David Dewey
  • Male
  • Port Townsend, WA
  • United States
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Profile Information

About Me:
My background and education is in software engineering. I'm also co-owner of a small business that does product development and manufacturing, global sourcing, and retail sales on Amazon.com.
Please tell us a bit about your UAV interest
I'm interested in software and hardware development for anything that flies.
Hometown:
Port Townsend

David Dewey's Blog

New SplineNav 0.3: Smoother Yaw, and Manual Yaw Override

Posted on October 30, 2013 at 4:30am 32 Comments

 

After a few months of hard work, SplineNav 0.3 is now ready to fly! This SplineNav release started with the goal of simply reducing the yaw jitter issues of SplineNav 0.2, but in the end it turned into a major rewrite of the code.

 

New Features:

 

  • Smoother Yaw: Updates x and y spline derivative calculations faster, in a separate loop, for a more precise yaw control. Uses a fast…
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New SplineNav Version 0.2 on a 63 km/h Tour of Chinese Lotus Pond

Posted on July 19, 2013 at 3:52am 33 Comments



I've now finished coding up SplineNav version 0.2. It's almost a complete rewrite from version 0.1. Besides flying smoother and using processor resources more efficiently, it now restricts maximum speed to prevent lag. For example, if you're flying fast into a strong headwind, then altitude may…

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Flying 3D Spline Curves between Waypoints with ArduCopter 3.0

Posted on June 15, 2013 at 5:00am 62 Comments

Figure 1: Mission Planner waypoints and telemetry track after 3 spline…
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ArduPhantom: APM ArduCopter in a DJI Phantom Airframe

Posted on April 9, 2013 at 4:00am 55 Comments

Figure 1: ArduPhantom Night…
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Comment Wall (2 comments)

At 1:37am on April 26, 2013, Limj said…

你好,我常州的李梦军。

我是一名老师。惭愧的是APM我这里还没开始玩,希望有机会向您请教。

At 4:34am on April 4, 2016, Marek D. said…

Hi David, Do you know with which method I can read out the current yaw of a Copter? We tried ahrs.yaw, ahrs.get_yaw(), but the results are somehow not usable.

thanks for any advice, Marek

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