@hek
I am currently trying to send a message from one node to another, but am facing some trouble with it.
I have two nodes, both of them with Motion Sensors attached to them. I want one node to send a message
to the other node when there is motion detected. On the other node, the received message should be saved in a variable.
Looking through other posts I wasn't capable of finding an example I could modify for my purposes. I know there is this function for receiving messages:

void incomingMessage(const MyMessage &message)

but how do I continue? Also, how to send a message? Can you pls give me example code for that?