Topic: Anyone notice a sudden barometer error on WS-2000?

[Bigfootbuilt]

It seems to have happened on Jan 8th where the barometer spiked to over .20 in for no reason and has been out of calibration with nearby stations ever since. In the calibration page, there is nowhere to adjust the relative pressure, only the absolute pressure, which is correct. Now I am attempting to calibrate by making slight adjustments to the altitude setting. Was there a firmware update that might've thrown it off?

[Rocketman]

Are you running firmware 2.0.0 ?
If, so it has upgraded

[Bigfootbuilt]

Yes, 2.0. When was it released? Do you know? I can't find the release notes.

[Rocketman]

HP2550&&HP2560 V2.0.0_2025-01-07
1.The relative barometer algorithm is changed to calculate based on absolute barometer,
outdoor temperature and altitude. And change the Rel Barometer setting to Altitude for REL.
2.Supports LDS01 laser distance sensors.

you must have the automatic update ticked in the firmware update .

[Bigfootbuilt]

Thanks for the info. Ya, that's what happened. Mine must've updated right at midnight Jan 8th because that's when the barometer spiked. I've been trying to get it back right for over an hour.

[Gyvate]

you cannot get it back - except by applying an older upgrade via the micro SD card.
But then you are also back to the fixed offset method which is not accurate beyond the moment when you create it.
This offset (in fact the normalized sea level pressure) changes with temperature but in the fixed offset this is not considered.
Did you enter your altitude on the calibration page (REL altitude is the entry) ?
If not, this may explain the jump.
Altitude of your WH32B indoor T&HP sensor.
Altitude = ground elevation plus (barometer location) height above ground.

I am not sure if Ambient already offers the V. 2.0.0 device firmware upgrade for the SD card (they tend to lag behind), but if you have a newer console model with the new WiFi modem (recognizable by the WebUI those have) and have tagged the OTA auto-upgrade, it may just have happened.

EDIT:
Addendum
1. Ambient still only offer very old device firmware in their firmware download center: 1.9.0
that version is almost two years old ... (published end March 2023 by the manufacturer)
However, many feature changes of the later versions were not taken on by Ambient - the dynamic Sea Level Pressure (V. 2.0.0) is taken by them
2. Ambient is telling funny stories of having to rename the user.bin file to Factory.bin when copying it to the SD card
this is a myth - you CAN do that and it will still work, but do NOT NEED to do this. Just copy the unpacked user.bin file to the root directory of the SD card (i.e. not into a possibly existing directory) and insert it - the console will directly recognize it and start the upgrade procedure

[Bigfootbuilt]

Thanks for the info. When i said "trying to get it back" i should have been more specific. I meant getting correct readings back. Previois firmware didn't have an entry for altitude, just abs and rel pressure. They got rid of rel pressure calibration and changed it to altitude. I entered my altitude but readings were atill off.I live just a couple of miles from the NWS and trying to match their readings but they are always over a half hour late reporting observations which change by the time its released. Aggravating but i think its finally accurate. Thanks for the info tho. It'll be useful in the fiture.

[Platokidd]

It seems to have happened on Jan 8th where the barometer spiked to over .20 in for no reason and has been out of calibration with nearby stations ever since. In the calibration page, there is nowhere to adjust the relative pressure, only the absolute pressure, which is correct. Now I am attempting to calibrate by making slight adjustments to the altitude setting. Was there a firmware update that might've thrown it off?

YES.
Think you may find some of this thread worth reading.

https://www.wxforum.net/index.php?topic=48005.0