Install Weather34 with WeatherLink

Updated 2025-01-09 OK with Bookworm 64 bit, PHP 8.2 !

If You want Your Private Weather Station(PWS) Davis Vantage Pro2, or other Davis products that use WeatherLink, to provide data for the template we use at Domstens Båtklubb just follow the instructions below. 

This is made without additional software such as Cumulus, Weather display or the Meteobridge product.

This application is updated !!, to use the v2 API. Check  this post !!

Install Weather34 with WeatherLink, v2 API

Updated 2025-01-08 OK with Bookworm 64 bit, PHP 8.2 !

This post is an update from a former post which handles on how to set up a weather WEB-site with data from Davis Weather Link(WL) but here adapted to the latest WL API v2.

Any product that reports weather data to WL can be used as a source for this weather template.

This is made without additional software such as Cumulus, Weather display or the Meteobridge product.

DMI forecast API for atmosphere, ocean and sea ice, free !

Updated 2025-01-04

DMI is the Danish Meteorological Institute and the Open Data API provides free and open access to DMI’s data.They are covering a pretty big area not just Denmark.

I'm maintaining the weather station for Domstens yacht club and have become really interested in weather "issues".

The actual use case for me is that I have to change the mooring, of our boat, if the water level exceeds 60 cm from normal. For several years I have been searching for a free forecast API so I can get an early warning when the water level rises.

Node-Red is used.

Raspberry Pi OS install with Mac/Windows/Linux

Updated 2024-12-13 !

When starting up a new project with Raspberry Pi I like to start up fresh and with a minimal OS. Therefore i always use Raspberry Pi OS(ROS) Lite and then adding what I need. 

Doing it right You don't have to use an external display, keybord and mouse, just a "ssh" client.

Flash to a SSD ? Check this post.

Receive temperature, 433 MHz sensors, with RTL-SDR

 

Updated 2024-12-01 !

In my underfloor heating project, using Node-RED, I have to have one sensing thermometer per room/zone, seems to be 8 in total, so therefore it would be nice with a wireless battery sourced device with good resolution and frequent updates.

During the test phase I used a Z-way device but the resolution was pretty bad. Another device mentioned is the Ruuvi tag but since it's a bluetooth device the transmitting range could be better.

After some googling I went for 433 MHz devices.

Underfloor heating with PID controller, NodeRed

Updated 2024-11-14 !

In a former post I did some hacking/checking how our underfloor heating control system handled the valves, actuators, regulating the heat. 

Now it was time to do some tests with NodeRed(NR), with a PID controller, and a Shelly 1(S1) connected via WiFi and driving the actuator.

The actuators are in my case controlled by 24 VAC and the S1 accepts 110 - 240 VAC, 24 - 60 VDC and 12 VDC. So in this case it was simple to just add a rectifier and a capacitor, to the 24 VAC, to get approx 36 VDC to source the S1.

Matter bridge, with Shelly, or non Matter devices

Matter is a smart home standard currently being developed by a consortium of over two hundred companies, including big players such as Apple, Google, Phillips, Amazon and Samsung.

Many new devices have Matter implemented, from the beginning, but devices, such as most of Shelly devices don't. On the other hand many hubs can be upgraded to Matter support. For example an Apple TV.

With a Matter bridge you can solve the incompability. This post will use Matter bridge plugin Manager and the Shelly plugin but it could be other devices shown in the picture below.

Shelly devices as "native" Apple HomeKit accessories

Updated 2024-11-09

I have been using Shelly devices for quite some time both on our boat, off grid, and also as HomeKit (HK) accessories via Homebridge (HB). 

I was really amazed when I found that some smart guys have created a software package that replaces the stock, official, Shelly firmware with the "Shelly-HomeKit" package which emulates a "native" Apple HomeKit accessory.

It's very nice done, really simple, and the flashing of the software is done over the air (OTA) with your ordinary WEB-browser.

Node-Red quick install

Updated 2024-11-06 !

Node-Red(NR) is Flow-based programming for the Internet of Things

This post isn't made as a complete install guide, there are several, just some links to the best information I have found.

The best thing is that even if you don't are a skilled programmer, but like logic flows, you can make really advanced things. It's pre-installed on some Raspberry Pi(RPi) distributions.

Running Node-Red with multiple instances ?

SeaTalk1 to NMEA 0183 converter, DIY

Updated 2024-08-30 ! 

!! Another SW solution is available for RPi 5 here ! using the same HW.

Thanks to Thomas, (the guy with the nice marine interface board), it's now possible to decode, one way, the SeaTalk1(ST1) sentences in a pretty simple way. You just use OpenPlotter(OP) and/or SignalK(SK) and an Optocoupler.

The thing that made it, is that Thomas has released a "how to" and Python source code, that will read the data from a GPIO pin on the Raspberry Pi, (RPi), and format it so the standard parser in SignalK can translate it to SignalK delta format. It is then available as NMEA 0183. It's even possible to send the data in to a NMEA 2000 network, with a proper hardware interface.

