Meet Sweep: a LiDAR sensor that makes your drones and robots smarter. It offers 360-degree sensing, making it possible for your robots to avoid obstacles and map their surroundings. This is also a perfect solution for students exploring mapping and navigation problems.
Sweep can be used to create a virtual curtain, sensing when something interrupts a particular area. It can also track people moving within a space. Yet another interesting Kickstarter project.