I just finished making a clock for my work area using a 7 segment display,RTC (real time clock) and the RTC library. The nice thing about using this RTC is that it has a backup battery so if you lose power, it still maintains the time.
Fairly easy setup. Both the RTC and the 7 segment display use 12c to communicate with the Arduino. Because they have different addresses this is ok. Adafruit has this handy chart of a lot of sensors and things and what their addresses are. The 7 segment display I used has an address of 0×70 and that is not yet on the chart, but can be found in the library RTClib.
8-6-2021 (August 6, 2021) is the Snakiest day of the year and it’s also this year’s CircuitPython Day! The day highlights all things CircuitPython and Python on Hardware. See you there!
Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, TinyGO, or even use the Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for CircuitPython, MakeCode, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.