Drayton Wiser Home Assistant Integration

Angelo_Santagata · March 11, 2022, 11:38am

Hey @dunxd (re temperatures of itrvs)

Yes, Im also finding the temperatures in my new house is around 2C out (ie it thinks its warmer). Ive Drayton but not heard any response. my old smart heating (Max!) was rubbish but it did have this override function. You have two solutions

Install a Room Stat in each room (cost around £50) but then the TRvs take the temp from that and its accurate.
Just set the target temp to 2C higher than you want. I use this but it means the UI doesnt show the real temp. I then use Aqara sensors (Zigbee) to measure the real room temp.
Mark recently posted a recipe where you can manage the room temp with the external temp sensor. You set the target temp and together with the real room sensors we keep “boosting” the room until the correct temp is reached. See wiserHomeAssistantPlatform/manage_temps.md at e7cef469a9e27ca36bf91726b660052423b092d4 · asantaga/wiserHomeAssistantPlatform · GitHub

GEAR-IT-UP · March 15, 2022, 12:50am

Interesting! Thanks all!

I just have an installer coming to sort it out next week. The only thing I need to sort now is smart dimmers that are also offline. The real issue is there does not seem to be a large amount of X products does this, offline working yes/no etc.

Any recommendations? I am currently looking at lightwave (their V2 stuff) but being put off with the paid subscription features. I wonder If we can get them working the same but with homeassistant

msp1974 · March 16, 2022, 9:54am

Off topic I know but…

Depending on your house wiring, there are lots of options for smart light switches/dimmers. No neutral is much harder and very few wifi ones will work. Personally, I find many smart light switches/dimmers are very ugly but have been recently looking at trying these out. They are zigbee therefore no cloud needed.

You can basically take any dimmer switch face plate and change the dimmer module to this so you can have whatever suits your house. Not the cheapest but…

For lamps, I have recently bought and installed these:

https://www.amazon.co.uk/gp/product/B08ZK7M2JB

You will see in the reviews that the lugs break off when you open them - which happend and is not great but I used a glue gun to fix them and they hold well. Work really well with HA built in ZHA integration and a sonoff zigbee stick. Also the only inline dimmers I could find that look like they fit in a house!

Creagan · March 16, 2022, 10:47am

(not trying to hijack the topic either, but… I have my eye on the SM323 on this page: Smart Inline Zigbee switches – SAMOTECH - just order and £35.33 with delivery…

Angelo_Santagata · March 16, 2022, 2:06pm

@GEAR-IT-UP WRt light switches, I used LightwaveRF for my old house, worked fine without a neutral but a pain in the ass for bulb compatibility. The units do look nice and very wife friendly

GEAR-IT-UP · March 17, 2022, 4:03am

ah thanks man. Luckily I have a neutral wire.

Did they work offline via the hub then I take it? (its seems oddly hard to find this information) which worries me

Oh bulbs are a good point, I thought any dimming bulb would do the job?

j0e · March 28, 2022, 6:32pm

A question for all you Drayton Wiser via HA users… does the HA integration still make use of a) the hub and b) the Drayton cloud service?

A friend asked me what would happen if, theoretically speaking, Drayton were to go out of business or pull their cloud server. Even if it does use the hub, as long as it’s handled locally then I guess that HA would keep on working?

msp1974 · March 28, 2022, 8:03pm

Joe,

This seems to get asked about every couple of weeks. It only uses local to hub api and does not use the cloud.

j0e · March 28, 2022, 9:33pm

Thanks @msp1974,

I did have a look through the posts but - with over 547 - I guess it’s easy to miss.

Thanks again for confirming.

smir · April 4, 2022, 2:16am

Is there a way to “manipulate/correct” a trv’s current temp value with the temp reading of another sensor (e.g. a Dht22 I have hooked up further away from the radiator)?

msp1974 · April 4, 2022, 7:38pm

Alexander,

I created this automation a few months ago to do just this using Aquara sensors. If you read the instructions carefully, you can amemd to work with other sensor types.

github.com

asantaga/wiserHomeAssistantPlatform/blob/1eb44d6d4478c42108763355a2377a65fb4d755a/recipes/manage_temps.md

# Using External Temp Sensor to Manage Room Temp Accuracy

The basic premise of this automation is to monitor a series of external temperature sensors and boost wiser room heating to reach the correct temperature as set by the schedule.

On updates from the external temp sensor, it will compare this to the scheduled temp of the Wiser climate device (aka room).  If the room is not already heating or boosted, it will boost the room by 1.5x the difference.  I have found this to give pretty good results but this may need tweakign for your own situation.

It will also look if the current room temp is within 0.5C of the scheduled temp and cancel any boost if it is.  Again, this number can be changed but will involve a number of places to change it.

