

                                Alex KushleyevA 1 Reply Last reply Reply Quote 0
                                • Alex KushleyevA
                                  Alex Kushleyev ModalAI Team @rdjarvis
                                  last edited by

                                  @rdjarvis,

                                  What do you mean "ssh'd into Linux PC" ?

                                  I am suggesting to connect the ESC to a standalone Linux PC and run the voxl-esc-scan.py on the linux PC (not on VOXL2).

                                  Just wanted to clarify..

                                  I tested the SDK 1.2.0 and the tools are working fine, it seems.

                                  rdjarvisR 2 Replies Last reply Reply Quote 0
                                  • rdjarvisR
                                    rdjarvis @Alex Kushleyev
                                    last edited by

                                    @Alex-Kushleyev

                                    On the Linux PC we are directly connected to 4 pin JST on ESC to USB.

                                    I ssh'd into VOXL2 from the Linux PC terminal.

                                    I ran voxl-esc-scan.py in VOXL2 (same results) No ESCs detected.

                                    I ran same command in Linux terminal (not ssh'd into VOXL2) same results. No ESCs detected.

                                    This is including running same command in /usr/share/modalai/voxl-esc-tools/.voxl-esc-scan.py

                                    RDJ

                                    1 Reply Last reply Reply Quote 0
                                    • rdjarvisR
                                      rdjarvis @Alex Kushleyev
                                      last edited by

                                      @Alex-Kushleyev power is on the UAV and ESC gave proper Flashes/Tones.

                                      Alex KushleyevA 1 Reply Last reply Reply Quote 0
                                      • Alex KushleyevA
                                        Alex Kushleyev ModalAI Team @rdjarvis
                                        last edited by

                                        @rdjarvis , which serial to usb cable are you using? have you tested it with an ESC before? I am wondering if the RX/TX connections are correct and not swapped.

                                        Also, do you have any other Modalai ESC you can test just to make sure the cables are working?

                                        rdjarvisR 1 Reply Last reply Reply Quote 0
                                        • rdjarvisR
                                          rdjarvis @Alex Kushleyev
                                          last edited by rdjarvis

                                          @Alex-Kushleyev

                                          MCBL-00091-1
                                          USB to Serial UART Cable from ModalAI
                                          Both right out of the new bag.

                                          We have 2 of these. Tested both. Same results.

                                          Alex KushleyevA 1 Reply Last reply Reply Quote 0
                                          • Alex KushleyevA
                                            Alex Kushleyev ModalAI Team @rdjarvis
                                            last edited by Alex Kushleyev

                                            @rdjarvis , ok so just to clarify.. as soon as you uploaded the new params that I provided, the esc stopped communicating? Can you please check to make sure you did not modify the baud rate in the param file before uploading?

                                            rdjarvisR 2 Replies Last reply Reply Quote 0
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