Problem serial communication monitor

Hello

Iam using 4 arduino boards they can communicate using the mrf24j40MA module.

My porblem is that i can receive data from other boards only if their serial monitor is open, if it’s not I recieve no data anymore.

Please does anybody have an idea about this ?

Thanks :slight_smile:

Please does anybody have an idea about this ?

Sure. I have the idea that you should stop cross-posting immediately!