You can build a digital clock with a large 7-segment display, a Feather RP2040, and CircuitPython -- no internet required! For time keeping, this build uses the DS3231 Real Time Clock module for precise and accurate timing. Full Tutorial https://learn.adafruit.com/digital-clock-with-circuitpython/ Code on GitHub https://github.com/adafruit/Adafruit_Learning_System_Guides/blob/main/Digital_Clock_with_CircuitPython/code.py 1.2in LED 7-Segment Display https://www.adafruit.com/product/1271 Feather RP2040 https://www.adafruit.com/product/4884 DS3231 RTC STEMMA QT https://www.adafruit.com/product/5188