Developer Documentation

Find here information for developers of this project. If you just want to use the package you don’t need to read any further.


Checkout the repository to /home/pi/flipflapflop:

$ cd /home/pi
$ git clone

The deployment scenario described here relies on a Raspberry Pi that acts as an access point. To setup a Pi this way you can follow the instructions from We choose to give the Pi the IP4-address The ethernet port can be connected directly or via USB to a local net in order to make the Pi accessible for other scenarios.

The display will be connected to the Pi directly. On the Pi runs a systemd-service as described in the Raspberry Pi Documentation. The service file flipflapflop.service must be copied to /etc/systemd/system and can be started afterwards:

$ sudo systemctl start flipflapflop.service

To enable the service for automatic startup during boot use the following command:

sudo systemctl enable flipflapflop.service

The display server runs on the default port 10101 and can be configured further in You can specify dimensions of the display as well as module configuration here.

Creating the documentation

The documentation is made with Sphinx. Therefore the sphinx framework and a third party theme from readthedocs must be installed.

$ pip install -r docgen/requirements.txt

The documentation is created with sphinx and is configured in folder docgen. You can use make html or make.bat html to create the docucmentation in docgen/_build/html. It will automaticall be copied to docs. After pushing to github it will be available there.

There is a gitlab-ci.yml script that will only be executed if the project is hosted on a gitlab server. The script automatically deploys the documentation on every commit onto the master branch. An examples can be found here.

Class Diagram

The following diagram shows classes of the project.


Video Backups

The videos linked in this documentation are hosted by YouTube. There is a mirror of these videos at