BlueGUI

BlueGUI combines vlc and bluez-dbus into a simple GUI meant for 3.5" LCD screens on raspberry pis. BlueGUI allows you to use your Linux device as a bluetooth speaker and listen to an audio stream. When an audio stream is detected, BlueGUI will automatically pause and resume your bluetooth audio. The primary uses are for this project is combining automobile/home bluetooth audio systems and software defined radios.

Setup

Java

Ensure Oracle Java is installed java -version. javax.swing may not render correctly if you're using OpenJDK If not, follow this guide https://java.com/en/download/help/linux_install.xml

vlc

Install vlc sudo apt-get install vlc

Bluetooth

Install bluez sudo apt-get install bluez In order to turn your device into a bluetooth speaker, please follow this tutorial https://github.com/lukasjapan/bt-speaker

Bluetooth not working

Verify your bluetooth is on with bluetoothctl show

If your device is not powered, check sudo nano /etc/bluetooth/main.conf has AutoEnable=true after [Policy]

If that still doesn't work, sudo -s, cd /var/lib/bluetooth/{ADAPTER MAC ADDRESS}, nano settings, and add

[Policy]
AutoEnable=true

If you have any other bluetooth related issues, this documentation may prove helpful https://wiki.archlinux.org/index.php/Bluetooth

If you've had bluez before, sudo apt-get remove bluez and sudo apt-install bluez for a fresh reinstall if all else fails

Build

Clone the repository to a conventient directory with git clone blah. cd BlueGUI and run ./gradlew clean build

The jar file will be located at BlueGUI/build/libs/BlueGUI.jar

Configurations

BlueGUI accepts the following configurations for vlc with the -c parameter

OP25

More configurations will be added in future versions

Execute

Command Line

The jar can be ran by java -jar BlueGUI/build/libs/BlueGUI.jar -uri <uri>

Shell scripts and OP25

For an all in one script to run OP25 and BlueGUI automatically, sudo nano BlueGUI/run.sh and make it look something like this (your configuration may vary)

#!/bin/bash
cd home/pi/Programs/op25/op25/gr-op25_repeater/apps
./rx.py --args 'rtl' -N 'LNA:39' --nocrypt -V -q 59 -d 0 -v 1 -S 1000000 -2 -w -W 127.0.0.1 -u 56112 -T trunk.tsv -2>stderr.2 &
cd /home/pi/Programs/BlueGUI
java -jar BlueGUI.jar -uri udp://@:56112 -c op25

Remember to make it executable sudo chmod +x BlueGUI/run.sh

nothotscott/BlueGUI