I hope to start soon. I think I am going to start a custom component and will make it available on hacs first. This makes development and iterations a bit faster than doing pull request on the core. A lot need to be changed.
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@konicekdavid, go to the BSB-LAN Github page or the documentation and you can find there the developer’s,
Frederik, email.
Send an email to him with your boiler’s model number to confirm that it will work and ask him for the BSB-LAN adapter.
You can order the board from him, assembled or non-assembled. He will tell you which board you need depending on you ESP board.
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Bonjour; je suis Francais et utilise BSBLan de Frederik Holst.
Je possede une pompe a chaleur Atlantic avec un RVS21.831F/127.
Je cherche a trouver les parametres qui gerent les differentiels autour des points de consignes de mon circuit de chauffe 1 (qui gere ma vanne 3 voies) et de mon circuit de chauffage 2 (qui gere la variation de vitesse de mon compresseur).
J’ai deja bien travaillé sur Le Tn et Xp de mon circuit 1, mais ne trouve pas le numero du parametre du differentiel (aujourd’hui, à 0.5k apparement sur le circuit 1 et 1k pour le circuit 2).
Pourriez vous m’aider ?
Merci par avance
If you ask this question in English, then someone might can answer it.
But looking at your question, it is better to ask it on the BSB-LAN Github repo under the Discussions. Probably you will get an answer there easier as this is really a heater specific question.
Has someone managed to send commands via MQTT?
I can successfully read the values into created sensors, but changing parameters does not work.
The help of BSB-LAN (Manual for the BSB-LAN Hard- & Software | Manual for the BSB-LAN Hard- & Software) says:
The command
set mqtt2Server publish BSB-LAN /S700=1sends from the MQTT broker named “mqtt2Server” the command “/S700=1” with the topic “BSB-LAN” and causes a mode switch to automatic mode.
So I am trying the following in a script:
service: mqtt.publish
data:
topic: BSB-LAN
payload: /S700=1
But that simply does not do anything, although it looks to me like the bulb on the BSB-LAN board very shortly flashing, like the command would at least reach it.
The board will flash always as it queries things from the heater.
This how my Domestic Hot Water setup works:
#BSB-LAN
# Example configuration.yaml entry
- platform: mqtt
unique_id: bsb_lan_dhw
state_topic: "BSB-LAN/1600"
name: BSB-LAN Domestic How Water Switch
command_topic: "BSB-LAN"
payload_on: "S1600=1"
payload_off: "S1600=0"
state_on: "1 - On"
state_off: "0 - Off"
optimistic: false
qos: 0
retain: true
This gives you and MQTT Switch entity to control the Domestic Hot Water on the heater.
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Awesome, that works perfectly, looks like I just had a few wrong quotation marks and slashes.
Even better than the JSON-examples, as this had a timing/status issue for me (switch set to off, but is reverted to on after a few secons, until the next sensor update is received).
I had expected this also here (as I currently only update the values every 30 secs. via MQTT), but in a first test that did not occur.
With this I might then be able to completely get rid of the JSON and only use MQTT.
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I am facing an issue with updating a value via MQTT with the input from a helper value.
I have an ipnut number to adjust the wanted temperature:
And I have the actual sensor (1610):
I have a working automation that adjusts the input number in case the sensor value is being changed.
But the other way around is not working.
My automation for this is:
alias: HWR - Trinkwasser Nennsollwert ändern
description: ''
trigger:
- platform: state
entity_id: input_number.bsb_lan_trinkwasser_nennsollwert
condition: []
action:
- service: mqtt.publish
data:
topic: BSB-LAN
payload_template: S1610="{{ states('input_number.bsb_lan_trinkwasser_nennsollwert') }}"
mode: single
But now no matter to which value I adjust the input number, the MQTT publishes a value of 8.0 degrees!
I then change it back to 52 in BSB-LAN, the other automation adjusts the input number to 52 as expected, and a few secons later it goes again to 8 degrees! I change it a second time in BSB-LAN, then it remains at 52. So obviously the first automation having changed the input number back to 52 has again triggered the other automation that did another 8 degree publish.
I am puzzled where that value is coming from. The input number state is between 50 and 60. If I use a hard coded payload S1610=55 it changes correctly to 55 degrees, so it is just somehow that it gives back a value of 8 for the input number, even though this is nonsense. Does anyone have a clue what is wrong here?
This is my first try to change a temperature via MQTT.
EDIT: It does not work with
service: mqtt.publish
data:
topic: BSB-LAN
payload: S1610={{ states('input_number.bsb_lan_trinkwasser_nennsollwert') }}
So again just a minor quotation mark thing. Still I have no idea why before if used the right payload, but sent a completely wrong value.
As everything works really well so far with MQTT in both directions, also without the integration I meanwhile have a very satisfying setup.
Helps a lot to understand and optimise the heating, especially on warm water. As I always like to see results of others for inspiration:
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Hi,
my connection to brötje is running since 2h and i tryed first home-assistet integration and see, it doe’nt work. I want to try it now your way, with mqtt. i have the latest version from bsb-lan 2.1.3 and mqtt is enabled. Can you share us some configurations for ha?
In BSB-LAN settings:
- Enable MQTT with plain text
- Maintain IP address of MQTT server (in my case same as HA)
- Logging can be left deactivated (unintuitive, that is just logging on the device itself), but maintain log intervall (I have 30 secs) and the numbers of all parameters you want BSB-LAN to publish
In the settings of the MQTT integration, you can check if it generally gets messages of BSB-LAN, the status will then report “online”:
Then in the file editor you can define the sensors for the values you let BSB-LAN publish and also switches for the ones you want to change (grant BSB-LAN write access in its settings). Examples for that are in this thread and also in the BSB-LAN manual in chapter 8.
Update of BSBLAN integration is underway. It doesn’t support new firmware version yet but the library is rebuild so it would be quite easy to support multiple versions. If anyone wants to review the pull request?
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Are you still working on the integration? If you need someone to test, I’m happy to do that.
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If someone can check the pull request and do a review. I’ll try to check if one of the developers has time. But if would be great if someone could do a review beforehand.
Is it still for that old version of BSB-LAN?
No/Yes, it’s mostly rewritten integration. Still using old firmware as this one is working. Want to push a lib for new version when this one is running properly. This will be a minor update. But the rewrite is quite big so I just need this version to be integrated in home assistant. When I have some extra time I’ll start with hacs. This is taking too long 
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Hi, I try to get through mqtt for example outside temp. I use this in configuration.yaml:
mqtt:
sensor:
- name: mqtt temp bsb
state_topic: "BSB-LAN/8700"
unit_of_measurement: °C
device_class: temperature
but state is always unknown. What I’m doing wrong?
Have you set up the BSB-LAN device to publish that topic to your MQTT broker?
