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MultiNav Pro+ sensors module - barometer vs GNSS altitude, which to trust?

KevinJune 13, 2026
Been working on a UAV logging build using the sensors module alongside the GNSS module and ran into something I wasn't expecting. The air pressure sensor is giving me altitude readings that drift noticeably from what the GNSS is reporting, sometimes by 8-10 meters, and I'm trying to figure out which one I should actually be weighting more heavily in my fusion algorithm, or if I should even be trusting either one independently at all.
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