The Big Picture. Will this work?
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Greetings everybody.
I'm beginning to dig myself into the topic of DIY homeautomation :D But there are also some questions i can't answer myself properly :(
I'm planning the following setup:- raspi as OpenHAB Base with raspbian
- MQTT Gateway (installed on the pi? possible?)
- sensors:
- energy source: battery for all. I don't want to cut cables into my walls (besides: my wife would kill me :D ) runtimes should be at least 6 months ^^
- transmission sensors -> gateway: WiFi with (WPA2 enabled) would be awesome, maybe bluetooth4 (with bluetooth low energy ??)
- sensor types: temp, humidy and door/window sensors
Any chance to archieve this?
Thx
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OpenHab on a pi is a good choice.
I would use an Arduino Uno with an ethernet shield for the MQTT gateway, so much easier to setup.
A good 18650 3.7v battery should give you more than 6 months if you power trim you sensors.
And the transmission would be by using NRF24L01+'s.So all about making it easy for yourself:)
So to answer you question.. Yes, should be easy to achieve fairly fast.
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@tbowmo
jep thats the target on the sensor side. I'd select an ardiuno pro micro (3,3V), strip the LED from it an connect the sensors and the NRF24L01+ to it. Of course i could buy your sensor board (and maybe, depending on price an availability i will), but where is the fun and the learning progress? :D@Magiske
but why an extra device for the gateway? Is it really "too hard" to connect the receiving NRF24L01+ via the gpio and run it under raspbian? An extra device means extra costs and extra wiring (power, LAN). -
@dakky Well you can do the gateway for around $13ish and thats easy. Adding the gateway module to the running OpenHab could be easy if they can coexist. I have not done that, so again, it could be easy. But since you are just starting out, keep it easy.
And afterwards, you can reuse the uno for other projects.. -
