2 layers20.3 × 25.4 mm

OrangePiZero GPS NTP Server
moonbuggy/Orange-Pi-Zero-GPS-NTP
An Orange Pi Zero GPS disciplined NTP server, with an SPI TFT display.
5 parts23
KiCad boards from 3 GitHub repositories tagged “digital-clock”, the most starred first; open any of them in PCBKit.

moonbuggy/Orange-Pi-Zero-GPS-NTP
An Orange Pi Zero GPS disciplined NTP server, with an SPI TFT display.


creyes2001/digital-clock
Bare-metal digital clock firmware for PIC18F4550 with multiplexed 7-segment display, EEPROM time storage, and cooperative scheduler.