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

Add data from another Pi

Scheduled Pinned Locked Moved Solved Troubleshooting
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  • R Offline
    Richard238
    last edited by Feb 13, 2017, 10:44 AM

    I have another Pi, in an out-building, collecting data and serving it up via Apache/MySQL/PHP.

    How can I get this data integrated in to MM2?

    Thank you.

    1 Reply Last reply Reply Quote 0
    • Y Offline
      yawns Moderator
      last edited by yawns Feb 13, 2017, 11:28 AM Feb 13, 2017, 11:26 AM

      If you use Apache and PHP you could create a php script which delivers JSON (or XML) data based on the query and is called by the other raspberry. I would avoid saving data into a text file on the Apache PI and having the MM² PI opening this text file. That could cause trouble when the file is in use (data is currently being written into the file).

      R 1 Reply Last reply Feb 13, 2017, 12:23 PM Reply Quote 0
      • R Offline
        Richard238 @yawns
        last edited by Feb 13, 2017, 12:23 PM

        @yawns said in Add data from another Pi:

        …you could create a php script which delivers JSON (or XML) data…

        Beyond my capabilities, I’ll keep looking though. Thank you.

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        • Y Offline
          yawns Moderator
          last edited by Feb 13, 2017, 12:31 PM

          Okay, one step back …
          Your data is stored in your mysql database, right? How is this data stored there? Did you program a script? Or are you using a script/system from the internet? Maybe there already is some kind of a backend you could use?

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          • R Offline
            Richard238
            last edited by Feb 13, 2017, 1:37 PM

            @yawns said in Add data from another Pi:

            Okay, one step back …
            Your data is stored in your mysql database, right?

            Yes, correct

            @yawns said in Add data from another Pi:

            How is this data stored there? Did you program a script?

            It’s a couple of temperature sensors which are written to the MySQL DB via a .py script.

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            • I Offline
              izanbard
              last edited by Feb 13, 2017, 1:44 PM

              @Richard238

              serving it up via Apache/MySQL/PHP.

              I can help modify the scrip that servers up the data for viewing and instead of returning HTML it could easily return JSON. That would be step one. To help I would need to see your php files and know what url you are using to access the PHP page. either PM them to me, or point me at a repo.

              Step two would be writing a MM module that gets the JSON and displays it right. I may be able help here too.

              I 1 Reply Last reply Feb 13, 2017, 1:49 PM Reply Quote 0
              • I Offline
                izanbard @izanbard
                last edited by Feb 13, 2017, 1:49 PM

                @izanbard Of course if you already have a webpage with exactly the right stuff on it, then you could use the iframe module.

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                • I Offline
                  izanbard
                  last edited by Feb 13, 2017, 11:16 PM

                  Have emailed you with some instructions, but check:
                  [card:izanbard/MMM-MyTemps]
                  for the full source

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                  • R Offline
                    Richard238
                    last edited by Feb 14, 2017, 5:00 PM

                    Thanks for all your work on this, it’s working great!

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