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Can I connect more than 1 board at the same time?

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  • Can I connect more than 1 board at the same time?

    Dear all,

    To answer my own question: yes, limit should be higher, but in my case I am having trouble connecting more than 1.

    I have:
    • Board 1: Arduino Uno with ethernet shield to read 2 reed contacts (water and gas counter). Configured in API mode.
    • Board 2: For 'playing around purposes' (until I find more useful purpose), I recently added a nodeMCU ESP-12F board, configured also in API mode.
    • IP adress, port etc. are are unique for each board

    As soon as the board 2 gets the 'connected' status, 1 or 2 minutes later connection to board 1 fails. And it stays that way until I disconnect the 2nd one again.

    Connect board 2:
    nov-11 11:46:19 Arduino Plugin Error = Board: 1 Connection FAILED.
    nov-11 11:46:04 Arduino Plugin Warning = Board: 1 has a connection ERROR. Trying Reset.
    nov-11 11:45:49 Arduino Plugin Warning = Board: 1 has a connection ERROR. Retrying.
    nov-11 11:44:28 Arduino Plugin Updating Values on Board No: 2
    nov-11 11:44:27 Arduino Plugin Updating pins on Board No: 2
    nov-11 11:44:27 Arduino Plugin Connected to Board No:2 at ip address 192.168.1.47 Port No:55301
    nov-11 11:44:27 Arduino Plugin Board 2 Version API1.0.0.146 and Plugin Version 1.0.0.147 are compatible.
    nov-11 11:44:27 Arduino Plugin Connecting Board No:2 at ip address 192.168.1.47 Port No:55301
    Disconnect board 2:
    nov-11 11:59:14 Arduino Plugin Updating Values on Board No: 1
    nov-11 11:59:13 Arduino Plugin Updating pins on Board No: 1
    nov-11 11:59:13 Arduino Plugin Connected to Board No:1 at ip address 192.168.1.80 Port No:55310
    nov-11 11:59:13 Arduino Plugin Updating Values on Board No: 1
    nov-11 11:59:12 Arduino Plugin Board 1 Version API1.0.0.146 and Plugin Version 1.0.0.147 are compatible.
    nov-11 11:59:12 Arduino Plugin Updating pins on Board No: 1
    nov-11 11:59:12 Arduino Plugin Connected to Board No:1 at ip address 192.168.1.80 Port No:55310
    nov-11 11:59:12 Arduino Plugin Board 1 Version API1.0.0.146 and Plugin Version 1.0.0.147 are compatible.
    nov-11 11:59:12 Arduino Plugin Connecting Board No:1 at ip address 192.168.1.80 Port No:55310
    Board 2 has some delay in reporting the connection error, disconnected it 2 minutes before:
    nov-11 12:00:12 Arduino Plugin Warning = Board: 2 has a connection ERROR. Retrying.
    Anyone have an idea what is the problem, or how to troubleshoot?
    ​​​​​​​
    Thanks in advance,

    Kristof

  • #2
    I suspect there is a problem in your API code flooding the plugin with data so it is missing the second board data.
    Can you send me a debug log of you connecting the second board so I can see what is going on?

    Greig.



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    • #3
      Dear Greig,

      You might be right. I just copy an input back to an output to test, but this is executed all the time. I will do a test tomorrow, adding a timer to only send it every 10 seconds.

      Kristof.

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      • #4
        Dear Greig,

        Seems like you pointed me in the right direction. Did the test, and now both stay connected.

        Tanks,

        Kristof.

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