Dashboard vs XDR,MTA,MDA

[BlackSea]

Hi,

I would like to integrate the air pressure and temperature sensor in dashboard. I take example from wiki
https://opencpn.org/wiki/dokuwiki/do...nmea_sentences

$IIXDR,C,19.52,C,TempAir*3D 
$IIXDR,P,1.02481,B,Barometer*0D

that does not work. s. Attachment
Is XDR implemented in OpenCPN?
Then I found an example of Sean (pypilot), where he uses the MTA & MDA sentences

$ARMDA,,,1.00000,B,,,,,,,,,,,,,,,,*36
$ARMTA,19.50,C*2B

And it's working. s. Attachment

As far as I know the MDA is outdated and should not be used.
Is that behaving wanted? Or is that a bug?

[Hakan]

Blacksea...
XDR in the format of your examples would be understood by Dashboard, but the checksum in both your examples seams wrong. The latter would read: $IIXDR,P,1.02481,B,Barometer*29
(See for example here: NMEA MTK checksum calculator)

The MDA bay be outdated for new implementation but is of course still used by old equipment. So consequently supported by OCPN.
Håkan

[BlackSea]

Hakan,

thx for your advantage. Indeed both seqs are wrong. I haven't proof wiki example...
Right example schould be

$IIXDR,C,19.52,C,TempAir*19
$IIXDR,P,1.02481,B,Barometer*29

[rgleason]

NMEAconverter_pi will help.
1. Prepare Barometer Sensor Output for Dashboard