Tobers Multidisplay turns your LED-Matrix display into a widely configurable and customizable message center. For ESP8266 or ESP32 and MAX7219 8x8 LED matrix modules. The display can show time, date, ...

Animated 8x32 LED matrix display / smart clock with a microcontroller and (Micro)Python - noahwilliamsson/lamatrix ...

They’re controlled by an Arduino Nano which has a built-in inertial measurement unit, allowing it to sense the angle the pipe is being held at as well as making determinations about its movement.