Derived Data, check-sums and iKommunicate

[Chris Collin]

I have an rpi4 running signalk and derived data plugin.  Running sample data everything works ok. 

On the boat I have an ikommunicate and a Autonnic A5120 wind sensor. I had problems with data being recieved from the wind sensor to the iKommunicate. Digital Yacht told me that the Autonnic wind sensor does not send a checksum, and to disable the checksum requirement within the iKommunicate. (This worked) They informed me it could cause some issues elsewhere.

Does the derived data plugin require a checksum to be sent with the wind data.  Any suggestions.  Chris

[Teppo Kurki]

No. Derived data works on signalk k data and does not care where the data is coming from, as long as it is converted to signal k. Sk server nmea0183 connections can be configured to ignore checksums.

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