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Troubleshooting

 

  • In LINUX, If serial port is not accessible, add your user to dialout group

 

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Table of Contents


Serial port is not accessible (Permission denied)


Code Block
titleOn LINUX
sudo usermod -a -G tty my_username
sudo usermod -a -G dialout my_username 
.. and logout
// if not work, try
chmod 777 /dev/ttyACM0

Native Library bluecove_x64 not available (LINUX)

Exception: Caused by: javax.bluetooth.BluetoothStateException: BlueCove library bluecove not available;

Check if dependencies has installed: Bluetooth Requirements

Data lost in MQTT

You'll need to increase the underlying MQTT library's memory limit. The PubSubClinet MQTT library has a default memory limit that is not enough to you use case.