Xiaomi Zigbee door sensor promotion price at Gearbest - £4.58 @ Gearbest
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Xiaomi Zigbee door sensor promotion price at Gearbest - £4.58 @ Gearbest

55
Found 8th Nov
OK, this is a pound or so cheaper than the last time I got them on a promotion price.
Dinky sized door/window sensor to link up to your Xiaomi or Samsung Smartthings hub. At this price, you can buy 6 compared to a single Samsung sensor (rough calculation).

55 Comments

Fantastic. What does it do? I'm trying to get into the xiaomi eco system. Would I need a zigbee hub for this to fully work? Or can I use the xiaomi Mi home app?

is there any promo codes around to bring it down in price further?

Original Poster

As per the other Xiaomi/Samsung posts/discussions, with Zigbee devices you'll need a Zigbee protocol hub, which could be Xiaomi's own (and you add the sensors to the hub via the Mi Home app) or Samsung's Smartthings hub.

It's a simple connect/break sensor that will flag up when a door/window is opened/closed. The battery can last up to 2 years, the range can be 7m or so to the hub.
If you had other devices, it could trigger a doorbell alarm, turn on a light, or activate an alarm, etc, etc.

In case it’s any use, the new Amazon Echo Plus has a built in zigbee hub : cnet.com/uk/…rt/

Original Poster

deeeemon6666 m ago

is there any promo codes around to bring it down in price further?


I don't think so, the promo codes tend to $6 etc, and on higher ticket prices.
This is the lowest I've seen. The last time was £5.50 or so and I snapped up 5. Will probably get another batch now, as backup and put on cupboard doors (maybe one on the fridge as a deterrent/reminder to stick to my diet).

Original Poster

pedd1 m ago

In case it’s any use, the new Amazon Echo Plus has a built in zigbee hub : …In case it’s any use, the new Amazon Echo Plus has a built in zigbee hub : https://www.cnet.com/uk/pictures/the-amazon-echo-plus-adds-in-zigbee-support/


Yes, in yesterday's discussion on the Button switch, it's an alternative hub I believe will work with these sensors.

Original Poster

ok, I won't put this up as a separate post, but the Xiaomi PIR sensor is also a quid cheaper than I last saw.
These are very small and also measure light intensity- so for example, you trigger switching on a lamp when it gets dark.

gearbest.com/ala…tml


I have no association with Gearbest, just realise that a lot of us on here are getting into home automation, and at these prices, why not.

mcek7 m ago

As per the other Xiaomi/Samsung posts/discussions, with Zigbee devices …As per the other Xiaomi/Samsung posts/discussions, with Zigbee devices you'll need a Zigbee protocol hub, which could be Xiaomi's own (and you add the sensors to the hub via the Mi Home app) or Samsung's Smartthings hub.It's a simple connect/break sensor that will flag up when a door/window is opened/closed. The battery can last up to 2 years, the range can be 7m or so to the hub.If you had other devices, it could trigger a doorbell alarm, turn on a light, or activate an alarm, etc, etc.

The hub connects to a router? So I'd still need to buy a hub? Or a echo device? Thanks for the response.

So this makes a noise when the door opens/closes?

Just to clarify, these are XiaoMi Aqara sensors which have different shapes and improved compatiblity for ZHA 1.2 standard. Compared to the previous Xiaomi sensors, they will saving you a lot of efforts when paring with 3rd party system e.g. Samsung SmartThings.

Original Poster

EN1GMA6 m ago

The hub connects to a router? So I'd still need to buy a hub? Or a echo …The hub connects to a router? So I'd still need to buy a hub? Or a echo device? Thanks for the response.


Yep. If you have a radio protocol sensor/device, you need a hub/pc+usb dongle. If you access that hub via an app, you'll need an internet connection. The Echo will need a router as well, and internet. Cloud based.

The only way of using home automation withoutthe internet, is the pc/Pi box and Home Assistant, etc, but you'll still use a router for IP addresses of hubs/smart WiFi bulbs/switches, but that's a local network and doesn't need to be internet connected.

Just bought 2 lol.... Just need a discount on the hub.

mcek2 m ago

Yep. If you have a radio protocol sensor/device, you need a hub/pc+usb …Yep. If you have a radio protocol sensor/device, you need a hub/pc+usb dongle. If you access that hub via an app, you'll need an internet connection. The Echo will need a router as well, and internet. Cloud based.The only way of using home automation without the internet, is the pc/Pi box and Home Assistant, etc, but you'll still use a router for IP addresses of hubs/smart WiFi bulbs/switches, but that's a local network and doesn't need to be internet connected.

So the hub wires up to the router. These door sensors are then registered to the hub via the mi home app and bingo?

