My AR Drone is very good at holding its position < 5m altitude using its downward facing camera.
From what I've read ArduCopter is doesn't do a good job at holding position at low altitude.
Wouldn't it be cool to use AR Drone's system for low altitude position hold?
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I'm using AR.Drone as a platform, and trying to interface with ArduCopter via serial port between AR.Drone and Arduino.
AR.Drone has a set of AT commands as the API for applications to pilot it:
https://projects.ardrone.org/attachments/download/207/ARDrone_Devel...
I would like to turn AR.Drone as UAV with an Arduino attached to it and runnig ArduCopter. This requires:
1) Add more sensors lacked for AR.Drone onto Arduino: compass / barometer / GPS, and mix with AR.Drone's ultrasoic.
2) ArduCopter to send AT commands with pitch / roll / yaw PID outputs.
Would like a cut down version of ArduCopter which can run on Arduino Mini or Nano
I've used my arduCopter with gps position hold + sonar to keep it in place at low altitude...but of course..GPS is not very accurate so even with the latest arduCopterNG code it still moves around within a couple of meters.
We probably don't have the processing power on board arduCopter at the moment to make it as good as ARDrone but we might get close if we can do what marko did: http://www.diydrones.com/profiles/blogs/quad-position-hold-with-mou.... I'm actually working on trying to replicate this for arduCopter at the moment with some success but it's not quite there yet.