Make an interactive coffee table with Arduino and LEDs
Rather than buying a coffee table, Marija from Creativity Hero decided to build her own, adding an array of 45 programmable LEDs on top of a pine base.
An Arduino Mega is used to take input from 45 sensors corresponding to each LED in a grid made with MDF baffles, and commands each light to change colors based on whether something is placed on that square section. The on/off colors used can be selected via a Bluetooth smartphone app, allowing you to customize the furniture to your liking.
This unique LED coffee table can create beautiful atmosphere and will be a real focal point in my living room. I wanted to make a simple design with some interesting features that will take my room to a whole new level. It is controlled via a custom-made Android application, so I can easily change the reactive color, or the background color, and I can even adjust the brightness.
You can find full details on the project here, as well as the tools and parts you’ll need.