Hi, you can try these power supplies: https://www.aliexpress.com/store/group/UPS-Charge-Function-switch-power-supply/1242857_501520362.html?spm=a2g0o.detail.100008.25.56f87402HSB2Og The are for 12V, but also support an external battery. I have two that work very well.

Advantage of this sensor is fast and easy installing by the non qualified personal. The sensor is designed for large agriculture facility with many greenhouses where is needed to be controlled temperature and humidity, the atmospheric pressure is for control the motor of air inlet and outlet. With help of the sensor installed outside the greenhouse provide information about positive/negative pressure inside the greenhouse. Finlay the software read accurate temp/humid value of the Si7021, and only atmospheric pressure of BMP180, the temperature sensor inside the BMP180 is used only by the sensor itself to provide accurate atmospheric pressure measurements. The sensor can be used also for home automation, and drone applications where is needed correction of the UAV barometric sensor compared to the ground barometric sensor, also humidity measurement can help the pilot to calculate more accurate flying time.

if you find a way to make it work, pls share the project

@neverdie that's quite some money...

Awesome project, I wish I made something like this. (I actually wanted to make something like this when I was in school) Very clean and nice presentation and realization, with a lot of attention to details. All is very realistic, I can imagine that it took quite some time making it. Thanks for sharing the details!

@bobbybobbybobby @pansen and @tbowmo fimaly i got arduino ide running on my rpi!!! i was trying this for about a weeks now. thanks for the support.

Firmware upload doesn't seem to work BR Jonas

I added the capacitor, but there's always the same problem

@Chester good point, but I was restarting the arduino and still couldn't get this to work correctly. Also, the missing "end" was just missed out of the paste here, it was in my code.

I think the something about order of initialisation was changed that fixed this problem. Try 1.4.1

@kunall the best recommendation against openhab for me was ugly interface and problems with running it (java). I was using domoticz since early version with own interface on arduino,now I've switched everything for MySensors. It still lacks some functions but Inwait for further development as even programmers of domoticz start to use MyS hardware

@Fat-Fly MySensors is now natively supported to run on Raspberry. See here for instruction on how to build: https://www.mysensors.org/build/raspberry

Hey there @Chaotic ! This is Fay from codebender.cc Thank you for using codebender! I just wanted to let you know that one of the sketches you are using in this comment has been deleted and so it is not available for users to view it. Let me know if you have any question.

@catcher Thanks, I tried this Perl script and it is working out of the box with OpenHAB2! And I'm sending with MySensors 2.