OK, I got it.

Last question, can ev4 read data from serial terminal?

Yes, you can read and write to the 3 hardware high speed uarts in ARC or sdk. There is a terminal in ARC for the uarts. Download ARC for free right now.

You can connect to 5 ez robots with the software. You can have Auto Position controls for movements of each robot. You can also code as given example by previous posts.

You can do anything you want with it. Download the software

As for your Arduino, you can connect to it - but that's up to you. You will have to write code on your arduino and stuff. That's something I can't help you with. Which is why we made ez robot, so ppl don't have to write complicated code on arduinos to do very little and impress no one

Thanks

@Richard

Hi, I met another question. I tried to use sayEZB() method to make multiple ez-robots say different sentences in the same ARC. like the first border will say sayEZB("First"), but how to make the second board say sayEZB("Second") ?

The SayEZB() only works with the FIRST ezb. This is hardcoded and cannot be changed.

Thanks