This is our hack for Dart Hackaton in São Paulo/Brazil in last weekend.
You can see source-code and other infos in: https://github.com/luisleao/DartHackaton
We created a Quiz with Dart server and web modes using an Arduino (and a ADK shield) to select the options and ring a bell. When the right answers is selected, the bell ring one time and the led turn on green, otherwise 3 times the wrong answer turn red.
