A very basic system of irrigation based in arduino uno v3 designed to work in arid climates.
Simple diagram of how everything should be wired.
Simple schematics, note the light sensor that isn't wired since I can't get it to work with the rest of the project.
But the code, DHT and the RTC, still gets the desired outcome, since anyways the light intensity it is not a good idea To water your plants when it's 34ºC in the afternoon, whatever the amount of light. In the future i will rectify it, but for the moment it is as good as it gets.