Can two arduino with bluetooth modules exchange data, commands with each other?

Question

Arduino

Perhaps this will come in handy in my project
. There are three arduinos, one of them is the main one, two are side ones. It is necessary to make sure that the main arduino via bluetooth can give commands to the side commands to the side ones (for example, make them execute some sketch) and exchange information from the sensors.
Is it possible?
Thanks in advance^^

Answer 1

Yes.
example of processing a BT command .
the only thing is that the port sends data byte by byte. Those. either commands with a length of 1 byte, or determine the sign of the end of the package and write a handler that will glue the package. Well, it would be better to write some kind of your own protocol for confirming receipt and processing