I have noticed that when winds are calm, the firmware snaps to North until the wind picks up again. This causes a problem with wind charts in 3rd party software and creates inaccurate wind charts showing a substantial amount of North wind when there was none. Any thoughts if there are any solutions? …

[image] johnmac78: Any thoughts if there are any solutions? I combined a couple threads here because they were both talking abou the same issue. And that issue is actually two issues, both of which are resolved at this point: Wind direction is undefined (null) when wind speed is zero. Yes…

The next firmware update will correct this “north bias” issue due to the “0” direction being included in the averaging even when speed is “0”.

Along the same line, I have an issue with Wind Direction. In my 40+ years in boating, aviation and Coast Guard, numeric compass direction is always referenced in 3 digits. It’s a little disconcerting to glance at the weather page and seeing 28 degrees in August. Maybe a third format for displayin…

i think the openings post is related to the fact that when there is no wind at all, the arrow still goes to the north, and doesn’t keep its last position. This is not related to the preference for north at low wind speeds (which was solved in the latest update)

David’s reply was in reply to post 4: Wind direction in calm air should NOT be zero

indeed, that is what I understood, but that is not what the opening post is about.

Like many posts here, it went off topic.

and then there was a third issue: leave the arrow in the same direction it was, at the time of the last valid (non zero speed) measurement of the direction. It wouldn’t be wrong, as there is no new direction to show. Showing the latest valid measurement at least conveys some info to the user. “A m…

@sunny , You have confused data from the Hub with displaying data. They are only slightly related.

have I? David is mentioning “wind direction is displayed as “—” when wind speed is zero”. and my suggestion is when wind direction is invalid because the speed is zero, to display the last valid measurement instead.

[image] sunny: leave the arrow in the same direction it was, at the time of the last valid (non zero speed) measurement of the direction Right, that’s an option we’ve chosen not to implement in the Smart Weather apps, but other application developers could certainly choose to do that. My own …

Wind Direction when winds are calm should not be zero

Tempest Owners Feature Requests

GaryFunk August 1, 2020, 3:44am 46

Blowing from the south.

Calculate wind vector-direction

Topic		Replies	Views
Calculate wind vector-direction Developers formula	43	5375	November 20, 2018
Wind direction in calm air should NOT be zero Feature Requests	3	1172	June 2, 2020
Sky wind data = totally calm Tempest Owners	21	1152	October 1, 2018
Incorrect Wind Direction follows Null data event Tempest Owners sky , wind	54	2995	May 5, 2021
Wind Direction Strongly Biased in Tempest to North? Tempest Owners wind , tempest-hardware	26	2205	September 3, 2020

Wind Direction when winds are calm should not be zero

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