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    Please do not post a support request without first reading and following the advice in https://retropie.org.uk/forum/topic/3/read-this-first

    Micro USB extension question

    Scheduled Pinned Locked Moved Help and Support
    powerusb extensionsusb adapternewbie question
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    • KleenaxK
      Kleenax
      last edited by

      I'm currently working on a case for my Raspberry pi 3 b+ , my issue is in the case I need a micro usb extension to run from the pi located in the middle of my case to the outside edge where I can mount the female end. I've purchased 2 different extensions off of good old amazon unfortunately they are both giving me a low voltage warning. Does anyone have a link to one that will carry the full power to my pi or any other suggestions?

      Here is a link to one of the extensions I bought ,
      https://www.amazon.com/gp/product/B072FG6R66/ref=oh_aui_detailpage_o01_s00?ie=UTF8&psc=1

      KN4THXK 1 Reply Last reply Reply Quote 0
      • KN4THXK
        KN4THX @Kleenax
        last edited by

        @kleenax My guess is the resistance on most or all of those cables may cause voltage issues with the Pi 3 since every one I have seen appears larger gauge wire. You could build your own cable with some matching gauge wire and some male/female dyi ends:

        https://www.adafruit.com/product/3258?gclid=Cj0KCQjwtb_bBRCFARIsAO5fVvHz6BO86tJxLM0CwDxcI8sqCv-0sURdrrZE-AYURdpC8-_b2VhaLvkaAq43EALw_wcB

        "If you're gonna play the Game Boy, You gotta learn to play it right" - https://www.youtube.com/watch?v=FYLGl92ETNQ

        1 Reply Last reply Reply Quote 0
        • KleenaxK
          Kleenax
          last edited by

          Thank you for the reply @TheDataCereal
          Building my own cable is my last resort. Right now after about 30 minutes I'm going to try a DC Barrel Jack to Micro-USB adapter. It's 5v rated with a ton a good reviews and I also found a USB to 5.5 mm/2.1 mm 5 Volt DC Barrel Jack Power Cable . So in ~ 2 days I'll have a better answer.

          KN4THXK 1 Reply Last reply Reply Quote 0
          • simpleethatS
            simpleethat
            last edited by

            What power supply are you using? I have an adafruit micro usb extension and 5v 3a power supply and have no problems with low voltage and I'm powering an external HD through my pi 3B

            KleenaxK 1 Reply Last reply Reply Quote 0
            • KleenaxK
              Kleenax @simpleethat
              last edited by

              @simpleethat I'm currently using the power supply that came with my CanaKit.

              1 Reply Last reply Reply Quote 0
              • KN4THXK
                KN4THX @Kleenax
                last edited by

                @kleenax Let me know how that works. I'm tempted to test an Amazon cable on mine now

                "If you're gonna play the Game Boy, You gotta learn to play it right" - https://www.youtube.com/watch?v=FYLGl92ETNQ

                KleenaxK 1 Reply Last reply Reply Quote 1
                • KleenaxK
                  Kleenax @KN4THX
                  last edited by

                  @thedatacereal
                  I was supposed to get my new cables in today but when they arrived the seller sent me the wrong product. I will update when I receive the correct item and put them to the test .

                  1 Reply Last reply Reply Quote 1
                  • DarksaviorD
                    Darksavior
                    last edited by

                    Unless the cables specify the gauge of the power wire, don't buy them. I made my own since the connectors were like $1-2.

                    For reference, the official pi power supply uses 18awg.

                    KleenaxK 1 Reply Last reply Reply Quote 2
                    • KleenaxK
                      Kleenax @Darksavior
                      last edited by

                      All cables have arrived and I'm getting the same issue. Looks like making my own cable is the way to go. I might try a new power supply as well. Thank you@darksavior for the correct gauge of wire I should use.

                      DarksaviorD 1 Reply Last reply Reply Quote 1
                      • DarksaviorD
                        Darksavior @Kleenax
                        last edited by

                        @kleenax Yep, I can only recommend the official pi power supply that's 5.1V 2.5A. I've never tried the rest. The pi will complain if voltage goes under 5V, so make sure the power supply is 5.1V.

                        1 Reply Last reply Reply Quote 1
                        • KleenaxK
                          Kleenax
                          last edited by

                          Final Update:

                          Turns out it was my charger all along . Here is what I ended up doing.

                          From my Pi3 I run a DC Barrel Jack to Micro-USB B Male Connector (http://a.co/d/4yVdU3c) . Then from the barrel jack I have a normal power supply (http://a.co/d/7j0vMr3) . No voltage issues at all and everything seems fine.

                          1 Reply Last reply Reply Quote 0
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