Unfortunately, this deal is no longer available
Xiaomi Mijia Smart Bluetooth Thermometer 3pcs for £10.87 delivered @ gearbest / Skylight A Store
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Xiaomi Mijia Smart Bluetooth Thermometer 3pcs for £10.87 delivered @ gearbest / Skylight A Store

EDITOR 30
Posted 2nd Dec 2019

This deal is expired. Here are some options that might interest you:

I have a real Cyber Madness Monday deal here!

With the 1st generation of this thermometer I can check the basement's temperature from my bedroom on the first floor.
Awesome and can be the part of your ecosystem, controlling AC heating and everything else which is compatible and can communicate through the Xiaomi BT gateway.

So the 2nd generation is even smaller and does the same thing!
3353915.jpg
I remember I paid around £10 for one of the 1st gen.
Now you can get 3 of the 2nd generation for £10.87!
Use the code " GB6194762 " and pay with fee free card in USD!
3353915.jpg
Main Features:
● Link with smart device via Mijia Bluetooth Gateway
● Baby mode reminder
● Ultra low power consumption, 1 x CR2032 battery can be powered for about 1 year
● High precision sensor
● Expressions help you understand temperature and humidity

General
Brand: Mijia
Model: LYWSD03MMC
Material: ABS

Dimensions and Weight
Product weight: 0.0600 kg
Package weight: 0.1000 kg
Product size (L x W x H): 4.30 x 4.30 x 1.25 cm / 1.69 x 1.69 x 0.49 inches
Package size (L x W x H): 8.40 x 5.70 x 5.50 cm / 3.31 x 2.24 x 2.17 inches

Package Contents
Package Contents: 3 x Thermometer, 3 x Wall Sticker, 3 x Chinese Manual
3353915.jpgFew things to consider before you go ahead:

  • Pay by credit card or PayPal so you could be protected in the case if something goes wrong
  • use fee free card and pay in USD to save a bit more
  • delivery sometimes could be long.
  • you may have to pay 20% extra in VAT plus import duty.


If you are not familiar with Aliexpress or shopping from China please have a look on this discussion : Guide to Aliexpress
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30 Comments
They don't work with the Mi Hub, do they?
Gannet02/12/2019 15:03

They don't work with the Mi Hub, do they?


You will need a Bluetooth hub
Gannet02/12/2019 15:03

They don't work with the Mi Hub, do they?



They work via Bluetooth. So, you need the BT gateway to use it as a controller for other devices. you can also use it without the gateway if you are around the device in Bluetooth range. In that case the function is limited to actually check the temperature and humidity.
Is that a humidity reading I see also?
Seems like you ALSO NEED to have a "ClearGrass" (really!) Mijia Bluetooth Gateway (costing more than a tenner?) ...

/Cross-posted like the others!
Edited by: "wdh" 2nd Dec 2019
Shame the bluetooth in Smartthings hub isn't activated, I read somewhere it does have a module.
Beware - this leads to another of those rabbit holes that you never knew existed! This one is called “mijia”...
So can you not just get an app on your phone to check these if all in Bluetooth range?

I would definitely buy if this was an option but not up for the a full bluetooth gateway solution
gdelve02/12/2019 17:34

So can you not just get an app on your phone to check these if all in …So can you not just get an app on your phone to check these if all in Bluetooth range?I would definitely buy if this was an option but not up for the a full bluetooth gateway solution


You can, however there's no history without the hub.
Coupon reached limit - boo
Why the mention of Aliexpress when this is Gearbest!?
GodVilla02/12/2019 23:08

Why the mention of Aliexpress when this is Gearbest!?


Aliexpress or shopping for China.
Same guide applies here as well because Gearbest ships from China 🇨🇳 or Hong Kong 🇭🇰
Tried today. It worked.
Killer03/12/2019 10:21

Tried today. It worked.



Thanks for reporting! I am glad it worked. I ordered it as well and hoping to get it delivered within 2 weeks.
Code worked for me too, the older ones work great with Home Assistant, hope these do too

(I connect mine to a separate Pi0 running bt-mqtt-gateway)
IAmTheDude04/12/2019 11:02

Code worked for me too, the older ones work great with Home Assistant, …Code worked for me too, the older ones work great with Home Assistant, hope these do too (I connect mine to a separate Pi0 running bt-mqtt-gateway)


Have these worked for you with Home Assistant?
emmpii825/01/2020 13:12

Have these worked for you with Home Assistant?


