I want to get a propeller to get a helicopter to hover about 4-5 feet above the ground. I am trying to figure about how to do so, should i use a pressure sensor? Ping? Infared Distance Sensor? Any links to projects with good desriptions and code examples? Thanks so much everyone!

Maintain Hover At Given Height

kg4wsv November 9, 2012, 2:25pm 6

Google Ardupilot Mega.

They use barometric pressure for higher (more than a few feet) altitudes, and sonar near the ground.

-j

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