Just like gingerbread and reindeer, advent calendars are part of the Christmas tradition in many countries around the world. A Raspberry Pi tinkerer has now realized an enticing project idea by building his own advent calendar with Lego, which can also prevent the premature consumption of all Christmas treats.
https://www.notebookcheck.net/Ingenious-tinkerer-builds-an-electric-advent-calendar-using-Lego-and-a-Raspberry-Pi.582529.0.html