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| From AppleWatch |
Strange mixture ? Humidity & Internetspeed ?
With HomeKit You can't show Your measured Internet speed in a proper way, X Mbit/s. So why not show it in % ? the measured speed compared to the one You purchased from Your ISP(Internet Service Provider) ?
So now You see the point..... Humidity is also in % and can be displayed in the Home app. The only "if" is that the speed is displayed along with a "water drop"..... but maybe You can live with that ?
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| From AppleWatch |
As long as it's possible to retrieve information, in some way, from a sensor OR a website/webserver, with temperature information, it's possible to show it in HomeKit with HomeBridge(HB).
In this post NodeRed(NR) is retrieving the temperature from Your selected source and is also acting as the WEB endpoint for the HB "homebridge-http-temperature" plugin.
In my case I wanted an outside temperature so used the measurements from our Davis Weather station and their JSON REST API but it could for example be Your Raspberry CPU temp or showing the speed of Your Internet connection.
I have tried to find some basics how a standard underfloor control system is regulating the heating, but haven't, so started with checking up our own temperature control system from LK(TCS).
I used Node-Red, with Raspberry Pi(RPi), sensing when the TCS applied voltage to the actuator. Since the actuator is running on 24 VAC and the input on a GPIO PIN is maximum 3,3 VDC I used a optocoupler to level shift. Schematics below
Please find another post here where I realized, using Shelly 1 and NodeRed, the regulating of the underfloor !!
There are many displays for Raspberry Pi and following some of the manufacturers instructions isn't always so easy.
But there are scripts available which will make it very simple.
As an example, in this post, I will install the LCD touch display from Joy-IT RB-TFT3.2-V2. The size is 3,2" with a resolution of 320 x 240, has a touch display and comes with 3 buttons.
Updated 2023-10-27 !
! The latest information on Homebridge update is found here !
If You are using
HOOBS
or
Homebridge with UX
their updates can be done via respective GUI interface. HB also have a
function to
update Node.js. In other words, the info below is more like "nice to know".
At higher outputs, current, from the batteries I had detected an increasing voltage drop. So I decided to change and update the supply cables from the batteries, see picture, to a more correct solution.
The solution was
- Cable lugs on all cables
- The lug is crimped and soldered to the cable
- Heat shrink tubes, with glue, to cover the transition between the lug and cable
- Battery terminals with M10 distributer
A newer post on the same subject !!
If You want to capture Your data from a sailing trip there are several ways. Here I will check out these
- SignalK delta, via plugin signalk-data-logger
- NMEA 0183(N1), via netcat
- NMEA 2000(N2), via actisense-serial
If you then want to use these files as input for OpenPlotter, OpenCPN or SignalK check out this post.
The easiest way to test Your OpenPlotter, OpenCPN or SignalK(SK) applications is to use the supplied sample files in SK.
Another way is to capture Your own data from a sailing trip, which is described here. Then You can use them instead of the supplied sample files.
A fantastic way to distribute data between devices is using MQTT. In this post I will do a quick and simple setup with Node-Red(NR) and the Mosquitto(MQ) broker on a Raspberry Pi.
Very short, the Broker, installed on a server, handles incoming Publishing and Subscriptions from clients. Every published Message is "linked" to a Topic. All Subscribers use a Topic to "link" to the right Message.
How to install Node-Red(NR) is found here and the MQ manual here.
There have been some questions about how to handle Homebridge, (HB), autostart at power on and restart at failure using Raspberry Pi OS systemd.
Please note that, in the later versions, the HB installation handles this !!
With HomeBridge installed on a Raspberry Pi, (RPi), You just install the homebridge-ring plugin and the Ring accessories will appear in Apple HomeKit
This post will cover the Ring video doorbell but is a guide for other Ring products.
Prerequisites
Updated 2020-01-13 !
OpenPlotter is;
- A complete boat navigation system
- Includes OpenCPN, Chart plotter navigation
- OpenSource, so it's free !
- Running on Raspberry Pi(RPi)
- Its hardware is cheap
- Running on Unix, so its reliable
I really don't recommend this old OP 1, instead check out OP V2, stable, which works very well !
