This article mainly summarises a video if you'd rather watch:<p><a href="https://youtube.com/watch?v=R87Qlq_wSY8&">https://youtube.com/watch?v=R87Qlq_wSY8&</a>
Man I wanted to do just this sort of thing 15 years ago but of course the sensors and processing power weren’t really small or powerful enough then.<p>So cool.