Obstacle Avoidance?

Has anyone had any success in getting your quad to have any obstacle avoidance abilities? I'm not talking about any complex pathing, but rather (at least in my case) will allow for low altitude forward flight, and if a weed or bush is detected in front of it, it will increase altitude a bit to avoid hitting it, or move over a few feet.. or if something excessive (wall, building) it will active a RTL parameter?

Even some type of forward facing sonar, optical flow sensor, or even laser scanner perhaps?

I'm brainstorming here!

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  • 100KM

    Making a surveillance drone ?  

    I do recall some experiments with having the copter land on infrared beacons.  Don't know if I can find that again.  I think it was in the blogs on this site and I find this site difficult to search.

  • 100KM

    search and you will find :-)

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