This is a little test game I created with Godot 3.2, Cinema4D R2, Poser 2014 and Photoshop CS.
Godot is an OpenSource Game engine
Right Click to see controls
By Kassad
Demonstration of my "Relax" salt lamp
This is small salt lamp with integration of a micro-controller Attiny85 and a 3 LEDs shield.
I programmed the controller to help for cardiac coherence.
The LEDs are set up with a random color in shades of blue. Their brightness increases during five seconds, then decreases during six seconds.
To do cardiac coherence, you must inspire during the five first seconds when the brightness increases, then expire during six seconds when the brightness decreases.