Communicate between MP and Navio2 using Zigbee

Hi everyone, sorry if my english skill is not good. And thanks for spending your time to help me!

I am a newbie at raspberry and navio2. I want to connect MP to Navio2 using telemetry module, in this case, that is Zigbee USB module.I tried to communicate between 2 modules without connected in Navio2, and it worked very well. I have set telem2 to : TELEM2="-C /dev/ttyUSB0", using 57600 baud rate by default. But when i try to connect on MP, it shows me that MP is trying to connect but it’s never finish. After 30s, there is an error that:

no heartbeat packet received

I don’t understand why and i can’t find out the direction to fix that. Can you guy help me?

Thank you!

Hi @onez0369,
Did you try to add your user to the tty group? You can make it easily with the following command:
sudo usermod -a -G tty pi. If it won’t help, please let us know and specify which usb module do you use.

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