This project builds upon our previous video that displayed the server status on the screen using Conky:

https://video.retroedge.tech/w/mDhhaBzomWmZn7Yg3DUnxE

This time we are crossing over to the physical world using arduino and red and green LED lights. Green for okay and red if there's a problem.

This was a good exercise to show that Lua and Arduino can be used together, with Lua on the computer side talking using serial over USB to the Arduino.