DIY Electromagnetic flip clock with GPS

Quick little video to show off my latest project, an electromagnetic flip clock, inspired by vintage commercial clocks, and other projects seen here and there. This uses 28 bifilar coils made with the coil winder from my previous video, and controlled by an Arduino Nano, with MCP23017 chips and transistor arrays. All the main parts are 3D printed. It's 16 inches wide.
The clock sets itself to the correct time automatically on power-up using GPS, and keeps itself on time that way.

[@PCBWay]

This is really great! 👍

[@asadnasser4320]

Amazing idea 💡
Is it available for sale !!

[@davidpichevin]

Thanks! And no, just a personal project.

[@seamali4383]

Woah! Amazing!! ❤

[@lenivij-df7bv]

Красиво, механика, аналог. Но потом будет раздражать, если использовать дома.

[@luzookiipcbway]

Hey David. We found your videos so rewarding, and were wondering if any prototype services may help? Such as custom PCBs, 3DP, CNC etc. If so, would love to supply freely and reach any YT collab together! (PCBWay luz)

[@trylater4]

can i build this?

[@davidpichevin]

It's pretty involved. There is info out there and some versions that are entirely mechanical.

[@trylater4]

@@davidpichevin hmmm..okeii david