2 layers89.3 × 50 mm

MM58167-ISA RTC
jensma-de/MM58167-ISA-RTC
RTC module for the ISA slot. With schematics, project files in kicad and open source software to drive the clock.
29 parts9
KiCad boards from 4 GitHub repositories tagged “rtc-module”, the most starred first; open any of them in PCBKit.

jensma-de/MM58167-ISA-RTC
RTC module for the ISA slot. With schematics, project files in kicad and open source software to drive the clock.


nithinmathewjoji/Schrodinger-Clock-PCB-Watch-
An open-source ESP32-S3-based smartwatch with RTC, I2C display, buzzer, LEDs, and battery monitoring. Designed using KiCad, it features a compact PCB layout, Li-Po battery support, and USB charging

i-Saac-IV/verbum-horologium
A digital clock that displays time in an analog fashion.