Texmagotchi

Where the idea comes from :

Pet => Couldn't afford!

Plant => Couldn’t keep them alive!

Marimo => Low maintenance, absorb bad stuffs and pollutants in the surrounding water.

Arduino side :

Adafruit APDS9960 Proximity, Light, RGB, and Gesture Sensor - STEMMA QT / Qwiic
Photo Transistor Light Sensor

P5 side : How the interaction should be