Check the time on a glow-in-the-dark UV LED clock

If you thought plot clocks that write on a tiny whiteboard were cool, this project takes things to the next level, jotting down the time not with a dry-erase marker, but with a UV LED on a glow-in-the-dark sticker.

The device itself uses an Arduino Uno for control, along with a RTC module for timekeeping, and a pair of servos that move the LED with custom linkages.

In addition to an awesome looking glow-surface, the clock has been upgraded with a full 3D-printed enclosure. For a quick overview of the project, you can check it out on Imgur. If you’d like to build your own, all the Arduino code and print files are available on Thingiverse.

from Arduino Blog http://bit.ly/2GqXS1t