The white LED ribbon in dark. Outline the shape of the construction.
Why I chose the white LED ribbon?
For the final version, the frames are all white, and the construction (borders+paper cutting sides) will be painted white.
I believe cold light, especially, the white one can be caught up early in a dark space. In addition, this white is so pure, it won’t smudge the the other colors of mapping.
Connected with triac, get easy for electricity supply, and can be controled by Arduino.
*Battery is also ok.
*A better solution: alternating current (AC).
A problem should be considered: the INPUT. Still need one more testing.
delay (30000): as the footage (the video) will be looped, for each time, when the video begins, the ribbon will be turn off, when the video ends, the ribbon will be turn on. “delay (30000)” is the other loop.