Resol Vbus Data In Home Assistant with MQTT

How to get those values from the Resol solar controller with a Vbus/lan adapter to Home Assistant.

Used equipement:

• Resol Deltasol CS2
• Resol Vbus/Lan adapter
• Tested on my Proxmox server but it also works on a Raspberry Pi

All the information I used comes from this site:

http://danielwippermann.github.io/resol-vbus/#/

Open Terminal or SSH to your install with PUTTY.

Before we start it always good to check:

• $ sudo apt update
• $ sudo apt upgrade

First I need to install NPM on a fresh install, see the next steps:

How install npm on Linux? (on a VM I used it with Debian Bullseye but also on Raspian).

• $ sudo apt install nodejs
• $ node -v or node –version (to check te version)
• $ sudo apt install npm
• $ npm -v or npm –version (to check the version)

Then I followed the next steps from this example:

http://danielwippermann.github.io/resol-vbus/#/md/examples/vbustouch-proxy/README

• $ git clone https://github.com/danielwippermann/resol-vbus
• $ cd resol-vbus
• $ npm install
• $ cd examples/vbustouch-proxy
• $ npm install
• $ cp config.js.example config.js

The next step is to edit the config.js file.

• ~ cd /resol-vbus/examples/vbustouch-proxy
• $ sudo nano config.js

Edit the next parts in the file:

    connectionOptions: {
        host: 'IP-ADRESS FROM VBUS/LAN ADAPTER',
        password: 'vbus',
 
    mqttConnect: {
        host: 'IP-ADRESS FROM HOME ASSISTANT',
	port: 1883,
        username: 'HOME ASSISTANT NAME',
        password: 'HOME ASSISTANT PW',
    
	
    mqttPacketFieldMap: {
        temp1: '00_0010_1121_10_0100_000_2_0',
        temp2: '00_0010_1121_10_0100_002_2_0',
        temp3: '00_0010_1121_10_0100_004_2_0',
        temp4: '00_0010_1121_10_0100_006_2_0',
	temp5: '00_0010_1121_10_0010_008_2_0',
	flow: '00_0010_1121_10_0010_010_2_0',
        relay: '00_0010_1121_10_0100_012_1_0',
        relayhrs: '00_0010_1121_10_0100_014_2_0',
        unittype: '00_0010_1121_10_0100_016_1_0',
	errormask: '00_0010_1121_10_0100_018_2_0',
	sens1stat: '00_0010_1121_10_0100_018_1_1',
	sens2stat: '00_0010_1121_10_0100_018_1_2',
	sens3stat: '00_0010_1121_10_0100_018_1_4',
        sens4stat: '00_0010_1121_10_0100_018_1_8',
	statmask: '00_0010_1121_10_0100_020_4_0',
	heat: '00_0010_1121_10_0100_024_4_0',
	swvers: '00_0010_1121_10_0100_028_2_0,

The ID’s in this file list are according to the ID’s from the list of the DeltaSol CS2, for other types there are different ID lists to find on: http://danielwippermann.github.io/resol-vbus/#/vsf

DeltaSol CS2 (0x1121), command 0x0100 (00_0010_1121_10_0100)

Then we have to:

• $ node index.js

And the script will run.

To automate the script when rebooting add a line to the crontab:

• $ crontab -e
• choose for nano to edit the file and add the line:
• @reboot node /home/……./resol-vbus/examples/vbustouch-proxy/index.js
• fill your userid at ……..

Moving to Home Assistant

Mosquitto broker should be up and running in the Add-on’s.

Edit the configuration.yaml or better if you have a sensor.yaml.

These sensors are added:

sensor:

- platform: mqtt
  name: "Zonnecollector Temp"
  state_topic: "home/resol"
  unit_of_measurement: "°C"
  value_template: "{{ value_json.temp1 }}"

- platform: mqtt
  name: "Zonnecollector boiler Temp"
  state_topic: "home/resol"
  unit_of_measurement: "°C"
  value_template: "{{ value_json.temp2 }}"

- platform: mqtt
  name: "Zonnecollector Pomp status"
  state_topic: "home/resol"
  unit_of_measurement: "%"
  value_template: "{{ value_json.relay }}"

- platform: mqtt
  name: "Zonnecollector Pomp actief"
  state_topic: "home/resol"
  unit_of_measurement: "U"
  value_template: "{{ value_json.relayhrs }}"

- platform: mqtt
  name: "Resol Unit type"
  state_topic: "home/resol"
  value_template: "{{ value_json.unittype }}"

- platform: mqtt
  name: "Resol Error Mask"
  state_topic: "home/resol"
  value_template: "{{ value_json.errormask }}"

- platform: mqtt
  name: "Zonnecollector sensor error"
  state_topic: "home/resol"
  value_template: "{{ value_json.sens1stat }}"

- platform: mqtt
  name: "Zonnecollector boiler sensor error"
  state_topic: "home/resol"
  value_template: "{{ value_json.sens2stat }}"

- platform: mqtt
  name: "Resol Satus Mask"
  state_topic: "home/resol"
  value_template: "{{ value_json.statmask }}"

- platform: mqtt
  name: "Resol Warmteopbrengst"
  state_topic: "home/resol"
  unit_of_measurement: "kWh"
  value_template: "{{ value_json.heat }}"

- platform: mqtt
  name: "Resol SW vers."
  state_topic: "home/resol"
  value_template: "{{ value_json.swvers }}"

Save, check the configuration and restart Home Assistant.

And after some tweaking in Home Assistant this is my result: