Two way communication between ardunio's

Projects General Guidance
1

Hi! So i'm having quite a few issues with a particular part of my project.

So I have two ardunio boards, an Uno (embedded in the romeo control board by DFrobot) and a Mega2650.

I'm trying to send and receive some variables between them. All the variables are integers between 0-255. I'm not an expert and would like something simple and easy to implement into my code. I have already attempted to use Easy Transfer however after a few days of fiddling it is still not working on my system.

So all i need is an way of transferring multiple integer variables over serial. Im not afraid to use I2C however I am very inexperienced with it and already have a ultrasonic sensor setup and working on it, and would rather not tamper with something that is working perfectly.

Thanks for any help!

2

The examples in Serial Input Basics would be suitable. The 3rd example will be most reliable.

It will be easy to make the sending Arduino match the expected format.

...R

3

^As again agree with the above (damn he gets in there fast!).

Look at SoftwareSerial library (included in Arduino pre-installed usually).

4

I got a perfect lib from chucktodd which works great, feat. transmission control and reuptake of transmission after a break - hope it would be useful to you, too!
(@Chuck, thanks again, great work!)

http://forum.arduino.cc/index.php?topic=346011.msg2386207#msg2386207