DONT USE SOURCE CODE from github! Use releases only: https://github.com/KONNEKTING/ALEDD1/releases
This firmware requires external libraries, all of them can be installed via Arduino IDE library manager. Please check comment in ALEDD1.ino
at the moment a special version of KONNEKTING Device Library is required (but it is included).
not all features are implemented.
Pull-requests are welcome :)
HW and some FAQs (at the moment in german only): https://knx-user-forum.de/