There are so many ways to tell the time. DIYers have been doing clocks since the Ancient Egypt (obelisks lacked portability, thou). Every modern maker has a clock amongst her first projects. I have done some myself, including a fibonacci clock, a wordclock with a fancy green matrix effect and an unreleased project that hopefully will see the light someday soon.
But recently I came back to the idea behind the wordclock before, to extend it in different ways:
- Replace the ATMega328P with an ESP8266 (NTP support and user interaction)
- Smaller sizes (8×8 LED matrices)
- Smaller PCB, less buttons
- Add buzzer for alarms
- Replace the 3D printed part with a wooden grid cut in laser
- Completely closed enclosure, better presentation
- Fix some issues with the original board (like the lack of a beefy capacitor across the LED matrix power lines).