This level indicator is to be used for an online automatic plant watering system. It indicates five levels (0%, 25%, 50%, 75%, 100%) for water and moisture levels 1, 2, 3. The 3D-printed housing contains 24 digitally controlled LEDs (NeoPixels). The control is done with an ESP32, which can also be an Arduino Uno (or similar).

Full description can be found on: https://www.hackster.io/Pedro52/arduino-with-4x6-neopixel-level-indicator-in-3d-printed-case-c13cb5