I’m trying to figure out the most cost effective (and reliable) solution for door / window sensors - I am in AU so z-wave has limited options (due to frequency) and i’m certainly NOT paying $60+ per sensor for each door / window.
I would love to hear what solutions everyone else had done for door / window sensors. Anyone had any luck with 433mhz RF sensors - the lack of encryption on these is concerning, but mostly the range / reliability is the big thing for me now. I just want to get started in HA in a smallish house but learn what I can take on a bigger project.
Ideally my budget would be around $25-35 AUD each i’m happy to buy a hub - I haven’t committed to Zigbee / Z-wave yet, (i’ve got wemo lights on zigbee but I understand that is a walled garden) so I was planning on getting a aeotec stick and use the multi sensors around the house (at $50 a pop with motion, temp and the rest) i am happy with that solution to get a few sensors in the main rooms.
In saying that can I get a smart things hub (would you recommend? to do both Zwave + Zigbee) as it avoids me getting a z-wave stick + hub and I found some mutterings online that these orvibo sensors work with smartthings.
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…
It takes time and effort to build your own sensors
It doesn’t look that good
The battery life is relatively worse than those generic 433Mhz sensors.
It costs more.
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.