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    Converting the Duet WiFi to use an external antenna

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    Duet Hardware and wiring
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    • garyd9undefined
      garyd9
      last edited by

      Large differences is wifi signal strength are normal for differing wifi devices. Each one "hears" the other differently. This can be due so many different factors it's impractical to enumerate. Usually, it's different radio power, different antennas, or different propagation paths.

      In your case, it appears the router has "bigger ears" (better antenna.)

      "I'm not saying that you are wrong - I'm just trying to fit it into my real world simulated experience."

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      • fmaundefined
        fma
        last edited by

        Ok, I see.

        But why switching from the default ESP (no antenna) to the new one (6dB gain antenna) didn't change that much the signal strength returned by the Duet?

        I don't have signal values given by the router with the default ESP (didn't think to read it at the time); so I don't know if it really changed. But the thing is I know have a much better connection: transfers are very fast and I don't get any disconnection anymore.

        Frédéric

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        • dc42undefined
          dc42 administrators
          last edited by

          If M122 is telling you that the signal strength is -73dBm now, that is already very low. If it was even lower before, that would explain the disconnections you had.

          Which wifi channel is your router set to? Does the reported signal strength vary if you switch between channels 1, 6 and 11?

          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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          • fmaundefined
            fma
            last edited by

            Yes, it is low. But, as said, real transmissions work much better and faster, now. And no more disconnection.

            I will make tests with different channels (I think I'm on channel 1 - the router is in auto and chose this one).

            Frédéric

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            • parovoZZundefined
              parovoZZ
              last edited by

              Hi!

              I have WiFi signal strength -61dBm in three meters from the router. The ESP-07 has a very very weak antenna ((
              I will change to ESP-07S or connect external to ESP-07.
              Laptop, iPhone, Nokia etc. - everything works fine.

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              • fmaundefined
                fma
                last edited by

                I used a wifi analyser on my phone, and noticed that there where 3 other AP on channel 1. In fact, it depends where I am in the house, and on the AP side, they are not detected. So the AP chose this channel. But on the printer side, they where as powerfull as my AP!

                I moved to channel 3, unused by other wifi AP, and I now have -66dB strength…

                Frédéric

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                • ephemerisundefined
                  ephemeris
                  last edited by

                  Will this be available as a build option?

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                  • martinsundefined
                    martins
                    last edited by

                    ESP-07S sold out in RS-online 🙂 how thats possible

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                    • S1lencerundefined
                      S1lencer
                      last edited by

                      Hi, i have a problem since i changed the Module.
                      I can only connect to the Duet Wifi in Accesspoint mode. If i change it to M552S1 it only says: Wifi reported error: no known networks found.
                      The wifi is defenitly present.
                      Did flash the right firmware files main as also the Wifiserver one.
                      Running 1.21

                      Anyone a clue why this could be?

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                      • S1lencerundefined
                        S1lencer
                        last edited by

                        Got the Problem solved.
                        David, i think the firmware 1.21 has a problem with loading the M587 with the Router data from the config.g to the remembered list.
                        Got my problem solved with Repetier host, did send the M587 with ssid and password via g-code console.

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                        • dc42undefined
                          dc42 administrators
                          last edited by

                          @S1lencer:

                          Got the Problem solved.
                          David, i think the firmware 1.21 has a problem with loading the M587 with the Router data from the config.g to the remembered list.
                          Got my problem solved with Repetier host, did send the M587 with ssid and password via g-code console.

                          How did you send the M587 command originally?

                          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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                          • S1lencerundefined
                            S1lencer
                            last edited by

                            Via the config script

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                            • dc42undefined
                              dc42 administrators
                              last edited by

                              Sending M587 in config.g isn't going to work, because the wifi module doesn't get enabled until the end of running config.g. That's why I suggest using a macro to send those commands.

                              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

                              1 Reply Last reply Reply Quote 1
                              • S1lencerundefined
                                S1lencer
                                last edited by

                                Ok for the next time i will do that.
                                Should be mentioned in the Wiki.

                                1 Reply Last reply Reply Quote 1
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