Weather beacon

This weekend, I implemented a weather beacon based on the one in Boston’s Berkeley Building, a.k.a. the “Old Hancock Building”, and the subject of this famous rhyme:

Steady view, clear view
Flashing blue, clouds due
Steady red, rain ahead
Flashing red, snow instead

I installed a color-controllable light inside the cupola on top of our garage, and wrote some software to retrieve weather information and control the light.