Can't put any code here yet :) hackathon starts 1930 PDT on March 28th, so stay tuned.
Makathon : http://www.makathon.org/
Hackster project link : http://www.hackster.io/machinaut/kite-power-autopilot1
I'm hoping this is a nice departure from 3d fixed-wing and multirotor autopilot C&D. This thing literally has ONE degree of control (kite bar angle), which is basically "turn left"/"turn right". It'll also be fun to try to build everything and get it flying in a couple days.