Hello everyone,
Sorry about my noobie question but here it goes: I am trying to control the rainbird 9V latching solenoid valves on my garden with arduino and esp8266 but the catch is, there is no electricity where I can place the module. My plan is to place arduino inside home, connect it to internet with ethernet shield or esp, send the command to the valves with RF. The issue is, I dont know what to use to receive data from arduino with RF and control valves with relays. It needs to be super low power so it can run at least a year on a 9v battery but it needs to send data in and out to arduino. Thanks a lot for any help!