Logitech Headset battery status on GNOME 3 panel in Ubuntu

HS.r.10s.sh

#!/usr/bin/env bash
PERCENTAGE="([0-9]*)%$"
CHARGING="(Charging)$"
BATTERY_LEVEL="$(headsetcontrol -b)"
DEVICE="(Found\s)(.*)!"

if [[ $BATTERY_LEVEL =~ $DEVICE ]]; then
    DEVICE_NAME="${BASH_REMATCH[2]}"
else
        DEVICE_NAME="none"
fi

if [[ $BATTERY_LEVEL =~ $PERCENTAGE ]]; then
    STATUS="${BASH_REMATCH}"
elif [[ $BATTERY_LEVEL =~ $CHARGING ]]; then
        STATUS="Charging"
else    
        STATUS="Disconnected"
fi

echo "$STATUS | iconName=audio-headphones-symbolic"
echo "---"
if [[ $DEVICE_NAME != "none" ]]; then
    echo "$DEVICE_NAME | iconName=audio-headphones-symbolic"
fi

shell_commands.md

Install HeadsetControl

Intall C compiler and cmake.

sudo apt-get install build-essential git cmake libhidapi-dev

Clone HeadsetControl from GitHub.

git clone https://github.com/Sapd/HeadsetControl && cd HeadsetControl

Compile code.

mkdir build && cd build
cmake ..
make

Instal HeadsetControl globaly and without root privileges.

sudo make install
sudo udevadm control --reload-rules && sudo udevadm trigger

---

Install argos

Clone gnome-3.36 branch from GitHub rammie/argos.

git clone -b gnome-3.36 https://github.com/rammie/argos.git

Copy repository into shell extensions folder.

cp -r argos/argos@pew.worldwidemann.com ~/.local/share/gnome-shell/extensions

Restart GNOME Shell with Alt + F2 and entering r.

Enable argos in Tweak Tool.

---

Prepare argos script

Download argos script.

wget https://gist.githubusercontent.com/MarcMichalsky/56b35a5972b08d4e859d479e5309d02a/raw/ac6802b5f5d50322663adfe3f66a69225f90139d/HS.r.10s.sh
mv HS.r.10s.sh ~/.config/argos/

Make script executable.

sudo chmod +x ~/.config/argos/HS.r.10s.sh