PaddyB
SKSignal K
•Created by Ba2 on 5/7/2025 in #questions
Any suggestions for an attitude sensor for signalk?
9 replies
SKSignal K
•Created by Ba2 on 5/7/2025 in #questions
Any suggestions for an attitude sensor for signalk?
9 replies
SKSignal K
•Created by Ba2 on 5/7/2025 in #questions
Any suggestions for an attitude sensor for signalk?
I use one of these, https://shop.pimoroni.com/products/icm20948?variant=27843993960531
Pypilot recommended, does very accurate roll and pitch plus all the other accell etc that pypilot uses but we don't see.
9 replies
SKSignal K
•Created by edouard_k on 4/30/2025 in #questions
Crowdsourcing depth for openseamap
https://iho.int/uploads/user/pubs/bathy/B_12_CSB-Guidance_Document-Edition_3.0.0_Final.pdf is quite big doc to wade through, you could try https://notebooklm.google.com/ and paste the doc address as a web link then get it to make a podcast out of the document, 2 people talking about it. Takes a few minutes, Star Trek is here 😎😂
56 replies
SKSignal K
•Created by Chris BHR on 5/5/2025 in #questions
Wave height calculation
Lots of variables... Though the BMP280 I have is very sensitive, it picked up load & clear the pressure wave from the Fuji volcano eruption year or so back, for a few days I was wondering WTF WAS THAT?? 'til a link came up talking about it somewhere.
14 replies
SKSignal K
•Created by edouard_k on 4/30/2025 in #questions
Crowdsourcing depth for openseamap
Looks interest, would be nice to do something useful out there -😎
56 replies
SKSignal K
•Created by edouard_k on 4/30/2025 in #questions
Crowdsourcing depth for openseamap
Not too bad then, something an Ai could write python to do from signalk & influxdb in no time. more here . https://iho.int/uploads/user/pubs/bathy/B_12_CSB-Guidance_Document-Edition_3.0.0_Final.pdf
To submit Crowdsourced Bathymetry (CSB) data to the International Hydrographic Organization (IHO), the expected format and process are as follows:
Data Format
The IHO Data Centre for Digital Bathymetry (DCDB) primarily accepts data in GeoJSON and/or CSV formats for bathymetric soundings.
Data should be accompanied by mandatory metadata, such as vessel identifier, sensor configuration, and data license (which must be Creative Commons Zero, CC0 1.0).
All measurements (e.g., depth, offsets) should be in SI units (meters), with speed in knots allowed.
Tidal corrections should not be applied to the soundings before submission.
Submission Process
Data is typically submitted via a Trusted Node (an organization or individual acting as a liaison), but individuals can also contact the DCDB directly to arrange submission.
Submissions use standard network protocols such as FTP or HTTP POST, authenticated with a unique token provided by the DCDB.
Example HTTP POST submission (with GeoJSON file):
bash
curl 'https://www.ngdc.noaa.gov/ingest-external/upload/csb/test/geojson' -i -X POST \
-H 'x-auth-token: <valid token>' \
-H 'Content-Type: multipart/form-data' \
-F 'file=@<geoJson.json>;type=multipart/form-data' \
-F 'metadataInput={
"uniqueID": "<uniqueID>"
}'
Next Steps
Review the IHO B-12 Guidance on Crowdsourced Bathymetry for detailed metadata requirements and sample data formats.
Contact the DCDB at [email protected] to express your interest and receive guidance tailored to your setup.
56 replies
SKSignal K
•Created by edouard_k on 4/30/2025 in #questions
Crowdsourcing depth for openseamap
Could you not just save the data to influxdb & send that with lat/long & anything else on interest? I end up with masses of data after an ocean passage, uploading it for an Ai to look at can be interesting. Would be nice to give it to someone academic if it was any use to them. Ocean temperatures might be of use. 🤔
56 replies
SKSignal K
•Created by Chris BHR on 5/5/2025 in #questions
Wave height calculation
i tried it with bme280 but nothing of interest came out, too much noise, a gust could probably lower the pressure inside by more than a wave. What might be interesting & useful is data from the Pypilot compass, https://shop.pimoroni.com/products/icm20948?variant=27843993960531
Roll & pitch are send by default, accurate enough to see me move from a seat to the chart table, might be a way of getting at the accelerometer data as well.
14 replies
SKSignal K
•Created by naugehyde on 3/25/2025 in #announcements
New Beta release of bt-sensors-plugin-sk
Looks great! Anyone tried sending data to the app over bluetooth (BLE?) from an esp32? And would it be a better option so the raspberry pi has less wifi connections to deal with? I've 3 esp32's sending data over udp to a Pi4. So far..... 😂
18 replies
SKSignal K
•Created by kmon6369 on 3/25/2025 in #questions
SK not Updating
not sure if it's relevant but on openplotter on pi4 i get..
pi@openplotter:~ $ which npm
/usr/bin/npm
pi@openplotter:~ $ grep version /usr/local/lib/node_modules/signalk-server/package.json
grep: /usr/local/lib/node_modules/signalk-server/package.json: No such file or directory
pi@openplotter:~ $ grep version /usr/lib/node_modules/signalk-server/package.json
"version": "2.13.5",
"compare-versions": "^3.0.1",
pi@openplotter:~ $
100 replies
SKSignal K
•Created by Copprhead on 3/16/2025 in #plugins-and-webapps
Copprhead - Is there a library that helps with ...
another option to try could be load vscode with the gemini code completion extension then spend 10 mintes describing exactly what you would like to do and get it to write some python. Only played around a bit so far but it seems to often nail it straight away or if not paste any error messages in & it will fix them. Might have a play later, cut into 2 where speed is below xx & positions are within xxx within 20 minutes of xxx. It will write a window with menus to load & look at GPX. We are all coders now, just need to create the right prompts 😎 This is one Ai written to look at waypoint symbols https://i.imgur.com/xqg0a2u.png
11 replies
SKSignal K
•Created by Copprhead on 3/16/2025 in #plugins-and-webapps
Copprhead - Is there a library that helps with ...
I just use opencpn to "top and tail" before saving tracks. In track properties highlight a track point and click split, usually easy to see when the boat is moored by the speed. It's part of the end of passage check sheet.
11 replies
SKSignal K
•Created by jimseng on 3/11/2025 in #questions
Is it possible to connect to a node red dashboard without loging in
setting a static ip address on the Pi worked ages ago when I had a play but android changes often, for a while you couldn't get at ssh or data through a phone hotspot from another device connected to the phone.
29 replies
SKSignal K
•Created by jimseng on 3/11/2025 in #questions
Is it possible to connect to a node red dashboard without loging in
one not very good option is have the Pi both create a hotspot and log on to the phone at the same time with the onboard wifi adaptor, which is a bit unstable. Or maybe splash out on a usb wifi adaptor. I never have the Pi attached to internet unless doing an update so not a problem, though istr in the past setting a fixed ip address on the Pi, an Ai would explain how to do this.
29 replies
SKSignal K
•Created by A.R. on 2/18/2025 in #questions
Slow replay of nmea-0183 log file
opencpn has a vdr plugin which can replay 0183 with variable speed playback you could point at signalk. Also the sigk sim app can be useful though that's sigk data.
12 replies
SKSignal K
•Created by jimseng on 1/29/2025 in #questions
Struggling to get node red data into Kip
think you beat me to it 😊
4 replies