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Unread 17-11-2015, 21:06
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Poseidon5817 Poseidon5817 is offline
"Cool" Squad
AKA: Mitchel Stokes
FRC #5817 (Uni-Rex)
Team Role: Mentor
 
Join Date: Aug 2013
Rookie Year: 2014
Location: Clovis, CA
Posts: 337
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Using navX MXP to get robot velocity

From this thread:

Quote:
Originally Posted by Arhowk
I'd also like to know... In my experience most mouse only maintain about 95% accuracy (meaning that the same motion repeated an infinite number of times will have a 5% deviance in delta distance). At the start of the season I expected to integrate the accelerometer to obtain velocity, but it's noise is horrendous. If the mouse gets good data, than it might be a good option.
I'm assuming that Arhowk tried this with the roboRIO's built-in accelerometer. Has anyone tried something similar with accelerometer data from the navX MXP expansion board? If integrating that data can give a reasonably accurate velocity, I could see this being another solution for simple autonomous motion profiling, rather than using encoders on the drive.
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My FRC History:

2014 - Team 1671: Central Valley Regional Finalist and Chairman's Award Winner, Sacramento Regional Finalist, Archimedes Quarterfinalist
2015 - Team 1671: Central Valley Regional Semifinalist, Sacramento Regional Semifinalist and Chairman's Award Winner, Newton Winner, Einstein Winner
2016 - Team 5817: Central Valley Regional Finalist and Rookie All-Star, Orange County Regional Quarterfinalist and Rookie All-Star, Newton Division