Waveshare CAN hat with Signal K & OpenPlotter

Updated 2024-07-08

To get information from the NMEA 2000(N2K) network, to the RPi, I have been using Actisense NGT-1, for a long time, and later also the Yacht Devices YDWG 02 but now it was time for a Raspberry Pi(RPi) CAN hat(CH) from Waveshare(WS). WS have 3 different models but I picked the 2 channel isolated one.

It's recommended to use an isolated one which also is demanded for those interfaces which can be approved by the N2K group.

Raspberry Pi OS Lite with GUI, RDP, VNC, Chromium

Updated 2024-07-01 !

I like the Raspberry Pi(RPi), with Raspberry Pi OS Lite (no Desktop is included), headless operation, and then adding the software You need. Until now I haven't had a use case where I needed a Desktop but now was time. 

Why don't use the Raspberry Pi OS with Desktop ?? In that package there is a lot of software I don't need and I really want to optimize the RPi. I think that the less software You install the happier RPi will be...

😉

OpenPlotter v4 stable, install guide

Updated 2024-06-30 !

OpenPlotter(OP), a Boat Navigation application, is really a nice and simple installation of

• OpenPlotter(OP)
• OpenCPN(OC)
• SignalK(SK) 

and other supporting applications for Your boat.

An overall information about the OP package is found here 

and you can watch the OP v4 progress here.

Raspberry Pi 2, 3, 4, 5 USB SSD or USB drive boot

Updated 2024-06-06 !

After having tested several methods creating a bootable USB SSD, or other USB drive, for Raspberry Pi(RPi) 3 4 and 5, I finished with this simple method

• Create the setup you want on a ordinary SD card(Or use existing)
• Make a bootable backup/clone of the SD card saving it to the USB SSD
• Remove the SD card and boot from the USB SSD

Having a RPi 4, 5 ? Use this post on how to write the OS direct to the SSD.

 

Raspberry 4,5 USB SSD boot in 60 seconds !

Updated 2024-06-05 !

Yes, it's really true ! Thats the maximum time it takes to write the Raspberry Pi(RPi) OS to a bootable USB SSD and maybe read this post ?

If you have a RPi 4, 5 and a USB SSD or other USB drive, that works as a boot media, just use the RPi imager which can write the image direct to the USB  storage.

Having an older RPi ? Use this post instead.

If you already have a SD card with working applications and you want to "transfer", copy/clone, them to a bootable SSD use this post.

OpenPlotter V3, install guide

Updated 2024-03-01 !

OpenPlotter(OP), a Boat Navigation application, is really a nice and simple installation of

• OpenPlotter(OP)
• OpenCPN(OC)
• SignalK(SK) 

and other supporting applications for Your boat.

An overall information about the OP package is found here.

Install guide for the new stable OP, version 4, is found here.

Clone the Raspberry boot disk

Updated 2024-02-20 !

A very nice way to fix a backup is to make a copy, bootable, of the actual SD card You are using on the Raspberry Pi(RPi). This will be done even when the RPi is up and running !

This application can also be used to make a bootable SSD or USB drive !!

You clone from the command line so You don't need the standard GUI, Pixel, and the "SD card copier" function.

It is also possible to set up a a scheduled job, cronjob explained later, which for example makes a clone every night at 1 o'clock.

GRIB files and extracting data, Linux, Raspberry

Updated 2024-02-08

GRIB is a data format, used for meteorology, to store historical and forecast weather data. 

The use case for me was analyzing forecast data, from GRIB files, so an early warning could be rised before a high water level or coming storm appears. This could then be used at our weather site.

There are several applications, also ones that visualizes the data, but this post will handle how to extract data from files using command line.

AIS reciever for Raspberry Pi, 2 channel

Updated 2024-01-20 !! OK with Bookworm !!

This post covers the setup for a AIS, dual channel, receiver for Raspberry Pi(RPi) with systemd autostart.

I'm using the RTL-SDR dongle V3 with almost zero temperature drift or the even better NooElec NESDR Nano 3

AIS posts with charts/maps

• OpenSeaMap and dispatcher 
• OpenStreetMap and dispatcher

Improve receiving range? Calibrate ! Instructions in this post

The best AIS application ? is found here !

RPi install Apache/PHP WEB-server

Updated 2024-01-07 ! OK with Bookworm & PHP 8.2 !

As a part of one of my project, the ultimate Weather site ? Weather34, I needed a WEB-host with PHP.

I started up with a fresh Raspberry OS Lite SD Card with Samba installed.

Log on, with ssh/terminal to the RaspberryPi(RPi), in this case hostname "pws01", and update the OS with

sudo apt update
sudo apt full-upgrade -y
sudo apt clean

go on and install the Apache server with

sudo apt install apache2