I'm looking for a way to somehow feed external alarm
conditions to OpenCPN
via NMEA0183, and to display or even acknowledge this alarms.
Let me explain what I'm looking for.
I have some seatalk
instruments, that can emit alarms.
Things like "Depth transducer defective", "Wind shift alarm"," Radar
monitoring alarm", "gps failure" etc.
I have built a multiplexer with bridge function, that converts seatalk
data into NMEA
. This NMEA
data are than feed to openCPN
That works well with "normal" data and "normal" NMEA sentences. Things like depth
, speed, postion, waypoint ....
But now I'm looking for a NMEA sentence, that represents different alarm's.
It would be great, if openCPN could display this external alarms and maybe even offer a button for alarm
The acknowledge could be sent from the PC to the converter and back to the seatalk devices.
This would require another NMEA sentence for alarm ack.
- Does anyone know of a "Alarm-Nmea-Sentence" and a "Alarm-Acknowledge-Sentence" ?
- If we should find such a sentence - any Ideas on how to implement this functions into openCPN ?
- Would something like that be interesting to other OpenCPN users ? Or am I the only one who would like have it ?
Thank's for any ideas.