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Author Topic: Serial between two Arduino Unos  (Read 240 times)
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I am working on a project that requires two Arduino Unos to communicate.  Is it possible to communicate serially between the two using digital pins 0 and 1 (RX and TX?)

Having mixed results so far with using serialSoft and trying to test the functionality using a computer.
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Poole, Dorset, UK
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On pins 0&1 you use Serial NOT softserial. Just connect pin 0 on each uno to pin 1 on the other. For other pins use newsoftserial.

Mark
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The last thing you did is where you should start looking.
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A UNO can talk to your PC serial monitor using RX & TX.
So sure you can have 2 UNOs talk to each other. Use wires between them not the USB.
You just have to program them so they can interact.
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I am working on a project that requires two Arduino Unos to communicate.  Is it possible to communicate serially between the two using digital pins 0 and 1 (RX and TX?)

You will probably need to also connect the two boards grounds together.
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Consider the daffodil. And while you're doing that, I'll be over here, looking through your stuff.   smiley-cool

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