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Male


Please tell us a bit about your UAV interest

Quadrocopter control problems involving computer vision and learning algorithms.


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Tampa


Activity Feed

David Mathias replied to Cala's discussion Rangefinders: Lidar Lite V2, Lightware, and others, need recommendations in ArduCopter User Group
"@LaserDev - thanks very much.  Our SF11 arrived just yesterday so I'll ping Robert to see if we can figure something out.  Appreciate the help."
Mar 22, 2016
David Mathias replied to Cala's discussion Rangefinders: Lidar Lite V2, Lightware, and others, need recommendations in ArduCopter User Group
"@LaserDev Do you have any experience connecting an SF11 directly to a companion computer?  What connection do you recommend.  I would have done i2c.  However, I'm using an Odroid XU4 and the i2c is horrible.  It's a good board in general but the i2c…"
Mar 19, 2016
David Mathias replied to David Mathias's discussion Guided mode velocity and steering control in ArduRover User Group
"Can anyone share insights on this? Should I ask in a different forum? Any help is greatly appreciated."
Mar 11, 2016
David Mathias posted a discussion in ArduRover User Group
Hi everyone.  For about a year and a half, I've been working with Iris+ drones on projects involving computer vision, and pathfinding using genetic algorithms.  A couple of months ago, I decided to branch out and try a rover.  I bought an Axial SX10…
Mar 7, 2016
David Mathias replied to Cala's discussion Rangefinders: Lidar Lite V2, Lightware, and others, need recommendations in ArduCopter User Group
"How wide is the area of detection?  I didn't see that mentioned in the specs."
Feb 24, 2016
David Mathias replied to Cala's discussion Rangefinders: Lidar Lite V2, Lightware, and others, need recommendations in ArduCopter User Group
"I'm curious, why is the SF11/C not good for collision avoidance?"
Feb 22, 2016
David Mathias replied to Cala's discussion Rangefinders: Lidar Lite V2, Lightware, and others, need recommendations in ArduCopter User Group
"Since this thread has meandered a bit, I hope that no one minds if I ask a somewhat related question.
I'm connecting a LidarLite v2 to an Odroid XU4 to use for obstacle detection.  This will allow us to incorporate the Lidar data into our path…"
Feb 22, 2016
David Mathias replied to Cala's discussion Rangefinders: Lidar Lite V2, Lightware, and others, need recommendations in ArduCopter User Group
"That's a good question.  We're still working on that part. :-)"
Feb 21, 2016
David Mathias replied to Cala's discussion Rangefinders: Lidar Lite V2, Lightware, and others, need recommendations in ArduCopter User Group
"@Doug, thanks.  I hope they have time to include it for 3.4."
Feb 20, 2016
David Mathias replied to Cala's discussion Rangefinders: Lidar Lite V2, Lightware, and others, need recommendations in ArduCopter User Group
"Thanks @LaserDev.  My students and I write software to control our MAVs.  We almost never fly manually so Guided mode support is important.  Ultimately, what we want to do is incorporate two Lidar units -- one for altitude and the other facing…"
Feb 20, 2016
David Mathias replied to Cala's discussion Rangefinders: Lidar Lite V2, Lightware, and others, need recommendations in ArduCopter User Group
"Acroname emailed that they will have stock for the SF11/C later this week. I just placed an order."
Feb 15, 2016
David Mathias replied to Cala's discussion Rangefinders: Lidar Lite V2, Lightware, and others, need recommendations in ArduCopter User Group
"@LaserDev  Thanks for your reply.  No need for an apology as far as I'm concerned.  I don't mind waiting a few weeks for a good product.
Does anyone know if Guided mode rangefinder support is still a possibility in AC 3.4?  I asked elsewhere but…"
Feb 15, 2016
David Mathias replied to Cala's discussion Rangefinders: Lidar Lite V2, Lightware, and others, need recommendations in ArduCopter User Group
"According to PulsedLight, there won't be any more LidarLite v2.  They indicated (via email) that v3 will be out in the 2nd quarter of this year.
The TeraRanger looks like a nice unit.  The only thing I don't like is that it requires 10-20V power.  I…"
Feb 14, 2016
David Mathias replied to Cala's discussion Rangefinders: Lidar Lite V2, Lightware, and others, need recommendations in ArduCopter User Group
"I contacted PulsedLight about this a couple of days ago. Their reply mentioned the Garmin acquisition and said that LidarLite v3 will appear in the 2nd quarter of this year."
Feb 13, 2016
David Mathias replied to David Mathias's discussion LIDAR Lite default behavior in ArduRover User Group
Dec 29, 2015
David Mathias posted a discussion in ArduRover User Group
Hi everyone. I'm new to Rover, coming from Copter. In APM Copter, the default use for LIDAR Lite is for altitude. The wiki mentions that APM Rover also supports LIDAR. I'm guessing that altitude isn't the use and that its for obstacle avoidance but…
Dec 28, 2015
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