Hello, My dad has a small lemon tree at his house about 75 miles from where I live. He's having long term medical problems and isn't at the house, so I have to travel there once a week to water the tree. It's not a sensible situation. I have no experience with building an electronic project although I have done some reading about basics. I'm wondering if it is possible to build an automatic plant watering system with the following components. A controller (an arduino?) powered by a small (9v?) battery, a solenoid valve triggered by another small battery, and a moisture sensing probe. I'm hoping that the arduino could spend most of its time asleep (to extend the battery's life) and wake two or three times a day to take a reading from the moisture sensor. If the reading is below a set value then the arduino (or whatever controller is appropriate) would open the solenoid valve for a minute (allowing water to flow from a reservoir above the plant) then close it. The arduino would then go back to sleep.
It seems simple in theory, but I'm guessing. Thanks very much for any advice.
Gerard
It seems simple in theory, but I'm guessing. Thanks very much for any advice.
Gerard