Erle Robotic's new flight controller is $75 but the fun bit is the maker tutorial "Build Your Own Smart Pi Zero Drone". All components listed, ready to fly, for less than $200.

Flight controllers for quadcopters and other drones are incredible pieces of engineering. Not only do these boards keep an aircraft level, they do so while keeping the drone in one place, or reading a GPS sensor and flying it from waypoint to waypoint. The latest of these flight controllers is built on everyone’s favorite $5 computer, the Raspberry Pi Zero.

Awesome! Great to see new products that allow users to create their own tools without spending large amounts of money