Kal
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Latest Activity

Kal commented on crystal garris's blog post The Techpods have landed!
"Great work! Looking forward to heading more about these. Might be my next purchase!"
Mar 3, 2013
Kal commented on IKE's blog post Quads Throwing and catching an inverted pendulum
"@Krysztof It doesn't even have to be that high-res. You could couple a panoramic mirror with a decent processor to do object & position recognition and measure optical flow. Most of the technology is probably available today -- the hard…"
Feb 25, 2013
Kal commented on IKE's blog post Quads Throwing and catching an inverted pendulum
"@Krysztof I'm not sure that we're too far off from putting this kind of image processing equipment on board."
Feb 25, 2013
Kal replied to Neil Ohnemus's discussion Question on using multiple 3dr radios to control multiple drones
"Hi folks, Any feedback on this? We're wondering about the same question. We're using a 433MHZ, but it shouldn't make a difference. Thanks. "
Feb 20, 2013
Kal commented on Christiaan van Vollenstee's blog post Another APM rebranding
"Hey, if you want to build on PX4 that's great. Go ahead and do it - no one is stopping you. If the community believes in what you're doing, they'll contribute to it as well. I don't think complaining and making sarcastic…"
Feb 16, 2013
Kal commented on Christiaan van Vollenstee's blog post Another APM rebranding
"J, I know you love to post this sort of stuff all over the forum, but the community is much bigger than 3DR. The source code is out there. If 3DR takes it in a direction the community doesn't like (or you don't like), it can be forked.…"
Feb 16, 2013
Kal commented on Gary McCray's blog post Vibration Control Wiki Section Started for Better or Worse
"Nice work!"
Feb 16, 2013
Kal commented on Jethro Hazelhurst's blog post Are Flouride Batteries the Future?
"Greg, yes looks pretty interesting. Hydrogen might another area to potentially explore when we're looking at far-off stuff. I was interested in the more immediate prospect of switching to lithium ion :)"
Feb 15, 2013
Kal commented on Jethro Hazelhurst's blog post Are Flouride Batteries the Future?
"Tommy, do these batteries output enough current for quadcopter engines? Have been interested in switching to Lithium ion."
Feb 15, 2013
Kal replied to Rik Bootsman's discussion maiden voyage of protei 009 in the group Sailing Drone
"Nice work! What are your updates on this?"
Feb 12, 2013
Kal commented on Chris Anderson's blog post The Economist on thermal-seeking drones
"This is brilliant -- really looking forward to testing some of this out (if? once?) it can be implemented on ArduPlane. "
Feb 12, 2013
Kal commented on weelian soh's blog post Possible solution to getting Jello Free GoPro Hero 3 Black Edition video on multicopters
"Looks like some pretty advanced research you did into this. Seem might seem like a pretty basic question, but why not invest in a good vibration-absorbing or stabilized mount for the camera and dampen vibration there rather than in each motor? It…"
Feb 11, 2013
Kal replied to Steven Gates's discussion Obstacle Avoidance
"Hi Guang Yao, I take it you worked on this project - congrats. Great to see all the stuff that's coming out of Singapore. As I understand, there is some IR obstacle avoidance implemented on the ArduRover. Is your implementation…"
Feb 11, 2013
Kal replied to Harley Engholm's discussion Altitude hold
"Hi Davoo, I'm experiencing exactly the same problem using the latest firmware and sonar. Loiter works nicely but the quad slowly descends on altitude hold. The logs seem to indicate it knows it's descending. It's been a very puzzling…"
Feb 11, 2013
Kal replied to Steven Gates's discussion Obstacle Avoidance
"Hi Steven, We're looking at using doing sonar-based obstacle avoidance using 5-6 Maxbotix range finders and writing some code for it. Would you mind sharing? It would be great if we didn't have to write it from scratch."
Feb 11, 2013
Kal commented on John Wiseman's blog post MeCam: A $49 voice-controlled quadrotor
"I think it's pretty telling that the only feature they actually demo in the video is that it can take off. Vocal recognition doesn't strike me as the most difficult part as much as the image processing required to follow a person. Again,…"
Jan 26, 2013

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