Idea is to have a coffee table with matte glass as a surface. Underneath is a collection of IR sensors and LEDs controlled by an arduino. LED will change color when item is over it.

(lib (name New_Library_1)(type Legacy)(uri "C:/Users/Tudor/Desktop/Timer LED TM1637 Arduino/New_Library_1.lib")(options "")(descr "")) (lib (name Timer-LED-TM1637 ...

The following project is an update of Gary D. Patterson’s “Simplified CTC signals” in the July 1988 issue of MR. Bringing the project up to date was a large endeavour. The block control project now ...