I havnt tried yet, not got round to it.

I recently moved from bt-mqtt-gateway to sensor.mitemp_bt in HA (avaible in HACS) and the older one worked fine. I think they are working on adding this new version into it shortly as well.
IAmTheDude27/01/2020 09:22

I havnt tried yet, not got round to it.I recently moved from …I havnt tried yet, not got round to it.I recently moved from bt-mqtt-gateway to sensor.mitemp_bt in HA (avaible in HACS) and the older one worked fine. I think they are working on adding this new version into it shortly as well.


ah right. I've not got the old ones and yeah with mitemp_bt it doesn't yet show up
emmpii827/01/2020 09:45

ah right. I've not got the old ones and yeah with mitemp_bt it doesn't yet …ah right. I've not got the old ones and yeah with mitemp_bt it doesn't yet show up


I don't think it will take them long, looks like they are just working on decoding the BT packets. Once that is done it should be easy to add in.
IAmTheDude27/01/2020 15:07

I don't think it will take them long, looks like they are just working on …I don't think it will take them long, looks like they are just working on decoding the BT packets. Once that is done it should be easy to add in.


Ah would be great then.

I don't really have anything at the moment that I'd create automations with using that data but eventually will get a few things.

Are you using Xiaomis hub or have you moved off to something else?
emmpii827/01/2020 15:14

Ah would be great then.I don't really have anything at the moment that I'd …Ah would be great then.I don't really have anything at the moment that I'd create automations with using that data but eventually will get a few things.Are you using Xiaomis hub or have you moved off to something else?


I only really use them as sensors myself, eventually want them in places like my PC cabinet etc to get a read of outside temps and ping a warning somewhere etc.

I've been on Zigbee2MQTT since it first came out for all my Xiaomi stuff, I didn't like the way the hub worked for it.

I should be an ambassador for Xiaomi tbh, 99% of my kit consists of it, all running through Z2M into HA. Node Red does all my automation's as there are palettes for it all so it just works.

Got the odd TPlink plug and Hue bulb here and there but really only brought them to play with and see how they intregrate. The Hue remotes are fantastic though, Z2M opens up a plethora of uses for it (each button has press, release, times pressed, length of press etc for them.)

Everything so far I've found a way to get into HA without using the hubs, better that the cloud stuff imho.
IAmTheDude27/01/2020 16:21

I only really use them as sensors myself, eventually want them in places …I only really use them as sensors myself, eventually want them in places like my PC cabinet etc to get a read of outside temps and ping a warning somewhere etc.I've been on Zigbee2MQTT since it first came out for all my Xiaomi stuff, I didn't like the way the hub worked for it.I should be an ambassador for Xiaomi tbh, 99% of my kit consists of it, all running through Z2M into HA. Node Red does all my automation's as there are palettes for it all so it just works.Got the odd TPlink plug and Hue bulb here and there but really only brought them to play with and see how they intregrate. The Hue remotes are fantastic though, Z2M opens up a plethora of uses for it (each button has press, release, times pressed, length of press etc for them.)Everything so far I've found a way to get into HA without using the hubs, better that the cloud stuff imho.


Right that's interesting. I've mainly got Xiaomi kit as well.

Will look at moving onto Z2M.
Are you also using a mesh network at home or are you doing fine without that?
emmpii827/01/2020 16:27

Right that's interesting. I've mainly got Xiaomi kit as well.Will look at …Right that's interesting. I've mainly got Xiaomi kit as well.Will look at moving onto Z2M. Are you also using a mesh network at home or are you doing fine without that?


Z2M was a game changer for me along with learning node red, once you have a 'template' of sorts for the buttons and sensors it becomes really easy to create automation's. I've converted 90% of my yaml to node red. The only yaml stuff left is HA specific stuff now.

Made it easier now we have lovelace, only one set of code to manage (I hate yaml...).

Hopefully buying a house this year so will be able to properly test out the zigbee mesh stuff, only have it on one floor at the moment so havn't been able to test out the full range yet.

