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    how did sudo command solved can't open device "/dev/ttyUSB0": Permission denied?

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    arduino linux nodemcu
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    • Abhay
      Abhay @arunksoman last edited by

      @arunksoman thanks for the steps
      but the thing is I don't have issues with port now, I was curious how it got resolved without going through the usual steps but by using sudo command.

      A 1 Reply Last reply Reply Quote 0
      • A
        arunksoman @Abhay last edited by arunksoman

        @Abhay What did you mean by usual steps?

        Abhay 1 Reply Last reply Reply Quote 0
        • Abhay
          Abhay @arunksoman last edited by

          @arunksoman by usual steps I meant adding our user to the group.
          ie the step
          sudo usermod -a -G dialout <username>

          A 1 Reply Last reply Reply Quote 0
          • A
            arunksoman @Abhay last edited by

            @Abhay I think most probably you might have done this earlier while installing Arduino.

            Abhay 1 Reply Last reply Reply Quote 0
            • Abhay
              Abhay @arunksoman last edited by

              @arunksoman thanks,
              I will look more into it. Thanks again

              1 Reply Last reply Reply Quote 0
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              • @zainmuhammed Can try capturing the GPS when the device is starting the loop instead after joining the LoRaWAN and see?

                You can put the GPS value on top of the loop or setup function.

                Also, what kind of gateway are you using? Is it configured okay, OTA is done?

                • read more
              • @salmanfaris Today I tried after connecting a 18650 cell,
                WhatsApp Image 2024-04-12 at 10.40.06_c7d1947e.jpg WhatsApp Image 2024-04-12 at 10.40.05_897b8bb6.jpg
                Data getting in console after integration of both lora and gps.
                3f45cfe7-0061-4328-8c55-ef0a73385203-image.png
                here you can see that GPS value is 0,0. also in my previous post you can see that GPS value is not reading.
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              • Hi @zainmuhammed ,

                Can you share the GPS and LoRa output when it’s working?

                Also can try capturing the GPS when the device is starting the loop instead after joining the LoRaWAN and see?

                Also make sure the device provides have enough to modules. The GPS need more power when you cold start.

                • read more
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