So he thought of experimenting with those, and built a ‘Binoctular’ LED clock which uses the Neopixel rings as 7 segment displays ... plain vanilla — an Arduino Nano clone, a DS3231 ...

For the displays, [Becky] is using four Adafruit 7-Segment LED modules, which are easily controlled via I2C which keeps the wiring to a minimum. It’s interesting to note that since her follower ...