Signal K

Signal K is an ecosystem for free and open source universal marine data exchange and software.

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Signal K

Signal K is an ecosystem for free and open source universal marine data exchange and software.

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server

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nmea2000

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Greg Young

7/22/2025

Greg Young - MQTT text string?I have a device...

MQTT text string? I have a device (ESP32) that is sending data to signalk MQTT broker, for values (eg /vessels/self/electrical/generator/Oil/pressure ) which works fine. however Im also trying to send a text string which is the generator status (eg “Running”) ...

Jason_SV.Apres|Hunter336|WI

7/21/2025

Jason_SV.Apres|Hunter336|WI - is anyone using '...

is anyone using 'signalk-data-dejitter'?

barnaclebill

7/19/2025

barnaclebill - I know it should be obvious but ...

I know it should be obvious but I cannot figure out how to add a new route in Freeboard SK. When I click on Routes I see one that I created before (no idea how) but no "+" or anything similar.

barnaclebill

7/18/2025

barnaclebill - If a plugin like signalk-derived...

If a plugin like signalk-derived-data doesn't have all of the source data specified in "derivedFrom", will the calculation not happen? Asking because I modified the trueWind calc to still calculate TWA even if headTrue is null, but still not getting TWA (when SK has no heading but has AWA, AWS, and STW).

Bram

7/15/2025

Bram - I have signalk-mqtt-gw configured to con...

I have signalk-mqtt-gw configured to connect to my home assistant mqtt broker. I would like to send only a couple of path (to start with navigation.position and huawei, both on self). But it keeps sending all changes. I've set "data to send to remote" to "3 self paths in JSON format" and than configured the two paths. Is there something i am missing why it is not just limiting it to those two paths?

Captain

7/15/2025

Captain - I'm thinking of writing a simple plug...

I'm thinking of writing a simple plugin that would give the user a way to calculate synthetic paths based on a simple formula. Something like this:

electrical.dc.0.load.current = (electrical.solar.0.current + electrical.solar.1.current + electrical.alternators.0.current) - electrical.batteries.0.current

electrical.dc.0.load.current = (electrical.solar.0.current + electrical.solar.1.current + electrical.alternators.0.current) - electrical.batteries.0.current

Or maybe a spreadsheet style syntax....

Lille Ø

7/14/2025

Lille Ø - Still a little bit rough around the e...

Still a little bit rough around the edges, but there's now a plugin to integrate Signal K with the Meshtastic LoRa mesh network. What now works: * Updating Meshtastic node position from Signal K * Sending Signal K alerts as texts to a configured set of Meshtastic nodes * Sharing telemetry (wind, temperature, etc) to the mesh * Controlling digital switching with text messages...

Scott Bender

7/12/2025

Scott Bender - If you are a author of a plugin ...

If you are a author of a plugin that sends NMEA 2000 data via nmea2000JsonOut or gets it via the N2KAnalyzerOut events. Please pipe in here. I would like to get input on the canboatjs 3.x changes and get you moving there.

motamman

7/11/2025

motamman - The system has three components: A c...

The system has three components: A command builder that creates PUT-enabled bool paths, such as commands.capturePassage or commands.captureAnchor, for example. (I use KIP to toggle these on and off.) An archive/data manager listens for regimen changes (capture commands). When true, it saves the subscribing paths’ data to disk. I use the Signalk path as a file system path. So vessels.urn:mrm:uni:mmsi:338043907.navigation.position is stored as ~/.signalk/data/vessels./urn_mrm_uni_mms_338043907/navigation/position/signalk_data_2025-07-08T1025.parquet (That data is buffered and written episodically.) Finally, a Signalk web app/plugin manages a Python-based api server. Any path that exists on the file system automatically gets an endpoint and can be filtered based on dates and values or date/value ranges. Custom queries are created using the plug-in management by assigning custom SQL to an ID, which in turn receives a unique endpoint. I'm not sure if what I've built here is helpful to anyone but me. However, I do believe this has significant advantages over InfluxDB, under certain circumstances, and it could easily integrate with the playback and history API and even with Grafana. ...

motamman

7/11/2025

motamman - I have been experimenting with a Sig...