Original Poster

BluCola6 m ago

Just to clarify, these are XiaoMi Aqara sensors which have different …Just to clarify, these are XiaoMi Aqara sensors which have different shapes and improved compatiblity for ZHA 1.2 standard. Compared to the previous Xiaomi sensors, they will saving you a lot of efforts when paring with 3rd party system e.g. Samsung SmartThings.


Exactly. From what I read on Smartthings forums, the 1st generation were a pain to pair up, or didn't provide you with correct battery info. These Aqara branded are 2nd generation, which clear up the pairing as standard Zigbee sensors.

mcek17 m ago

As per the other Xiaomi/Samsung posts/discussions, with Zigbee devices …As per the other Xiaomi/Samsung posts/discussions, with Zigbee devices you'll need a Zigbee protocol hub, which could be Xiaomi's own (and you add the sensors to the hub via the Mi Home app) or Samsung's Smartthings hub.It's a simple connect/break sensor that will flag up when a door/window is opened/closed. The battery can last up to 2 years, the range can be 7m or so to the hub.If you had other devices, it could trigger a doorbell alarm, turn on a light, or activate an alarm, etc, etc.


I think the 7m would put me off as i'd have to end up buying a few hubs to cover my house. It has thick brick internal walls and the wifi doesn't reach that far with my router. Cans see this being awkward. Can you have two hubs working together or is there an extender or something?

So if these happily work with a SmartThings Hub.
Oh no, now how many windows, doors etc do I want to cover. This could get messy.

EN1GMA9 m ago

So this makes a noise when the door opens/closes?


This sends a signal to a Hub when something opens or closes. The Hub can then act on that signal.
Becomes more useful as part of wider home automation.
e.g.:

1) Turn on lights when I open the front door
2) Email me if back door is opened during the day

Original Poster

EN1GMA3 m ago

So the hub wires up to the router. These door sensors are then registered …So the hub wires up to the router. These door sensors are then registered to the hub via the mi home app and bingo?


Their own hub is £18 just now from Gearbest, but I've seen it at £15 before.
Or wait for a Samsung hub promo (was £50 in Amazon recently), but remember the Smartthings can do a bit more.

However, the Xiaomi hub has an alarm that you can setup, or play ringtones as a doorbell, or flash it's own light.

Original Poster

Oneday777 m ago

So if these happily work with a SmartThings Hub. Oh no, now how many …So if these happily work with a SmartThings Hub. Oh no, now how many windows, doors etc do I want to cover. This could get messy.


But, as I've read on forums in the US, Australia, Europe, these prices are as cheap as chips, and compared to other Zigbee brands I'll have a double chip butty please.

Original Poster

deeeemon66616 m ago

I think the 7m would put me off as i'd have to end up buying a few hubs to …I think the 7m would put me off as i'd have to end up buying a few hubs to cover my house. It has thick brick internal walls and the wifi doesn't reach that far with my router. Cans see this being awkward. Can you have two hubs working together or is there an extender or something?


Standard Zigbee devices will extend a network if they are powered. A bettery powered sensor will not extend coverage. A second Xiaomi hub might extend the network, I'm not sure. If the hub is following standard Zigbee protocol as well, it should do. Will need to read up on that though.

To note, I went down the home automation road where I also have a Zwave connection on my pc for a few Zwave door sensors (on the garden gates, greenhouse) which have a longer range (868MHz radio not WiFi (Zigbee uses WiFi signal range))
Edited by: "mcek" 8th Nov

i want to get into home automation but don't want to get into one where you're walled into one eco system. any videos or anything where it shows how these things work in combination?i good youtube search but was wondering if anyone knows of a video which they already know about.
ta.

I guess i'll have to wait for a offer on the hub(xioami or otherwise)

EN1GMA7 m ago

I guess i'll have to wait for a offer on the hub(xioami or otherwise)


I'm accumulating the bits as and when they are cheap, just waiting for the hub thing now and they i can start fiddling around with it. I am also concerned about getting walled into one system but willing to try it out because of the bargain prices. Using of the Home Automation thing on my Raspberry Pi was too complicated for me so i think this is the way to go.

mcek16 m ago

Standard Zigbee devices will extend a network if they are powered. A …Standard Zigbee devices will extend a network if they are powered. A bettery powered sensor will not extend coverage. A second Xiaomi hub might extend the network, I'm not sure. If the hub is following standard Zigbee protocol as well, it should do. Will need to read up on that though.To note, I went down the home automation road where I also have a Zwave connection on my pc for a few Zwave door sensors (on the garden gates, greenhouse) which have a longer range (868MHz radio not WiFi (Zigbee uses WiFi signal range))


I think i will also be doing some reading up too on all of this.

Question for anyone that has the Xiaomi hub. I'm using these with a smartthings hub, and a smart app to monitor devices, I know when any devices have stopped responding and need to be checked. Is there any functionality like this with the Xiaomi hub?

