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dndx / pitot

A customizable aviation information receiver
GNU General Public License v3.0
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Altitude not correct with RY385 GPS varies -1000 to 323K feet #6

Closed D35Bonanza closed 7 years ago

D35Bonanza commented 7 years ago

The altitude ends up at 300K ft at times. It could be the GPS is not lockup yet after restart. Does pitot require a Baro sensor for altitude correction ?

dndx commented 7 years ago

That is quite strange. I have never seen that before. Pitot uses the MSL altitude fed from the GPS, not the baro sensor.

D35Bonanza commented 7 years ago

Yes I know, It may be the baro sensor can be used as a cross check it, one could set it like an altimeter I have never seen this also, Stratux was reporting the correct altitude, it could have been the ry385, It is now normal

dndx commented 7 years ago

We may use the built-in baro sensor of RY83x at some point. If there is a good driver for it in Rust, that would be even better.

I did notice that during bad satellite reception, the GPS altitude varies a lot. This is normal as vertical accuracy of GPS is affected by bad signal more than horizontal.

Closing this for now, unless evidence showing bug elsewhere.