My Project

For the internet you could add a GSM shield to the gateway or a 3G usb stick to the Rpi. If you only pay for the data that's send than you could leave the internet on 24/7. I would put the Rpi running the controller in the same house as the gateway so no data is lost because of a loss of the internet connection. If you would want to connect to the controller to check the statistics or status of the switches and sensors you would connect to the controller via the internet. Using a dynamic dns service it wouldn't be a problem if the ip-address of the controller changes. Sensors are connected to the arduino via cable. The sensor arduino connects to the gateway wirelessly. Thinking of it you could connect the Rpi to a VPN server running in your home so it will get a local ip-address of your home network. That way there's no need for the dynamic dns service.

Here it is :) RGBcontrollerNewV5_2.fzz

@Cai_Niao I am using HomeWave, an iOS app developed for Vera which is my controller.

Yes, this is a minimalistic NRF Arduion PCB: http://forum.mysensors.org/topic/595/pcb-boards-for-mysensors/11

@BulldogLowell LOL, eh!

Simple. We share our locations through Google, so we always can see where each other are 😀

@Moshe-Livne I agree that a floating valve would be a better solution if you had a fixed installation. This would allow you to keep the water on at all times and have the water barrel top itself off continuously. We have such a system, but it is a pain to run the pipes to everywhere the horses need the water, especially in winter when it's freezing. This means we have one of these, but the rest are filled using a regular hose. The implemented solution works well for having a hose lying around and stretching it to wherever we need to fill the buckets without wasting water or ruining the area by getting too wet. This has happened several times already, and not only was it a pain to clean up, but it also emptied our well so we had to go down and manually restarted everything by filling the system with water. In short, it is a failsafe system to guard against our own forgetfulness with a great deal of flexibility :-)

Could you share schematics, sketches? I may be intrested in building a similare device.

@kunall , do you have a wiring diagram for this? I am having some issues with my relay module (but i think this is to do with it being 3.3v)

I'm impressed. Nice work.

@AWI said: @David-M. It has limited sensitivity but enough to detect somebody passing by. The plastic cover is not fully transparent... OK. Thanks. I will have to change because in my case, the HC-SR501 does not detect anything

Interesting stuff. I have similar valves and thermostats to control them. It's an older floor heating system where the thermostats are starting to fail. I've been thinking of doing something similar since the thermostats, even ugly ones with just a dial and no lcd cost $50 a piece or something. It really starts to add up after a couple of floors.

The sketch is working!

@gregl said: Noticed you have dupe lines 54/67 and 55/68 also 101/103. Opps! Removed.