This is the Foxie CardClock 2.0, an open-source GPLv3, ESP32C3-powered, WiFi-enabled, RTC-havin', super-capacitor havin', analog+digital, RGB LED-laden, clock. It is the successor to the CardClock 1.0 (https://hackaday.io/project/181839-foxie-cardclock) and based on the Foxie Clock 2.0 (https://hackaday.io/project/187511-foxie-clock-20).

There are 3 rings of 12 LEDs on the left side of the PCB, which are used as an analog clock displaying Hours, Minutes and Seconds. A 17x11 LED matrix also displays the time and allows for configuring settings.

A light sensor provides for a smooth experience in brighter and darker environments.

The CardClock time can be set manually or if on WiFi, syncs NTP time every 3 hours. It also keeps track of time using the onboard Real-Time-Clock. Unplug your clock? No problem, the super-capacitor keeps the RTC powered for more than 2 days.