Category: IoT

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MQTT and Husdata H66 in Home Assistant

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If you have a smart home with a geothermal well feeding a heatpump from IVT or some of the other suppliers, the chance is good that Husdata www.husdata.se has a IoT device for it so you can monitor your heating system in your smart home system.

To set up MQTT for Home assistant, you need to go to Addons, backups and supervisor. Find Mosquitto and install it. Then go to the info tab and select start on boot so it starts again on a boot. Go to configuration and take a note of the network ports for later.

Reboot HA

Then goto Devices and services, check that you see mosquitto

Then you need to set up a new user in HA for mqtt: go to people and zones / select the users TAB. Make a new user with usernamexyz and a safe and long pw. of your choice.

Now go into your husdata H66 web gui on the ip it resides on. Goto the Config tab. Find the MQTT settings. You need to point to the IP of your HA server. Also now give the username and password you did set up in HA earlier.

My MQTT settings look something like this:

Now check the log of the husdata H66. If it says something like “08:03:00 MQTT subscribing to: MAC ADDRESS OF THE H66/HP/CMD/#” then you are good. It will try to connect several times, however after some tries it will go over to try once per hour. Then its best with a reboot of the H66 to speed it up unless you are very patient in your fault finding process.

Now go to the HA user interface: Go to devices and services. Find the mosquitto broker “tile”. If you now see that there are xx entities available in that tile like below, you are good.

Click on all the entities link in the tile and select all the entities you want to get data for. When you are done, click ENABLE SELECTED.

Now do a reboot of both HA and the H66 (it doesn’t hurt).

Now you should be ready to make dashboards and use the sensors.
Also, check this tutorial out: https://learn.adafruit.com/set-up-home-assistant-with-a-raspberry-pi/mqtt-setup

(Disclaimer: you do everything on your own responsibility. The information given may be incorrect. By interfacing to your heat-pump you may change settings that may lead to overheating and/or damage of your heatpump, loss of heat or other problems. If you do not know what you are doing, don’t do it).

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Orbi mesh network RBS350 / RBR350 in chained mode (not star mode)

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Earlier versions of orbi RBS350 (satellite) and RBR350 (router) before ca. version 4.4.1.29xx would have to be set up in chained mode manually. If you have a house where one part of the house does not have coverage from the base the system will now automatically set it self up in chained mode. IN the outermost nodes you even have BOTH 2.4GHz and 5GHz service for the units that want to connect even if the back-haul is wireless and uses 2.4 or 5.

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How to fix ORBI wifi mesh setup so all units on the network is visible

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If you have experienced that some units on your Wifi network that were previously connected to your fiber or cable router cannot anymore be connected on your internal network – after you installed a set of ORBI mesh units – the reason may be that the ORBI system is not set up in access point mode. If it is set up in router mode, there is an internal firewall that acts in addition to the normal firewall you have in your cable or fiber modem. Log into the orbi unit with orbilogin.com and go to ADVANCED/Advanced/Router/APmode and select AP mode. Reboot the ORBI units and you are all set. All units on your Wifi network are visible (on your internal network). Read more here: https://kb.netgear.com/000061927/What-is-the-difference-between-router-mode-and-AP-mode

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Wifi setup for Home Assistant via COMMAND LINE

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Power on HA

Have a screen and a keyboard connected

When you see the ha> prompt enter login

Then do this:

nmcli radio

radio

Now scan and list available wifi access:

nmcli device wifi rescan

nmcli device wifi

wifi list

Connect to wifi:

Use quotes around your ssid and password:

nmcli device wifi connect "YOUR_SSID" password "YOUR_WIFI_PASSWORD"

This will try to connect to your SSID and will generate a network profile for you if successfull.
The output will be similar to
"Device 'wlan0' successfully activated with...."

Then check your connections again:

nmcli con show

con show

You should be seeing at least two profiles and both green.

If you are seeing some profiles you’d like to get rid of you can remove them using:

nmcli connection delete CONNECTION_NAME

delete con

These may have two separate ip addresses on your network: one for ethernet, one for wifi.
You can check the ip addresses using:

ip addr show

Now connect to http(s)://your_wifi_ip:8123 in your browser.

Credit goes to: https://community.home-assistant.io/t/guide-connecting-pi-with-home-assistant-os-to-wifi-or-other-networking-changes/98768

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Securing your node-red editor and dashboard on the Raspberry Pi

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If you leave your node-red installation on your rpi running without a password you will be hacked and soon owned by people using your rpi as a bit coin mining device. It is easy to set a password for the editor and for the dashboard!:

Node-red is installed in /home/pi/.node-red (the . dot in front means you will normally not be able to see the directory as the dot means it is hidden. Therefore, set up your file manager to show hidden files. Alternatively, if you are using the terminal you can use ls -a or ls -al in the /home/pi directory to see all that is there).

Edit the settings.js file with

nano settings.js

Uncomment this section in the settings.js file:

adminAuth: {
type: "credentials",
users: [{
username: "admin",
password:"xxxhash key is pasted herexxxx",
permissions: "*"
}]
},

You will need to generate a hash with node-red-admin and type the hash-pw command. The hash key you paste above in the field xxxhash key is pasted herexxxx (keep the ” ” signs and dont mess up the [ ] {} , stuff).

You will probably have to install the node-red-admin tools (google how to do that with npm) to be able to use node-red-admin

For the dashboard you do the same procedure but you now un-comment this line

httpNodeAuth: {user:"user",pass:"xxxxdashboard hash key is pasted herexxxx"},

Make sure to keep all commas etc!
If you are uncertain to what directory your rpi reads the settings.js file from, you can start the node-red with node-red-pi and look at the messages in the console. It will report the location and file it uses. Dont edit the wrong settings.js file … there are several installed on your pi it seems

Restart the node red
IMPORTANT! CLEAR THE CACHE of your web browser. If not you will not see the password on the editor and the dashboard, as node-red uses cache quite heavily. See https://support.mozilla.org/en-US/kb/how-clear-firefox-cache for how to clear Firefox cache

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IRIDIUM SATCOM enabling your next IoT / Arduino / microcontroller project

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Rock Seven has launched a board that takes care of the PSU and antenna requirements to support the Iridium 96090 module https://www.iridium.com/products/iridium-9602/

http://www.rock7mobile.com/products-rockblock.php?gclid=EAIaIQobChMI1ZWSqv2C3gIVRawYCh2DBQ7eEAAYASAAEgI3vfD_BwE

This enables fast time to market and coverage in remote areas on customers IoT devices.