Physical Unix timestamp clock

[imjasonh]

Lil microcontroller with seven-segment displays that show Unix timestamp instead of human-readable time. 10 digits, for the foreseeable future. Digits come in blocks of 4, so 12 digits. 12 digits is plenty.

GPS module gets time from satellites, battery backup keeps time when you can't get a fix.

Push a button to display human-readable time+date. e.g., hh:mm.ss.MM.DD.YY -- if it only has 12 digits, there's no room for a 4-digit year. But you should know what century it is.

Push another button to display current lat/long from GPS. e.g., 40.7429,-74.009 -- if it only has 12 digits, it's not going to be very precise, but that's fine.

Powered by AA batteries? USB? Unclear.

3D printed case.

[imjasonh]

Ongoing https://github.com/ImJasonH/arduclock/

[imjasonh]

I never really finished this, and I think I could do it better than I did before.

[imjasonh]

3x 4-digit 7-segment display: https://www.digikey.com/en/products/detail/adafruit-industries-llc/5604/16819805

• Rust crate: https://docs.rs/adafruit-7segment/latest/adafruit_7segment/

GPS: https://www.digikey.com/en/products/detail/adafruit-industries-llc/746/5353613

• Rust crate: https://docs.rs/adafruit_gps/latest/adafruit_gps/