With this easy to follow instruction you can turn every LEGO set into an awesome clock, that uses LEDs to show the time every 15 minutes. I used an old LEGO spaceship from the late 70s, because it was my first LEGO set, but you can use almost any set you like as long as you can fit a Pi Zero (or any other Raspberry Pi) inside. And even if there’s no space for the Pi, you can still install the LEDs and hide the Pi somewhere else.
How does it work?
This LEGO clock basically works like a church bell. As you probably know, some churches broadcast the time every 15 minutes by ringing their bells. Here’s how it works: