This housing holds a Trinket M0 from Adafruit so that it will hang on a laptop screen. The idea is to use a USB cord to power and control the RGB LED on the Trinket to notify a teacher, care-giver, etc. when a user needs attention.
This was inspired by Michelle Brose, who is a quadriplegic heading to college who wants to be able to raise her hand without being overly distracting.
A full guide for the project will be published on Adafruit in the near future - link to come
More on the goal here and how this uses CircuitPython starts at 13:00 or so