Home Forums EasyTransfer Library Support Forum Multiple Instances of SoftEasyTransfer

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    So I have a need for two instances of softeasytransfer. I know that I can create two software serial instances but I’m having issues initiating two instances of the SoftEasyTransfer. The code only seems to receive the data from the last software serial port that was initialized.

    For instance if I have this in the setup

     ETdata1.begin(details(one), &PortOne);
     ETdata2.begin(details(two), &PortTwo);

    It will read PortOne ok but won’t read PortTwo info. Swap the PortTwo.begin(9600); and PortOne.begin(9600); and it will start reading PortTwo ok.

    Any ideas? Thanks again for this library! It rocks.


    From http://arduino.cc/en/Reference/SoftwareSerial

    The library has the following known limitations:
    If using multiple software serial ports, only one can receive data at a time.

    So it’s not my library, it’s a limitation of SoftwareSerial on Arduino.


    Bill, Thanks mate! I had no idea on that limitation of Software Serial though I guess it makes sense.

    So the best bet here would probably be to write something that sends a command to one of the two devices I want to receive from and have it send its data (through your library) and receive that data then send the “get” command to the other device and wait for that to respond?

    Then its just a matter of continuing that indefinitely I guess?

    Thanks for your help mate!

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