It’s built using a WS2812 LED matrix board he designed himself and his own ESPToy ESP8266 dev board. But the gist of the hardware is simply an ESP8266 and some WS2812’s.

If you already have a ton of smart home devices and you're wondering what to do next, I recommend picking up an ESP8266.

Thanks to affordable hardware like the ESP8266 one of those things a modern web browser can do is sense and control the real world.

But there are a few things that make it interesting. The first is a link to the mobile version of Chrome that turns your smartphone into a PC game controller.