## There are 3 requirements for this automation to work:

1) You need at least version 3.0.20 of the Wiser integration for HA.  It uses the 'current scheduled temp' attribute that was new in this version.
2) That your temperature sensors are setup in HA Areas with the Wiser Climate device you wish to control in the same area, as it looks for a Wiser climate device in the same Area as the temp sensor that triggered a state update to get the scheduled temp and set a boost.
3) The first condition in the automation may/will need to be adjusted to filter your specific temp sensors.  I am using Aqara sensors via the ZHA integration.


Adding new climate devices or temp sensors (providing they are of the same type you already have) should require no changes to this automation.

If you have rooms that have Wiser in them but no seperate sensor, then that is also fine as it is driven by the sensor updating its reading.  If it's not there, no reading updates!

```yaml

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Mark

smir · April 11, 2022, 7:56am

Thank you mark, much appreciated, i will look into that next time i have some time

GSzabados · April 11, 2022, 3:48pm

I remember we discussed rechargeable batteries already in this topic, and it was agreed that the classic rechargeable AA batteries are generally too weak for the TRVs. But has anyone tried these?

Would it fit to the TRVs?

collse · April 11, 2022, 11:10pm

I have not but I was considering a 3.7V lipo with a dummy but I am afraid it may pop the TRV

Creagan · April 12, 2022, 7:17am

Smart Heating Update - 14 Month Review - YouTube

Frazzyfin · April 14, 2022, 12:53pm

When a room is being boosted and I then manually change the setpoint, I would have expected the entity to cancel the boost and go into the manual override state. As it stands it shows that it’s boosting but the heating isn’t on (because I lowered the setpoint), which doesn’t make much sense. Is this a bug?

msp1974 · April 14, 2022, 2:15pm

@Frazzyfin This is currently how the Wiser App works. Whether it makes sense or not is probably different for different people. Please raise an issue on our github page and we will ask the community to up vote it if it is a change that they want to see. Thx

msp1974 · April 22, 2022, 5:52pm

With the release of HA 2022.4 came a new feature - Trigger Variables. For any of you who are using the recipe for managing temps with external sensors, this has allowed a significant simplification of that automation. In fact, I have also split it into 2 automations to make it much simpler to manage/configure. Recipe is currently in dev branch on our github but here it is below.

Welcome any feedback.

github.com

asantaga/wiserHomeAssistantPlatform/blob/dd47434d9c567edffea6d768d5fd85ab237403cf/recipes/manage_temps_v2.md

# Using External Temp Sensor to Manage Room Temp Accuracy V2

The basic premise of this automation is to monitor a series of external temperature sensors and boost wiser room heating to reach the correct temperature as set by the schedule, which is one of the failings of having the temp sensor in the iTRV as it is too close to the heat source to be truly accurate for a whole room and often shuts the heating off before the room is at the correct temp.

On updates from the external temp sensor, it will compare this to the scheduled temp of the Wiser climate device (aka room).  If the room is not already heating or boosted, it will boost the room by 1.5x (adjustable) the difference.  I have found this to give pretty good results but this may need tweaking for your own home.

It will also look if the current room temp is within 0.5C (adjustable) of the scheduled temp and cancel any boost if it is.

## There are 3 requirements for this automation to work:

1) You need at least version 3.0.20 of the Wiser integration for HA.  It uses the 'current scheduled temp' attribute that was new in this version.
2) You need at least v2022.4 of Home Assistant for the trigger variable functionality
3) That your temperature sensors are setup in HA Areas with the Wiser Climate device you wish to control in the same area.

## Changes in V2

### 1) Splitting Into 2 Automations
I originally tried to write this as a single automation (which worked fine) however I think it added quite a bit of overhead to HA as I could only trigger it on all state changes.  It was also very difficult to debug as each state change for any device triggered it and therefore traces contained triggers not for what I was interested in debugging.  As such, it is now split into 2 main parts.  
  - Part 1 (Fire Event When Room Monitoring Temp Sensors Change Reading) is the automation to monitor for temperature changes in the devices I am interested in and fire a customer event when a temperature change is registered.
  - Part 2 (Manage Wiser Heating From Ext Temp Sensor) is the automation, triggered by this custom event to find the Wiser Climate device in the same room as the temp sensor and boost/cancel boost where necessary.  It also logs key informaiton in the logbook so you can see when it has activated, what the schedule temp/sensor temp was, how much it boosted by etc and also when it cancelled a boost.

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msp1974 · April 28, 2022, 9:18pm

Looking for some feedback on a possible new feature for this integration. It would use the fantastic zigbee2mqtt-networkmap card by azuwiz to display how all your devices are connected in the zigbee network. Should we do this? Would it be useful? Image below of how it would look.

tombadog · April 29, 2022, 10:25am

Yes, this would be great and very useful!