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    12V on the 5V rail

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    Duet Hardware and wiring
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    • Haggan90undefined
      Haggan90 @A Former User
      last edited by

      @bearer Ok!
      Yeah, It is a V1.03 board.
      Is it possible that the Wifi Module and the SD card reader is OK or do I have to change one/both of them as well?

      A Former User? 1 Reply Last reply Reply Quote 0
      • A Former User?
        A Former User @Haggan90
        last edited by

        @Haggan90 as I said I'm not sure, head isn't quite on the right way but I'm guessing you essentially fed -5v into the 3.3v output of the regulator which it didn't like.

        odds are if nothing else got warm the damage is contained, but as i said, remove the wrong regulator and test it with an external supply and you'll have the answer.

        1 Reply Last reply Reply Quote 0
        • A Former User?
          A Former User @A Former User
          last edited by

          @bearer said in 12V on the 5V rail:

          but should be compatible with AP7361C-33ER-13

          @Haggan90 just clicked in my head the AP7361C doesn't specify if the tab is connected to v-out or gnd or anything at all; so I can't say for sure if it works.

          TC2117-3.3VDBTR is the full partno from the 1.03 schematic.

          Haggan90undefined 1 Reply Last reply Reply Quote 0
          • Haggan90undefined
            Haggan90 @A Former User
            last edited by Haggan90

            @bearer said in 12V on the 5V rail:

            TC2117-3.3VDBTR

            TC2117.PNG

            IS this the correct one?
            https://www.digikey.se/product-detail/sv/microchip-technology/TC2117-3-3VDBTR/TC2117-3-3VDBCT-ND/7065613

            1 Reply Last reply Reply Quote 0
            • A Former User?
              A Former User
              last edited by A Former User

              has the same manufacturer part number as on the schematic at least, so thats about as sure as I can get.

              "Tillverkarens artikelnummer TC2117-3.3VDBTR"

              (the key to decoding the part numbers are usually towards the end of the datasheets, helps decode the various letters and numbers)

              Haggan90undefined 1 Reply Last reply Reply Quote 0
              • Haggan90undefined
                Haggan90 @A Former User
                last edited by

                @bearer Hi!

                I have now changed the U2 and I can connect to the board via USB 😃
                It seems like maybe the WiFi module is broken, but is there any way I can check that over YAT?

                1 Reply Last reply Reply Quote 0
                • A Former User?
                  A Former User
                  last edited by

                  just follow the getting started guide to set up wifi again, if it responds to M552 and connects you're good.

                  Haggan90undefined 1 Reply Last reply Reply Quote 0
                  • Haggan90undefined
                    Haggan90 @A Former User
                    last edited by

                    @bearer ok!
                    The blue LED does not light up on start, is that a bad thing?

                    Haggan90undefined 1 Reply Last reply Reply Quote 0
                    • Haggan90undefined
                      Haggan90 @Haggan90
                      last edited by

                      @Haggan90
                      Ok, it seems like I can't get the Wifi module into idle mode.
                      Also, I do belive it get's a bit warm, not hot but warm.

                      M115
                      FIRMWARE_NAME: RepRapFirmware for Duet 2 WiFi/Ethernet FIRMWARE_VERSION: 2.05.1 ELECTRONICS: Duet WiFi 1.02 or later FIRMWARE_DATE: 2020-02-09b1<LF>ok<LF>
                      M552 S-1
                      WiFi module stopped<LF>ok<LF>
                      M552 
                      WiFi module is disabled<LF>ok<LF>
                      M552 S0
                      ok<LF>
                      M552
                      WiFi module is being started<LF>ok<LF>
                      M552 S0
                      ok<LF>
                      M552 S0
                      ok<LF>
                      M552
                      WiFi module is being started<LF>ok<LF>
                      M587
                      M587: Failed to retrieve network list<LF>ok<LF>
                      
                      Phaedruxundefined 1 Reply Last reply Reply Quote 0
                      • Phaedruxundefined
                        Phaedrux Moderator @Haggan90
                        last edited by

                        @Haggan90 try deleting all saved wifi networks with M588 S"*" (That is, using an asterix for the network name), then re-adding it with M587. For example, M587 S"networkname" P"password".

