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    A New Chapter for MagicMirror: The Community Takes the Lead
    Read the statement by Michael Teeuw here.

    Just bought my raspeberry pi. BUT I NEED SOME HELP.

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    • kayakbabeK Offline
      kayakbabe
      last edited by kayakbabe

      no problem at all using the pi4 power supply. the key is the 5v… the extra A will just allow you to power more things that are connected to your pi. If you connected a higher voltage it would burn out your pi.

      In my mind I liken the voltage to water pressure in a pipe… it needs to be constant, if the pressure goes up in a pipe, you can blow the fittings. Or if it’s too low, the water won’t get to the end of the pipe so it can be used.

      The amperage is like the water available that can maintain the pressure in the pipe. So if I put a lot of tubes connected to my pipe, I need a lot of water to keep all those tubes and my main pipe filled up.

      Silly way to think of it, but that’s how my Da explained it to me while he was doing some plumbing.

      1 Reply Last reply Reply Quote 0
      • kayakbabeK Offline
        kayakbabe
        last edited by

        re the sd card,

        nope… the sd card is your “hard drive” without it, there is nothing for the operating system to live on, it has to remain inside your pi at all times to run the pi. The operating system has to be on it too.

        nice thing… you can have several sd cards which have different setups (different OS and/or diff software) and simply power down, switch the sd card, then power up to completely switch what you are doing with your pi. Once you get your pi setup like you want, copy the sd card by making an image or by literally copying it to another sd card, and you have insurance against an sd card failure or disaster which ruins your pi.

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        • D Offline
          DiogoSekeira
          last edited by

          @DiogoSekeira said in Just bought my raspeberry pi. BUT I NEED SOME HELP.:

          and then boot up, afterwards can i erase the os from the sd carD?
          @kayakbabe @BKeyport
          Ok thank you very much for all your awnsers, I’m just new to this whole world and I feel there’s an infinite amount of knowledge in this field that I want to acquire.

          kayakbabeK 1 Reply Last reply Reply Quote 0
          • kayakbabeK Offline
            kayakbabe @DiogoSekeira
            last edited by

            @DiogoSekeira
            me too! I’m always learning. I think this is a great first project.
            Also check out the projects on raspberrypi.org . I learned a lot about python an other languages by doing projects on there.
            This magic mirror project is really neat becuase it will also help you do javascript development. If you are a web developer this is an incredibly fun way to learn more about what is possible to do on a website.

            Basically the magic mirror is a website running javascript with some special added stuff to allow us to control our computer directly so we can do things like turn on / off our monitor, get data from sensors connected directly to the computer running the website and all sorts of fun things.

            As we say in the United States, welcome to the rabbit hole!

            D 1 Reply Last reply Reply Quote 0
            • D Offline
              DiogoSekeira @kayakbabe
              last edited by

              @kayakbabe thank you very much, I find this community very helpful.

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