Go Down

Topic: Serial between two Arduino Unos (Read 327 times) previous topic - next topic

jonbierma

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.

holmes4

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

LarryD

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.
The way you have it in your schematic isn't the same as how you have it wired up!

zoomkat

Quote
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.
Consider the daffodil. And while you're doing that, I'll be over here, looking through your stuff.   8)

Go Up