There are two ways to take a backup of Your Raspberry Pi:s, (RPi) Razberry(RZ) configuration;
- Clone the Raspberry boot disk
- Backup just the Razberry configuration
The first way is a described in this post and here we will use the built in function in the Razberry GUI
Updated 2019-09-20 !
This Blogpost was initially made before the IKEA outlets was enabled in the Apple Home app. They could then just be reached via a Tradfri Homebridge plugin.
Since a while blinds are supported by this plugin but not by the IKEA Gateway and app so maybe its time again to install it ?
Another post covers the installation of the Trådfri gateway with a HomeKit approach. (Without Homebridge)
Updated 2019-08-10 !
New to Node-Red(NR) and maybe start with a simple application You can benefit
direct from ?
This application is measuring Your Internet connection at chosen intervals
using Speedtest.net and showing
the result in a graph. If the speed is under a set value it will send You
an email.New ! better version !
Updated 2019-05-11 !
My old Mac Book Air, mid 2011, didn't support the latest MacOS, Mojave. So after some checking I found this brilliant fix which did the job.
This guy have really done a fantastic job with great instructions and even a Youtube video.
Running Weather 34, W34, using my setup, the program "cumulusdata.php" is fetching data from Davis Weatherlink(WL), and are writing the data to a file, type Cumulus. The old way was to fetch the data via a scheduled cronjob.
Doing a small change to "windspeeddirection.php", "updater.php" , and using the latest version of "cumulusdata.php", will do the update with the built in W34 refresh routine instead of cron job.
Thanks to Ken who gave me the hint.
Updated 2019-03-18 !
Do You have Telldus devices up and running and want them to be visible and used in Apples Home app ?
With some software and a Raspberry Pi(RPi) they will appear in the HomeKit environment.
Other HomeKit posts on this Blogg
Dimming not dimmable LED, IKEA Bäve
Inspired by LarsWH and using a Z-Wave controller I got it working with a "standard" component.
I bought the Gledopto RGB+CCT LED controller(GO), so I could use RGB LED strips, not just the IKEA ones.
There were some IF:s, which will be scrutinized below, but it worked.
Updated 2019-01-07
!! Note !! Before Monterey !!
As a part of one of my projects, the ultimate Weather site ?? Weather34(W34), I needed a WEB-host with PHP and started to use a Raspberry Pi.
In this post You will get some short install tips on Apache with PHP on a Mac with Mojave, macOS 10.14.x, and at the end of the post the W34 installation is done.
Updated 2019-09-02 !
If you think it's ok that the broadband speed appears as temperature in Home apps this plugin is very nice.
The plugin, used with Homebridge(HB), measures Your broadband speed at chosen intervals. If You use the free app "Eve for Homekit", besides that it shows the last measured broad band speed, it also shows the speed history in a nice graph.
Other HomeKit posts on this Blogg
Updated 2019-04-01 !
Prerequisites is listed in the beginning of the post for installation on Raspberry Pi(RPi)
You will find migration information, from WeatherLink 1.0 to WeatherLink 2.0, in this post
I have tried to find some basics how a standard underfloor control system is regulating the heating, but haven't, so started with checking up our own temperature control system from LK(TCS).
A newer post on the same subject !!
There have been some questions about how to handle Homebridge, (HB), autostart at power on and restart at failure using Raspberry Pi OS systemd. 
With HomeBridge installed on a Raspberry Pi, (RPi), You just install the homebridge-ring plugin and the Ring accessories will appear in Apple HomeKit
Updated 2019-08-10 !
My thoughts, about NMEA WiFi have finalized ? since my first post in the subject and the Yacht Devices YDWG-02N is now installed in my NMEA2000/ST/NMEA0183 network and works just fine. 
Running Weather 34, W34, using my setup, the program "cumulusdata.php" is fetching data from Davis Weatherlink(WL), and are writing the data to a file, type Cumulus. The old way was to fetch the data via a scheduled cronjob. 
Do You have Telldus devices up and running and want them to be visible and used in Apples Home app ?
Updated 2019-01-07 
Updated 2019-04-01 !
