Nummernsender is a acobbled together toy project to send numbers to a receiver and display it on a 4 digit seven segment display.
This project incorporates code taken a from CC 4.0 BY-SA tutorial at https://www.geeksforgeeks.org/udp-server-client-implementation-c/. It also contains lines from demo code from Александр Мишин (https://gitlab.com/alexandermishin13/tm1637-display) that looks to be BSD 2-Clause. This looks a bit of a mess. Proceed with caution.