                        Z-Bot CoreXY Build | Thingiverse Profile

                        Haggan90undefined 2 Replies Last reply Reply Quote 0
                        • Haggan90undefined
                          Haggan90 @Phaedrux
                          last edited by

                          @Phaedrux Hi, I get this:

                          M588 S"*"
                          M588: Failed to reset the WiFi module to factory settings<LF>ok<LF>
                          
                          1 Reply Last reply Reply Quote 0
                          • Haggan90undefined
                            Haggan90 @Phaedrux
                            last edited by

                            @Phaedrux The SD-Card seems to be fine.
                            Do I need a hot air desoldering station to change the Wifi Module? And, what would I need to do after I've changed it?
                            This is what I get when sending M21.

                            M21
                            SDHC card mounted in slot 0, capacity 3.98Gb<LF>ok<LF>
                            
                            A Former User? 1 Reply Last reply Reply Quote 0
                            • A Former User?
                              A Former User @Haggan90
                              last edited by A Former User

                              @Haggan90 said in 12V on the 5V rail:

                              Do I need a hot air desoldering station to change the Wifi Module?

                              A good preheating and some quickchip or similar 138C-ish melting point solder might to the trick; but most likely "yes".

                              edit: oh, and after all you need to do is run M997 S1, presuming the wifi firmware file is in the /sys folder on the SD card.

                              Haggan90undefined 1 Reply Last reply Reply Quote 1
                              • Haggan90undefined
                                Haggan90 @A Former User
                                last edited by

                                @bearer Thank you! I will see what I come up with to desolder it 😃
                                Is there any special version of the ESP-12S Wifi Module I need?

                                A Former User? 1 Reply Last reply Reply Quote 0
                                • A Former User?
                                  A Former User @Haggan90
                                  last edited by A Former User

                                  @Haggan90 said in 12V on the 5V rail:

                                  ESP-12S

                                  Thats about as specific as you can get, but no, any ESP-12 ought work, the 12S has all the right certifications on it which is important for Duet3d selling them, not so much for you. I.e. you could use a 12E or F if easier to obtain (or pretty much any other ESP with the same footprint)

                                  (the ESP-07S is an official option if you want external antenna, just make sure to never run it without antenna attached to avoid damage to the rf tx)

                                  Haggan90undefined 2 Replies Last reply Reply Quote 0
                                  • Haggan90undefined
                                    Haggan90 @A Former User
                                    last edited by

                                    @bearer Thanks!
                                    I just ordered a ESP-07S as I have a bunch of these antennas laying around, hoping for a bit better range on the WiFi then 😃

                                    1 Reply Last reply Reply Quote 0
                                    • Haggan90undefined
                                      Haggan90
                                      last edited by

                                      Manage to desolder it using a regular soldering iron, now I just need the new chip!
                                      20200508_151701.jpg

                                      1 Reply Last reply Reply Quote 0
                                      • Haggan90undefined
                                        Haggan90 @A Former User
                                        last edited by

                                        @bearer Woho! It's working again! 😄 Thanks for all the help!

                                        1 Reply Last reply Reply Quote 1
                                        • A Former User?
                                          A Former User
                                          last edited by

                                          Well done! I'm sure the planet prefers a bit of repairing to just landfills:)

                                          Haggan90undefined 1 Reply Last reply Reply Quote 0
                                          • Haggan90undefined
                                            Haggan90 @A Former User
                                            last edited by

                                            @bearer

                                            Unfortunalty is seems like the Duex2 took a hit as well, as I can't get the steppers working there.
                                            Nothing get's hot on the board.
                                            Any idea what could have broke on the Duex2?

                                            dc42undefined 1 Reply Last reply Reply Quote 0
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