Pogo Stick Microcopter Bounces off Floors and Walls

We tend to think about hopping robots from the ground up. That is, they start on the ground, and then, by hopping, incorporate a aerial phase into their locomotion. But there’s no reason why aerial robots can’t approach hopping from the other direction, by adding a hopping ground phase to flight. Hopcopter is the first robot that I’ve ever seen give this a try, and it’s remarkably effective, combining a tiny quadrotor with a springy leg to hop hop hop all over the place.S