Original Poster

xmikebx8 m ago

Question for anyone that has the Xiaomi hub. I'm using these with a …Question for anyone that has the Xiaomi hub. I'm using these with a smartthings hub, and a smart app to monitor devices, I know when any devices have stopped responding and need to be checked. Is there any functionality like this with the Xiaomi hub?


The MiHome app will tell you the online/offline status, and can show you a log, eg the last 20 events for a particular door sensor.

If you want to know if there's an advantage using the Xiaomi hub over the Smartthings, I wouldn't say so.
Their hub has a nightlight function, an alarm/ringtone function, chinese only internet radio, but some lag to the China server. But it can be opened to use with local network only home automation programs, maybe the one advantage.
The Samsung will read the Zigbee sensors, and other protocols, though really only cloud based functionality.But you have more online community support, and a warranty.
Edited by: "mcek" 8th Nov

Thanks mcek, that's good to know. Ive got some of these I'm not using so I'll set my mum up with an Xiaomi hub for peace of mind.

mcek you are a PRO with this stuff!!

Original Poster

deeeemon66618 m ago

mcek you are a PRO with this stuff!!


No, I've just started going into all of this when my old Friedland alarm setup gave up the ghost. No-one cares about a siren going off, and I decided to start with smart devices... looked at proprietary packages, looked at the various protocols, searched what forums were around and community help, etc. With so many Xiaomi posts on here regarding mobiles, I looked at what Gearbest and Banggood were about, first purchase was a hub and a single sensor!

All these devices are good, until you realise if you ring the cops to say someone has opened a window to your house, you have zero chance of them responding in a timely fashion....some burglaries are taking a week before the police go round, and it is now being set up so you can report a burglary online to get your crime number...

Original Poster

Aeschylus15 m ago

All these devices are good, until you realise if you ring the cops to say …All these devices are good, until you realise if you ring the cops to say someone has opened a window to your house, you have zero chance of them responding in a timely fashion....some burglaries are taking a week before the police go round, and it is now being set up so you can report a burglary online to get your crime number...


So replacing a proprietary alarm system with something that can also be used for other things doesn't change anything.
Sensors can tell you if you've left a window open before you leave. Open the door and the system can switch on lights for you and start the kettle. Or start a camera to record who's coming in. Home automation isn't only security, but that can be a start.

Original Poster

EN1GMA2 h, 56 m ago

i want to get into home automation but don't want to get into one where …i want to get into home automation but don't want to get into one where you're walled into one eco system. any videos or anything where it shows how these things work in combination?i good youtube search but was wondering if anyone knows of a video which they already know about. ta.


My first concern was that I didn't want a system that totally relied on the internet connection. Connected to a router is ok, the router can be offline.
When I started reading about Home Assistant, Domoticz, etc, they pointed out that the Xiaomi can be put into a 'developer mode' so you can use it 'in house, offline', confirmed on forums.
So compared to the price of other hubs, it was a cheap gamble to start off and try it, with the intention of integrating with a home automation system later on.
To be clear, I want to go further, link greenhouse watering systems, my weather station, monitor the cat door flap, whatever comes up to tinker around with. But a one-off hub and several cheap sensors was the place to start. No YouTube, just reading forums, googling home automation, zigbee, zwave, etc.

Note, there are other hubs around, eg Trust computers also do a home system similar to the Samsung, but it's a locked in eco system, the Samsung being more open. Interesting to see how the new Echo Plus does with the Zigbee sensors.

Sounds crap

I've bought 4 of these xiaomi sensors (although mine are a slightly different shape to the one pictured) and they work flawlessly. They have even outlived my smartthings sensor which was always giving me issues, even before it died. It's worth noting that these can be tricky to pair with the SmartThings hub, but once you do that you're away. Should also mention to anyone thinking of getting the Xiaomi motion sensor that although there are plenty of people who have this working with SmartThings, I've never managed to get mine to pair properly.

Original Poster

DannyBoy995 m ago

I've bought 4 of these xiaomi sensors (although mine are a slightly …I've bought 4 of these xiaomi sensors (although mine are a slightly different shape to the one pictured) and they work flawlessly. They have even outlived my smartthings sensor which was always giving me issues, even before it died. It's worth noting that these can be tricky to pair with the SmartThings hub, but once you do that you're away. Should also mention to anyone thinking of getting the Xiaomi motion sensor that although there are plenty of people who have this working with SmartThings, I've never managed to get mine to pair properly.


Did you have the 1st generation PIR, as it sounds like your door sensors were the rounder shape 1st gen too?
I did read on a smartthings forum about pairing problems with 1st gen.

