This clock is based on the Wemos D1 Mini MCU and it keeps accurate time using NTP servers over the internet, just like regular computers.
- 7-Segment Display units (2.3 inch high for this PCB design, otherwise, could be any size) - 4 Nos
- Wemos D1 Mini - 1 No
- General purpose NPN transistors (E.g., 2N 2222A) - 11 Nos
- General purpose PNP transistors (E.g., 2N 2907A) - 4 Nos
- Resistors - 2k2 Ω - 21 Nos
- Resistors - 220 Ω - 7 Nos
- 12V DC 5W Power supply module HLK-5M12 - 1 No
- 5V Regulator IC 7805 - 1 No
- Capacitor 470 μF - No
- PCB fabricated to the specifications here