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Doorbell client

This is the PC client to get the bell rings and control the buzzer. The client is a Qt6 project in the sub-folder client. Have a look at ../readme.md for an overview of the entire project (broker & client).

Build

The doorbell client needs Qt6, and we recommend Qt 6.8.3.

Build MQTT dependency

The doorbell client needs QtMqtt to connect to the broker. To build QtMqtt:

  • Replace QtVersion in the following snippet (here 6.8.3).
  • Run the following snippet:
sudo apt install ninja-build
cd ~/tools/
git clone git://code.qt.io/qt/qtmqtt.git -b 6.8.3
cd qtmqtt
mkdir build && cd build
/opt/Qt/6.8.3/gcc_64/bin/qt-configure-module ..
/opt/Qt/Tools/CMake/bin/cmake --build .
sudo /opt/Qt/Tools/CMake/bin/cmake --install . --verbose

Taken from https://stackoverflow.com/questions/68928310/build-specific-modules-in-qt6-i-e-qtmqtt/71984521#71984521.

Build the client

After the dependencies have been installed, build the doorbell client:

cd client
mkdir build && cd build
cmake .. -DCMAKE_PREFIX_PATH=/opt/Qt/6.8.3/gcc_64
make -j8

Build and deploy

There is a script build-and-deploy.sh doing the following steps:

  • Clean the build
  • Build
  • Stop running doorbell-client
  • Move the build file to ../client-release/doorbell-client
  • Start the new doorbell client

System configuration

Autostart setup

To setup autostart for the doorbell broker within Ubuntu, do the following:

touch ~/.config/autostart/doorbell-client.desktop
nano ~/.config/autostart/doorbell-client.desktop

Fill in the following contents:

[Desktop Entry]
Type=Application
Exec=~/code/doorbell/client-release/doorbell-client
Hidden=false
NoDisplay=false
X-GNOME-Autostart-enabled=true
Name[en_US]=doorbell-client
Name=doorbell-client
Comment[en_US]=
Comment=

To test if it works, run:

cp doorbell-client.desktop ~/.local/share/applications
gtk-launch doorbell-client.desktop

Disable Wayland for Ring Popup

Placing the ring popup top right on the screen and in the foreground only works if Wayland is disabled.

  • Set "WaylandEnable=false" in GNOME config:
  • Run sudo nano /etc/gdm3/custom.conf
    • Set the following:
[daemon]
WaylandEnable=false
  • Reboot the system