EN1GMA4 h, 41 m ago

i want to get into home automation but don't want to get into one where …i want to get into home automation but don't want to get into one where you're walled into one eco system. any videos or anything where it shows how these things work in combination?i good youtube search but was wondering if anyone knows of a video which they already know about. ta.


I'm hoping to get some Hue stuff on black Friday and have been wondering about the difference between hue bridges and zigbee hubs etc.

This thread prompted me to stay reading again. I found this article about the zigbee protocol quite informative about how devices can link together:

pocket-lint.com/new…ome

I was also reading about zigbee vs z-wave.

It seems like zigbee is shorter range (but problems with range are overcome using it in a mesh network), it's also open source or free for manufacturers to use.

Z-wave is longer range, but manufactures have to pay to licence the use of it. So I wonder if it will end up being the more expensive but slightly more robust option.

Right, back to reading...

Original Poster

MSK.33 m ago

I'm hoping to get some Hue stuff on black Friday and have been wondering …I'm hoping to get some Hue stuff on black Friday and have been wondering about the difference between hue bridges and zigbee hubs etc. This thread prompted me to stay reading again. I found this article about the zigbee protocol quite informative about how devices can link together:http://www.pocket-lint.com/news/129857-what-is-zigbee-and-why-is-it-important-for-your-smart-homeI was also reading about zigbee vs z-wave. It seems like zigbee is shorter range (but problems with range are overcome using it in a mesh network), it's also open source or free for manufacturers to use.Z-wave is longer range, but manufactures have to pay to licence the use of it. So I wonder if it will end up being the more expensive but slightly more robust option.Right, back to reading...


The traditional players in the zigbee/zwave market offer products costing £30-50 a device.
Xiaomi opened up the Zigbee market with cheap prices. It was worth a start, I put my plans for a Zwave setup on hold.

Then I found Foniacs selling the cheap Zwave sensor, and the ridiculously cheap Zwave USB dongle. I bought a couple before it was posted on here
hotukdeals.com/dea…567


This opened up the possibility of using Home Assistant/Domotocz on a Pi.
Yes, the Zigbee (WiFi band) range is shorter than Zwave (868Mhz), but each has its place. I'm testing them out, will rearrange when I get used to them both. And to team them up with the Sonoffs relay switches, I'm hoping to build a reasonably cheap set up.

Oh, yes, Sigma industries open sourced the Zwave protocols.
openzwave.com/
openzwave.com/hom…ews
Edited by: "mcek" 8th Nov

mcek13 m ago

The traditional players in the zigbee/zwave market offer products costing …The traditional players in the zigbee/zwave market offer products costing £30-50 a device.Xiaomi opened up the Zigbee market with cheap prices. It was worth a start, I put my plans for a Zwave setup on hold.Then I found Foniacs selling the cheap Zwave sensor, and the ridiculously cheap Zwave USB dongle. I bought a couple before it was posted on herehttps://www.hotukdeals.com/deals/heiman-z-wave-doorwindow-sensor-hs1ds-two-for-1123-smatthingsvera-ect-749-each-foniacs-uk-ebay-2804567This opened up the possibility of using Home Assistant/Domotocz on a Pi.Yes, the Zigbee (WiFi band) range is shorter than Zwave (868Mhz), but each has its place. I'm testing them out, will rearrange when I get used to them both. And to team them up with the Sonoffs relay switches, I'm hoping to build a reasonably cheap set up.Oh, yes, Sigma industries open sourced the Zwave protocols. http://www.openzwave.com/http://www.openzwave.com/home/news


Thanks for the info I still trying to get a handle on how it quite all fits together.

I wondering if living in a flat, I would ever have call to use z-wave at all. So it might be a non-issue for me.

Am I right I thinking of you want to make your own hub in any type of pc, you need a hardware dongle for each protocol then?

Or does this this open wave thing get round that?

I guess even if they have open sourced reading/receiving the information, manufactures would still have to pay for the licence to make the devices.

Original Poster

MSK.28 m ago

Thanks for the info I still trying to get a handle on how it quite all …Thanks for the info I still trying to get a handle on how it quite all fits together.I wondering if living in a flat, I would ever have call to use z-wave at all. So it might be a non-issue for me.Am I right I thinking of you want to make your own hub in any type of pc, you need a hardware dongle for each protocol then?Or does this this open wave thing get round that?I guess even if they have open sourced reading/receiving the information, manufactures would still have to pay for the licence to make the devices.


Yes, you would need a hardware dongle for each radio protocol.
Everspring, Aeon, Sigma usb dongles for Zwave, £25-50
Zigbee add-ons boards for Raspberry Pi, also a bit costly, but there are bare-board usb+antenna on ebay/banggood etc.
So a £5.99 zwave dongle from Foniacs and a £15 Zigbee hub from Gearbest was a compromise.
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