0 ALT HOLD problem Posted by Gareth Rens on October 19, 2011 at 10:32am Hey Guys, My altitude hold works perfectly over bricks or hard surfaces. But doesnt work nicely over grass. Am I doing something wrong? Thanks G You need to be a member of diydrones to add comments! Join diydrones Email me when people reply – Follow
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Yeah that sonar is not very good. Fine on Hard surfaces, but not grass.
We recommend the MB1200 XL EZ0 - it's omni directional so tilt doesn't matter, and it's powerful so it has better response over grass.
http://store.diydrones.com/MB1200_XL_MaxSonar_EZ0_p/ac-0004-15.htm
To fly over grass, you have to paint your frame green to fool nature into thinking it is not a space invader. Then the ionizing green reflected light from the grass will be easier to detect from your sonar. ;-)