Thanks @1technophile interesting stuff! What is the range like on 433? How does it go with brick?
Those rounded designed ones look nice without the antenna!
THis post on xiaomi sensors looks really promising too…
Xiaomi smart home I’m tempted to give that a shot and hope we get a HA intergration
Maybe @masterkenobi can give us some info about eh range of the door sensors he bought?
Mine are at maximum at 6 meters with two walls from the gateway
Sure. The range is pretty good. The gateway is on the ground floor and it can detect the sensor signal which is on the second floor. Sometimes it doesn’t. But I can always add another gateway on the second floor. It is so easy and cheap to make one.
If you are ok with DIY electronics, check MySensors
I’m not into using 433 for sensors, since if a two sensors transmit at the same time (or a sensor and a 433 switch), probably nothing will work.
I have tried MySensors. The problems with MySensors are…
However, I wouldn’t say I will not use MySensor at all. It is still good if I want to build a custom sensors such as temperature sensors, distance sensors, light sensors, etc…
check out what is happening on the Xiaomi Smart Home space. It is in the process of integrating into HASS, and is cheap as chips. I am just getting the wireless button and motion sensors installed and they are running fairly well at the moment. I havent tried the reed switches though. @jon1012 has a python script you can run as a service which publishes to MQTT for use in HASS until the component is ready.
Check out the thread Xiaomi smart home .
Hub AUD30
switch/Motion Sensor/Reed Switch AUD11
i got mine from Gearbest (im also in Australia, Perth)
Hello, do you have an idea of the range you are getting with this system and the battery life duration?
the one big unknown is the battery life. however they use CR2032 coil cell batteries, so are readily available.
Havent played with range yet. I’ll stick one out the back and see how it goes.
@palitu I’m excited about this! I bought a full set of sensors and hub this morning- door, motion, temp, rgb light and hub.
By the time gearbest finally ship I hope intergrated / to find a tutorial I can follow to get it up and running 
I got mine in a week. I used the DHL delivery for $7 extra. Worth it. I dont suppose you are in perth?
Nope in Sydney…
the wireless button is just on-off switch?
Apparently does three functions I read somewhere
Press
Hold
Longer press
Hold hold me to that though
I don’t understand …
press Ok
press longer OK
How can you distinguish a hold by a long press??
it has
/xiaomi/switch/158d00010aa036/status click
/xiaomi/switch/158d00010aa036/status double_click
/xiaomi/switch/158d00010aa036/status long_click_press
/xiaomi/switch/158d00010aa036/status long_click_release
edit: i have found 1 more…
Ok, good. This I understand. 4th I don’t understand
i think it sends it when you finally release the button. perhaps use it for a whilst pressing, do this, when released, do that.
A long hold could be great to control a dimmer if I counts the time…
E.g. On… 80%. … 60%… 40…etc
If you truly want the lowest price, then I doubt you will be able to beat an ESP8266 based board(I like the Wemos D1 Mini) connected to a door sensor. That will probably run you like $7. And then a few bucks more for a microUSB power supply and cable, which most people have a box full of.
It definitely requires some DIY, but they are awesome little boards that can do a lot.
i use arduino Nano’s
is about the same price
the only problem i have all the time is to get power supply on the place where i have my sensors and that its Always a bit bigger then the sensors which are complete already.