Background
This is project with was on my list for future projects for quite some time..now I decided to start with it. In short: The goal is to make a miniature remake of the Mengenlehreuhr found in BerlinPhoto by Willy Pragher (CC BY 3.01) found on Wikimedia
More Information about the original can be found on Wikipedia. Of course my Version is planed to have a more bookshelf compatible size.
Status
- first Version Assembled
- ALL leds working
- stls available on github
- Demo code running
- Demo code available on github
- Time encoding in firmware working
- RTC implementation pending
Assembly/BOM
Electronics:
- Ardruino Nano (the classic one to fit in Case)
- DS3231 RTC Module
- red and yellow 3mm LEDs
- some wires
3D printed parts:
colors of choice (recommendation in brackets)
- 1x Base with pole (black/grey)
- 1x top frame (grey)
- 6x big round digit. Must be semi transparent (4x red + 2x yellow)
- 6x big digit. Must be semi transparent (4x red + 2x yellow)
- 2x small round digit . Must be semi transparent (2x yellow)
- 9x small digit . Must be semi transparent (3x red + 6x yellow)
- 1x big round top digit. Must be semi transparent (yellow)
Hot glue to stick it all together
I had never heard of that clock before. I always like unusual display like that. Nice job!