I have been experimenting with a Signalk web app/plugin/python API that archives paths as Parquet files based on a configurable regimen system that can be toggled on and off. For example, if the regimen's capturePassage is true, it would capture a custom list of paths, such as navigation.position and navigation.attitude, courseOverGround, speedOverGround, headingMagnetic, etc. The list could be as long as the number of paths on the server. And the number of capture regimens is nearly infinite (captureAnchor, captureThisIsAFairyTale, etc.) This idea stemmed from a desire to capture AIS data of passing vessels and correlate various parameters, such as SOG, COG, distanceToSelf, to my boat’s heave, wave height, and period. I would like to present an empirical argument to local authorities, urging them to take action regarding no-wake enforcement and potential no-wake zone extensions. I soon realized I could do much more than that, and now use it for archiving and storing Signalk data for four or five regimens.) I use Parquet/file-based system because InfluxDB is a horrible data storage system, imo. And the performance of SQL Server-type data storage, especially on small devices like RPIs, can't hold a candle to a parquet-based system.) @Teppo Kurki, @Scott Bender...

naugehyde

7/11/2025

naugehyde - API question (for @Teppo Kurki ? @S...

API question (for @Teppo Kurki ? @Scott Bender ?): How does a plugin developer save the "enabled" = true key for a plugin's json? ServerAPI::savePluginOptions only saves the configuration not the plugins enabled and debug state. This becomes a problem when a plugin manages its own configuration state in a custom panel AND is enabled by default.
Under such circumstances, the configuration is never properly enabled (even though its enabled by default) and therefore every time the user restarts, the configuration the plugin gets on startup appears empty. (See interfaces/plugins.ts:576) ...

naugehyde

7/5/2025

naugehyde - New Version of Bluetooth Sensors fo...

New Version of Bluetooth Sensors for Signalk (1.2.4) available in App Store Bluetooth Sensors for Signal K Version 1.2.4 ...

Lars

6/28/2025

Lars - after updating to Server 2.14 two plugin...

after updating to Server 2.14 two plugins doesn`t work - signalk-raspberry-pi-bme280 - and signalk-ruuvitag-plugin . somebody ideas?

Copprhead

6/27/2025

Copprhead - I see an error message for my plugi...

I see an error message for my plugin in Dashboard -> Connection & Plugin Status, but not the full error message. In which file can I find the full error message?

Scott Bender

6/26/2025

Scott Bender - @whiskey6419 please use the orig...

@whiskey6419 please use the original Thread in Discord

Bram

6/25/2025

Bram - The signalk-to-influxdb2 plugin returns ...

The signalk-to-influxdb2 plugin returns - No organization named "MyName" found. I had it working, first i thought it needed the Org ID (i added an issue/suggestion: https://github.com/tkurki/signalk-to-influxdb2/issues/89), but i guess it is not needed. But now i also doesn't accept the ID anymore. Any clue what could be causing this? Already rebooted the server several times. Thx...

Scott Bender

6/18/2025

Scott Bender - I have a beta test ready for the...

I have a beta test ready for the signalk-sonoff-ewelink plugin which has been broken for some time now. Would anyone like to test it out?

Gregw

6/16/2025

Gregw - I'm trying to convert my plugin from v1...

I'm trying to convert my plugin from v1 to v2 APIs, I think I understand the server side well enough, and I can see how client side works with websocket. But I can work out how to call a v2 API with a HTTP Put? So if I have a handler registered like app.registerPutHandler('vessels.self', 'navigation.racing.startLinePort', setStartLinePort) then what URL should I put to? /signalk/v2/api with the body `{context :"", path : "vessles.self.navigation.racing.startLinePort", value :...

Scott Bender

6/13/2025

Scott Bender - @naugehyde I am getting an error...

@naugehyde I am getting an error with the bt plugin config. "Something went wrong" .

Gregw

6/10/2025

Gregw - My [signalk-racing](https://github.com...

My signalk-racing plugin is progressing and I'd appreciate if anybody would like to test it. It current calculates: start line end points from named waypoints; start line length; start line bias; distance to start line; true heading for the next leg of a course; TWA for the next leg of the course.

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Signal K

Signal K is an ecosystem for free and open source universal marine data exchange and software.

Signal K

Signal K is an ecosystem for free and open source universal marine data exchange and software.