This is cool, real time tracking from a drone1, written in only a handful of lines of python... Pick an area of the screen you're interested in tracking then, uh, keep track of it! So you could use this to adjust the position of the drone, keep the thing you're tracking in the centre of the picture to keep flying straight towards it.
Also from the same site I like the look of this tiny display2, attached to a tiny arduino.
arduino: Microcontroller, hardware prototyping platform, a tiny specialised computer.
Paul Clarke's weblog - I live in A small town, Kent. Married and dad to two, I'm a full stack web developr, + I do js / nodejs, some ruby, python, php ect ect. I like pubs, running, eating, home-automation and other diy jiggery-pokery, history, tree stuff, TV, squirrels, pirates, lego, and TIME TRAVEL.