N2K libraries?
Is there a discussion forum for the ttlappalainen N2K libraries? Or can we discuss here? My question is sort of SignalK-adjacent.
Venus Plugin stopping on CerboGX V3.30 / SK 2.50
The pre-installed Victron venus plugin stops delivering GX data within SignalK after a undefined period of time (after 2min or up to 4h). Other plugins are working flawless. I did not change the venus plugin settings.
Data sets are either internal data created by the CerboGX like
electrical.venus.totalPanelPower (venus.com.victronenergy.system)
electrical.venus.totalPanelCurrent (venus.com.victronenergy.system)
or delivered data from ET112...
/vessels/<RegExp>/navigation/state path
Subj doc does not have a list of possible values. And it's values is an arbitrary text, not a AIS spec phrases nor codes.
Is there a complete list of these values somewhere?...
Eniro / skippo
I managed to get some Swedish charts into the charts plugin. However, it seems the plugin does not cache them, at least not all of them. Since the charts' source is online, I risk getting blank squares instead of charts if the connection is bad. Is there a way to download charts (tilelayer) and store them on the local server?
How to connect NMEA0183 to rpi
I'm looking to link a lowrance link-6 s to a raspberry pi running openplotter so that I can use the GPS coords with OpenCPN.
The radio has 6 wires (2 speaker, 4 NMEA) in a single connector that I've not seen before. Is that a standard connector? how do I link it to the raspberry pi?...
engine RPM with pigpio library (edit: forget about pigpio)
Need help with an idea.
The idea is to get engine RPM data into SignalK via a python script and the pigpio library.
https://abyz.me.uk/rpi/pigpio/index.html
https://abyz.me.uk/rpi/pigpio/code/read_RPM_py.zip
The raw signal comes from the alternator and the script already has functionality to multiply to get from pulses to RPM and also for averaging. A piece of hardware is needed to connect to a GPIO pin, preferably using an opto....
Notification mechanism between plugins
I'd like signalk-logbook to be able to notify other plugins when there is a new log entry available. Possible consumers include postgsail (https://github.com/meri-imperiumi/signalk-logbook/issues/51) and a new plugin to print the log entries for "lights out" backup purposes with an Esc/POS receipt printer (https://github.com/meri-imperiumi/signalk-logbook/issues/42). Is there some eventing mechanism that we could utilise, or is announcing this via a Signal K path the way to go?
Daily Trip Logs
We're beginning our Pacific crossing in a few days and I'm looking for an easy and automatic way to provide daily reports.
Specifically, I would like to do noon to noon reports that list position, log, average speed, max speed, average wind speed, max wind speed.
What are some options to do this?...
Help troubleshooting Seatalk, autopilot errors for a relatively new user.
I keep getting alarms in FreeboardSK that I cannot track down, and do not seem to do anything...
Here are the two I get, I get the Unknown Seatalk every day basically. I have had my autopilot show 'Seatalk1 Fail' in the past, but not recently, and it would disengage.
I am asking here, because the alarms are not showing up on my boat, but in SignalK, in freeboardsk...
proprietary sentences?
What does SK do with proprietary sentences (or more generally, any data on the N2K network that doesn't fit into the schema)?
I am trying to help a friend interpret B&G rudder angle sensor data to make a more open autopilot for B&G boats. Apparently there are some proprietary sentences between the B&G angle sensor and the instruments, but the B&G sensors will not physically fit on his boat. B&G ignores PGN 127245 if it's not from a B&G sensor. I would like to install an SK RPI on his network and log data from the start to see if we can figure out what B&G expects and emulate it, but I don't have access to the boat or instruments so I can't just try it out....
Signal K and Raymarine Raynet (Ethernet)
Any one had the chance to analyze the Raynet protocol? could be cool using the new Raymarine Alpha displays with data gathered or produced by the Signal K server.
Magnetic Variation & headingTrue
Hi, I have openplotter set up with pypilot and I'm now able to see my headingMagnetic in SignalK. I'd love to also have headingTrue (e.g. for KIP's Wind Steering Display). It seems SignalK needs a source of magneticVariation. Neither of my GPSs seem to include it in their output, the key is there in SignalK as coming from my GPS, but its value is null. How do most people get variation data? It seems like there should be a plugin to compute it from WMM but I can't find anything.
signalk-logbook watch changes
Is there some way to log watch changes with the signalk-logbook plugin? I can see how to add or remove crew members but I was just looking for some way to log which crew member is on watch.
What is the meaning of the environment/wind/angleTrueGround ?
Subj.
The description is "True wind angle based on speed over ground". What is the difference from "Apparent wind angle"?...
N2K connectors
I have a couple of generic M12 connectors and I cannot seem to get them working on N2K. I'm using the attached diagrams. I have tried basic continuity testing for CAN-L and CAN-H (the center pin and pin 4), which works, but when I connect to RPI I get nothing (using candump). Can someone take a look at these connector diagrams and let me know if they look correct?
How important is galvanic isolation?
I'm considering using a Pi with a CAN hat that also provides power. However, that hat doesn't provide galvanic isolation. But that may not be important because it does provide power, so the only ground that the Pi will see is from the NMEA network.
https://copperhilltech.com/pican-m-nmea-0183-nmea-2000-hat-for-raspberry-pi-with-smps/
Basically, the Pi will only be attached to the NMEA 2k network for power and data, and will not be connected to any other power source....
Are there any keys to provide information on bilge pump activations or high water activations?
I have a bilge pump sensor, and I'd like to provide information via signalk on bilge pump activations and high water notifications. Are there keys for this somewhere in the schema? If not, what group would these fall under?
VHW sentence creation from signalk data
I'm trying to help a guy on cruisersforum get VHW nmea0183 sentence created from speedthoughwater in the signalk-to-nmea0183 app > he doesn't have a heading signalk delta, what that mean the VHW won't get created?
0183 heading
$HCHDM,138.01,M
Is this a valid NMEA 0183 sentence (Heading Magnetic)? kplex seems to ignore it....
Backup of Kip from CerboGX to PC
I'm running Kip on a Victron CerboGX. After a intensive configuration in 2023 I lost my Kip-screens because of an update of the VictronOS (reset of SignalK because of data at 100%).
I recently I realized a new set of instrument panels. I'm in search of a simple way creating a backup of the Kip data to my PC or cloud - without hacking via PUTTY.
I'm a user not a dev. A copy via Storage/Copy/Remote to local (W11 PC using Firefox) didn't create any file-set I can move to my cloud-backup.
How can I perform a backup using the Kip UI?...