I have got a shed load of auotmations all set up though for when I do have a house
IAmTheDude28/01/2020 10:45

Z2M was a game changer for me along with learning node red, once you have …Z2M was a game changer for me along with learning node red, once you have a 'template' of sorts for the buttons and sensors it becomes really easy to create automation's. I've converted 90% of my yaml to node red. The only yaml stuff left is HA specific stuff now. Made it easier now we have lovelace, only one set of code to manage (I hate yaml...).Hopefully buying a house this year so will be able to properly test out the zigbee mesh stuff, only have it on one floor at the moment so havn't been able to test out the full range yet.I have got a shed load of auotmations all set up though for when I do have a house


Good luck with the house and all

Got my Z2M running finally. Do these sensors automatically link at the moment? They're currently linked to my gateway and I've left them at that because didn't want to mess anything up
emmpii830/01/2020 20:27

Good luck with the house and all Got my Z2M running finally. Do these …Good luck with the house and all Got my Z2M running finally. Do these sensors automatically link at the moment? They're currently linked to my gateway and I've left them at that because didn't want to mess anything up


I'm on an older version of Z2M as there has been some changes since I first set it up and it would require a full re-pair of all my kit (which I CBA with at the moment).

I'd unplug the gateway first and then take one device and get it paired up, first time it has to be done manually.

When your happy with that one, start moving the rest over. You can plug the GW back in once the device has been paired to Z2M and it wont try and connect to the GW again.

I only used the GW once when I first got it so I barely used it so if you have the option to do any firmware updates or such to anything Id do them first.
IAmTheDude31/01/2020 09:52

I'm on an older version of Z2M as there has been some changes since I …I'm on an older version of Z2M as there has been some changes since I first set it up and it would require a full re-pair of all my kit (which I CBA with at the moment).I'd unplug the gateway first and then take one device and get it paired up, first time it has to be done manually.When your happy with that one, start moving the rest over. You can plug the GW back in once the device has been paired to Z2M and it wont try and connect to the GW again.I only used the GW once when I first got it so I barely used it so if you have the option to do any firmware updates or such to anything Id do them first.


Tbh I don't know which version I'm on I just got a ready flashed stick off eBay

I've moved my switches and door sensors over. I just never moved the temperature sensors over since they weren't listed in the supported devices.

Wait what the gateway links to Z2M too?
emmpii831/01/2020 09:56

Tbh I don't know which version I'm on I just got a ready flashed …Tbh I don't know which version I'm on I just got a ready flashed stick off eBay I've moved my switches and door sensors over. I just never moved the temperature sensors over since they weren't listed in the supported devices. Wait what the gateway links to Z2M too?


In the Z2M logs it should tell you FW version the Coordinator (the stick) is running so you can see:
(Coordinator firmware version: '{"type":"zStack12","meta" "transportrev":2,"product":0,"majorrel":2,"minorrel":6,"maintrel":3,"revision":20190608}}')

I don't think there is a massive difference in the FW (been a while since I updated my stick) but the Z2M (the app/code) gets updated pretty regularly and there were some big changes a while back which made it better.

It required a full re-pair of all devices though so i never got round to it.

If your getting data in Z2M then you are pretty much set, its that easy once the devices are paired.

If you have moved everything over then I'd box up/bin the GW TBH, doenst have much use now. There is some work on reflashing the GW to custom FW to act as a router but Im not gonna bother with it considering the sticks are cheap and easy enough to use as a router.
IAmTheDude31/01/2020 10:06

In the Z2M logs it should tell you FW version the Coordinator (the stick) …In the Z2M logs it should tell you FW version the Coordinator (the stick) is running so you can see:(Coordinator firmware version: '{"type":"zStack12","meta" "transportrev":2,"product":0,"majorrel":2,"minorrel":6,"maintrel":3,"revision":20190608}}')I don't think there is a massive difference in the FW (been a while since I updated my stick) but the Z2M (the app/code) gets updated pretty regularly and there were some big changes a while back which made it better. It required a full re-pair of all devices though so i never got round to it.If your getting data in Z2M then you are pretty much set, its that easy once the devices are paired.If you have moved everything over then I'd box up/bin the GW TBH, doenst have much use now. There is some work on reflashing the GW to custom FW to act as a router but Im not gonna bother with it considering the sticks are cheap and easy enough to use as a router.


Ah that's annoying have to pair everything up. Thinks like Xiaomi switches would need unmounting and all that faff considering they use stickers

I'm keeping the gateway as it works well as a night/morning light in the hallway for me atm. Oh and might well use it as an alarm for door sensors.

I'll try have a look at finding the router firmware for that. And on that topic just ordered the flashing kit off Ali express to set up a router using the sticks
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