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Modified FRS radio for 100km+ ?

Started this discussion. Last reply by Michael Pursifull Oct 20, 2011. 2 Replies

Glider with fixed glide ratio and rudder only?

Started this discussion. Last reply by Richard Apr 30, 2012. 12 Replies

Understanding the limitation of processing power with IMU's

Started this discussion. Last reply by Chris Anderson Feb 27, 2010. 7 Replies


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Nathan's Blog

Minuteman AVC 2012

Posted on June 19, 2012 at 6:30pm 12 Comments

This is another write-up of my Sparkfun AVC experience. This year I worked closely with Roadrunner, who ran a similar vehicle and the same code. We collaborated using google code and SVN, which made us feel like "real" programmers.…

More details on Minuteman

Posted on April 28, 2011 at 5:30pm 7 Comments

GPS vs. Dead Reckoning
So, I decided to try the bare minimum first, then add complexity as needed. It turned out that dead-reckoning worked pretty well. With some refinements, I think it will work REALLY well. Also I came to the conclusion that heavy reliance on GPS will doom any bot to slow speeds. The…

Sparkfun AVC summary from Minuteman--LONG

Posted on April 25, 2011 at 9:00pm 8 Comments

Minuteman in the pits


Lining up for the final heat





Team Minuteman: Sparkfun AVC ground vehicle--Ardupilot-based

Posted on April 20, 2011 at 10:30am 7 Comments

I will be competing in the Sparkfun AVC competition this year using Ardupilot hardware in a ground vehicle. My car is called Minuteman, and works on simple dead reckoning. It uses Ardupilot hardware, with an optical encoder and a gyro as the only sensors. No GPS, no compass, no proximity sensors. Testing has been really simplified by using the ardupilot, because…


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