I wanted to make the case from CrashVector a little bigger in order to fit some holes & pegs to allow the case to snap together. By adding the wording on the case, it allows the light from the LEDs to shine through the single layer under the letters.

Big thanks to CrashVector since his notes allowed me to build my own jiggler that prevents my corporate PC from going into screensaver mode and locking me out. I was able to make this for less than the cost of one from Amazon, and had it much quicker since the ones on Amazon were not available for almost two weeks.

My modified version of the Arduino code is also attached. My only change was to add a blue LED blink when the jiggler does its thing.

Here's a quick clip of the jiggler in action: https://youtu.be/9oUOPmAGwdk

The electronic bits... Arduino board USB adapter