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Old Oct 21, 2014, 10:57 PM
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rrcdoug's Avatar
Canada, BC, Kelowna
Joined Aug 2010
204 Posts
Full scale pilots have to adjust there altimiters before they fly. Air pressure is constantly drifting with the weather. I think there is a reset telemetry function somewhere in your system. It should zero your altimeter at the field level. My taranis is very well behaved in this respect. It zeros the altimiter every time I turn the Tx on. Without this adjustment, the pressure altimeter would read height above sea level +/- 200 meters because of weather.
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Old Oct 23, 2014, 04:49 PM
Registered User
France Versailles
Joined Jul 2009
9 Posts
Need help on frame send by the variometer FVAS-02H

Hello,

I need some help to understand where the altitude data are hide in the frames recived from the FVAS-02, pluged on a D8R .

Example of some user data frame I get :
7E FD 02 00 15 7E 7E
7E FD 05 01 5E 7E 7E
7E FD 06 02 30 7E 02 00 30 7E 77
7E FD 06 03 5E 7E 03 00 5E 7E 78
7E FD 02 04 15 7E 7E
7E FD 04 05 5E 7E 7E
7E FD 06 06 5E 7E 06 FF 5E 7E 78
7E FD 06 07 5E 7E 07 00 5E 7E 77
7E FD 02 08 15 7E 7E
7E FD 01 09 5E 7E
7E FD 06 0A 21 7E 0A 30 16 7E 7D 97
7E FD 06 0C 5E 7E 0C 5E 5E 7E 7D 97
7E FD 06 0E 5E 7E 0E 00 5E 7E 77
7E FD 02 0F 15 7E 7E

Thanks for your help.
Francois
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Old Yesterday, 03:07 AM
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Kilrah's Avatar
United Arab Emirates, Dubai
Joined Sep 2006
4,821 Posts
Download the sensor hub protocol doc from the FrSky website, or look at the decoder code in OpenTX.
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