With my recent rebooted interest in Euro Truck Simulator 2 and it's tons of controls, I've decided to create a virtual button box so I can use my iPad to interact with the game.
While there are some other alternatives out there, I wasn't really satisfied with them.
You can check more details about it in its dedicated page:
You can also access its full source on GitHub:
https://github.com/Fergo/FergoETS2VBB