The rest uses a power latching circuit, which turns on the Adafruit Trinket M0 to show the time using a NeoPixel ring. Be sure to check out the awesome project logs with fantastic pictures throughout.

You are stuck at home quarantined and you want to do some Arduino projects ... out Wokwi’s Playground. For example, you can write code to drive a virtual NeoPixel 16×16 matrix.