Arduino “having11” Guy created an autonomous robot to hunt down and destroy dandelions.
After being frustrated a dandelions out pacing his grass between mows, Arduino Guy (who also does project consulting for) built a robot using a Devastator Tank Cassis from DFRobots, a Pixy2 Camera, and a Teensy 3.5, to roam a yard to identify dandelions and chop them down.
Additional details as wells as the code is available on this Hackster.io project page.