Victron Venus OS Large, Node Red and Signal K online resources ...

Baggywrinkle

Baggywrinkle

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I've just enabled Venus OS Large on my Victron Ekrano and now have Node Red with all the Victron kit integrated, and a Signal K Server (My Ekrano is connected to my NMEA2000 backbone) - I also have a Raspberry Pi capable of running Venus OS Large and I want to use it as a develpment environment before screwing up the boat. Much as I hate turning myself into 24Hr IT support for stuff I've created, it looks like I can create some really cool dashboards and automations for the boat - the tank display on the Bavaria control panel is sh!t and the sensors even worse. I'd also like to automate a dehumidifier based on humidity readings, Lithium charge level and solar production.

Anyone have any links to web resources or projects with a marine focus? Anything would be of interest as I find reverse-engineering what others have done is my most effective learning method.

Would be grateful for any pointers thanks.
 
SignalK can also interface to MQTT - so some simple Python scripts can read from sensors such as £5 Bluetooth temperature, pressure and humidity sensors in say the fridge and inject that in to the SignalK server.

A rabbit hole to go down is the German Open Boat Projects page. They even have SignalK displays based on the £25 epaper displays used in supermarkets to display prices.
 
Got Venus OS Large running on my Raspberry Pi this evening, with the new Victron GUI ... turned on Node Red and can now muck about without screwing up my boat install.

Also works on Victron VRM Portal so I can remotely screw up my Raspberry PI instead.

Result!!!

1777410343119.jpeg

VRM Portal access to Node Red and Signal K on the device ...

1777411113019.png

... and all the Victron Goodies in Node Red (on the left) ...

1777410527133.png

... will start messing about tomorrow.
 
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Here is mine so far. I have an air quality sensor from Ruuvi that I need to add in at some point (they sent it to me after publishing this). CO2 levels on the boat are very interesting to monitor.
Highly recommend an epaper screen it’s been brilliant. I also now have an ESP32 board with touch screen but it’s more involved (being C based and having no OS) so while cruising it’s hard to find time.
With the calibrated tank it’s a really good fuel gauge.

lustyd

Thread 'YAPP - boat display'

Ok this one is a little pointless I’ll admit, but it’s been raining so I needed a hobby.

Hardware is:
Raspberry Pi Zero 2WH
Waveshare 7.3” full colour eInk screen
Cheap photo frame

Software is Linux, Python, Jinja and a few other bits and bobs like fortune for a fun quote.

This connects to various things including a weather service API (using boat GPS) but mostly I have it using the SignalK server on the Cerbo to get NMEA data and Victron data. The screen here shows fuel level and remaining litres, inside and outside temperature and humidity and battery SOC. I plan to add a barometer...
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