"any progress?"

"Kate,     Well...that pelican UAV is very advanced.  Certainly they spent a lot more time and effort on it than I did so I'm sure they're solution is much more robust than what I put…"

"hey Randy, Is that obstacle avoidance code in the ArduCopterNG code as effective as in the above video?"

"Running Chrome, are we? I get the same thing once in a while.  Just hit f5 to reload the page."

"Is this forum still working? I also trying to find out how to do obstacle avoidance. Im using IR sensors. I try out the rangefinder code. I got no luck.Do you guys know how to setup the motor? How to declare the motor?"

"Hi all,   I am also currently trying to implement some form of obstacle avoidance by using either ultrasonic sensors or IR sensors. Does any one have any luck with those yet?   The code in Arducopter RC2 code looks fine to implement. Is…"

"It was actually implemented but never fully tested in the old ArduCopterNG code.  you can see how it was suppose to work by checking out the obstacle_avoidance code in Navigation.pde.   Now I don't know if that was what was used in…"

"I asked directly both video releasers a couple of days ago, but no reply until now  :/"

"Do you know who has implementation details on these? I have seen the first vide before, and I think I did not find details."

"<iframe width="420" height="315" src="http://www.youtube.com/embed/BFMt7YJciDs" frameborder="0" allowfullscreen></iframe>   <iframe width="560" height="315"…"

"D'oh.    Because I didn't think of the i2c bus... Thanks.  My life got simpler."

"Nigel, Why not use the i2c bus I have a 2nd CPU processing sonar data and communicating by i2c to the APM in a non blocking way. This allows the sonar CPU to run as fast as it likes to collect and filterr the data. While the APM does it's thing…"

"Interesting.  I've been thinking of doing this by having a separate Arduino acting as a sensor decoder/multiplexor/thinker. The idea being that the collision avoidance/"where am I?" low-level stuff is handled by a dedicated…"

"Randy, I agree. I see collision avoidance as being a force that pushes against the aircraft to avoid the obstacle. If the user / control system pushes back then you continue to move towards the obstacle, the closer you get the stronger the force. We…"

"You  can get about 7 meters with the maxbotix sensors.  The I2C ones from Leon's post (that andrew quotes above) are 6m..maybe reliability starts to trail off before then..not sure...maybe you only get 3m  Anyway, that's…"

"This getting interesting now that you have a prototype to test sonar sensors & routines with. What range is expected? Will there be time for emergency maneuvers? I have 3 ports for I2C on my APMs, I use 4 swiss pin sockets on top and bottom of…"