Discussions

external barometer for PIXHAWK

Posted by ChrisAT on March 1, 2017 at 8:05am

Hello,

I’m trying to build a helicopter which can be operated under extreme environmental conditions (high humidity and light rain). For this reason I’d like to protect the autopilot in a watertight box. Of course this is a problem for the internal barometer. So my question are there external barometers available for PIXHAWK? Rainproof would be perfect?

I am grateful for any information!

Chris

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Replies

Derek Puzzuoli April 3, 2019 at 8:55pm

@Thomas: I liked your original response better. ;)
Derek Puzzuoli April 3, 2019 at 7:03am

Thanks again Thomas! I’ll let you know how things work out.
Derek Puzzuoli April 2, 2019 at 7:47am

Thanks Thomas. Modifying Arduxxxx will likely be where I have the most trouble, but I’m looking into what you sent and will report back with results.
Derek Puzzuoli April 1, 2019 at 11:32pm

I have a similar problem. Did you manage to sort out a solution to disabling the on board barometers and reading an external?
peter morris July 12, 2017 at 8:16pm

A mechanical solution may be simpler .... if your waterproof container is not rigid, the internal pressure will stay the same as outside. On a rigid container, you can drill a hole and glue on a loose piece of rubber balloon to achieve the same effect... I've done that successfully in the past, but eventually your balloon will perish.

Or maybe a ventilation tube from the top of the container with the open end a few centimetres below it would be enough for you.

Cheers

Pete
Robert Hoermann July 7, 2017 at 1:19pm

Hmm, sounds interesting.

Could one use the "normal" pitot tube sensor as an external barometer outside of the box? ...as it has two little barometers, one as static and the other for the dynamic pressure.

Just an idea.

Robert