MagicMirror Forum
    • Recent
    • Tags
    • Unsolved
    • Solved
    • MagicMirror² Repository
    • Documentation
    • 3rd-Party-Modules
    • Donate
    • Discord
    • Register
    • Login
    A New Chapter for MagicMirror: The Community Takes the Lead
    Read the statement by Michael Teeuw here.

    Powering my mirror?

    Scheduled Pinned Locked Moved Hardware
    45 Posts 6 Posters 34.9k Views 4 Watching
    Loading More Posts
    • Oldest to Newest
    • Newest to Oldest
    • Most Votes
    Reply
    • Reply as topic
    Log in to reply
    This topic has been deleted. Only users with topic management privileges can see it.
    • M Offline
      maxbachmann
      last edited by

      @The-Bean you might want to try with a additional cooler on the converter since the pi is not constantly pulling 2A, so it might work

      1 Reply Last reply Reply Quote 0
      • T Offline
        The Bean
        last edited by

        http://a.co/4qRQUQJ

        1 Reply Last reply Reply Quote 0
        • M Offline
          maxbachmann
          last edited by

          @The-Bean When it gets really hot I would try with a heatsink
          and what happens when you connect it and then turn up the voltage until you reach 5V?

          1 Reply Last reply Reply Quote 0
          • T Offline
            The Bean
            last edited by

            the converter its self doesnt really get hot.(that i have noticed) it just the wire to the pi. and once it drops, it doesnt adjust anymore.

            1 Reply Last reply Reply Quote 0
            • M Offline
              maxbachmann
              last edited by

              hm strange I mean I don’t know the cable size you use, but 5V 2A is pretty much nothing for any cable. Should not really get hot for sure

              1 Reply Last reply Reply Quote 0
              • T Offline
                The Bean
                last edited by

                thats what i thought… i will continue to investigate and post back if i find anything.

                1 Reply Last reply Reply Quote 0
                • M Offline
                  MadScientist
                  last edited by

                  2A is not nothing for a thin cable. What kind of cable are you using? If it is just a very thin one, it would also explain the huge voltage drop. Try using a thicker one.
                  I am running the Pi with a SSD with one of those very cheap china buck converters without any issues for 6 months now.

                  1 Reply Last reply Reply Quote 0
                  • M Offline
                    maxbachmann
                    last edited by

                    Yep thats why I write I don’t know what siye of a cable you use ;)
                    but since I expected the cable to be very short (step down converter directly in front of the pi and the cable is probably open to all sides
                    VDE rules say you should use at least 0.5mm² up to 2.5A 2m
                    and at least 0.1mm² up to 1A 2m

                    So you should use 0.5mm² to be on the safe side.

                    0.25mm² should probably work aswell when you do not have long cables and do not stress the pi fully out to 2A ;)
                    But yes @MadScientist is right you should definetly not get below this

                    and keep in mind those values are for copper cables. If you use aluminium cables you obviously need thicker cables

                    1 Reply Last reply Reply Quote 0
                    • 1
                    • 2
                    • 3
                    • 4
                    • 5
                    • 3 / 5
                    • First post
                      Last post
                    Enjoying MagicMirror? Please consider a donation!
                    MagicMirror created by Michael Teeuw.
                    Forum managed by Sam, technical setup by Karsten.
                    This forum is using NodeBB as its core | Contributors
                    Contact | Privacy Policy