Do you remember mood rings? They were a gimmick in the '70s and '80s that supposedly changed color based on your mood. It's time to dig that old gimmick up once again, but this time we'll bring it in to the 21st century and use AI, a microcontroller, and NeoPixel LEDs to make a legit mood ring that can be used to visualize sentiment in a live chat room.

In this session, we'll see how to perform sentiment analysis on a text string from a live chat room. We'll learn the basics of microcontrollers (Arduino) and use one to change the color of an LED light ring based on detected chat sentiment. We'll also discuss how this solution can be extended for other use cases.