ohn's Projects and Musings
This was a fun project. This is a motion sensitive light made with a PIR sensor, a piece of diffraction grading sheet, a small piece of an addressable LED strip, and an AT-85 Tiny microprocessor that displays different pattern colors when the PIR is triggered. That Arduino stuff is so flexible to work with! The CNC was used to pocket out the PIR slot and the grooves for the shade to sit into.
A random pattern is chosen to play at every trigger.