I want to use the W100 and Aqara automations to build a home thermostat for my central heating (UK boiler). Currently I just have an automation that switches the heating if the temperature is above/below a setpoint. However this means to change the temperature setting I need to change the automation.
Can you please expose such a feature on the W100 - some event/status when the temperature is above/below an adjustable setpoint - then I can use that event/status in my automation.
The device has not yet gone on sale on the global market, it will be known when it will start selling.
There is a vietnamese review where most screens were shown, I could not see these features supported.
Hi there, it sounds like a great idea.Letās evaluate it.
I purchased a W100 and there is no such trigger for me to make an automation to control my boiler.
Iām going to return the W100.
Iām very disappointed - it would be such a trivial easy feature for you to add and if you did it, you could compete with Tado and Nest.
How do you currently control the temperature of your boiler? Do you have a smart controller for your boiler? Nest currently requires two devicesāa remote control unit ļ¼which just like W100ļ¼and a unit connected to the boilerāto enable this scenario.
Hello, I use the Aqara T2 relay, the dry contacts of which start the boiler. In conjunction with this relay, I use a thermal head that is controlled by the Aqara relay on each battery and monitored by the Aqara temperature sensor. If you are interested, I can thoroughly tell you how I organized the control of heating automation.
Iāve built a fully automated seasonal system for my heat pump using only the Aqara.
Each season (Summer, Winter, and Spring/Fall) has its own set of three automations:
One for when weāre Home
One for when weāre Away
One for Night time
These are triggered based on the Aqara Security System mode (Home, Away, or Night).
In addition, I created three simple automations based on the outdoor temperature that take care of enabling or disabling the right seasonal profiles:
One automation activates the Summer automations when itās above 17 Ā°C
One activates the Winter ones when itās below 0 Ā°C
One handles the Spring/Fall set when the temperature is between 0 Ā°C and 17Ā°C
Each of these automations also disables the automations from the other seasons, so only the relevant ones are running at any time.
It works great and saves me from manually switching profiles as the weather changes.
I have a conventional wireless, non-smart, boiler thermostat from Valiant. To your question - boiler ātemperatureā is not controlled. It is on/off.
It is only via opentherm or ebus that one can independently control boiler water temerature. I am NOT asking for that here. All boilers can be controlled in an on/off manner, and many nest/tado installations have to control the boiler in this way, because many boilers in the UK are old and only support on/off control.
Anyway - back to my use case.
In parallel to that I use a T2 relay to also fire the boiler for some automations (like turn on for 30 mins after shower to warm the towel rail)
If you simply exposed an automation trigger for the W100 for when it is above/below the set temperature then I could use that instead of the Valiant unit. Itās a trivial addition and then you could complete with nest (T2 + W100 + automation = nest)
Somewhere information leaked that Aqara plans to make an external wall thermostat, maybe it will have such a function as you say. I also lack such a function in the W100, but the ability to select the sensitivity of the thermometer impresses me and helps in controlling the room. I also like additional information about the temperature of the selected thermometer. And to do as you say, I use an inactive TVR Aqara, tying it to it and select the function ābelow the setā or āabove the setā and control it that way.
One feature, such automation is always CLOUD (.
I am worried from your other replies that you think I am suggesting electrical changes to the W100. I am not.
I only need you to fix the firmware so I can make an automation if the W100 temperature is above / below the the set temperature. You have many triggers on the W100 already, I just need this extra one which is missing.
I think changing the firmware wonāt help. We need a new product that takes our suggestions into account 
Sorry @gafich10 then you misunderstood my specific request. Please donāt make the request larger than it needs to be or else they will never do it.
An automation trigger as I described would be enough for a on/off boiler adjustable thermostat in conjunction with a simple relay.
They could do a firmware update in 1 month. A new product is not going to be ready before winter.
Hello, I agree with you 100% and for this request for an additional function to be made for the W100 with the help of a firmware update. I currently have 3 W100s.
Iām just afraid that the W100 sensor lacks a (unplanned) microcircuit that can perform the function we want for the W100.