This project started as needing something to turn of some UV LEDs during circuit board creation. I had a module from a printer with an LED pushbutton, pushbutton, and another LED. I had some ATTiny85s that I wanted to do a project with, and the size was right. Any time you are messing with UV light, take precaution to know what type you are using, you can damage your eyes.
Files are all at the github: https://github.com/dirkandterra/ATTINY85_UVControl.git