My Bricks Online: your smartphone in Lego, make playtime fun

To make their hack, the guys used PubNub’s API to trigger actions based on colors shown to the device’s camera — meaning that the car made different sounds on a red, yellow or black service — with a HTML page showing lap times on the race track they built. They pointed that, if you have smart bulbs in your house, you could also trigger trigger those using IFTTT actions.