I'm new here, and one of the projects I'm thinking about is a system to water potted plants. I haven't ordered any parts yet.
I was thinking about putting a soil probe in the flowerpot and having an elevated cistern. The soil probe would tell a board when that pot needed to be watered, then the board would open a valve at the bottom of the cistern, and a flow meter would report back the flow rate so that the board could shut the valve when a certain amount of water had passed through. Probably not the most efficient way of getting the job done, but I would be able to apply some concepts to another project I have in mind.
If that sounds good, I was hoping I could get some opinions/advice about some hardware I was looking at.
I think I've seen posts where people have talked about using this:http://www.seeedstudio.com/depot/water-flow-sensor-p-635.html?cPath=6&zenid=594b89701c7a2015a13064b67aed4f44
so far I'm not worried about this peripheral not working with a board (the attitude may change if I try this out), the only worry I have with that now is the flow rate wont be high enough to register.
What I'm not seeing is people talking about is this:http://www.seeedstudio.com/depot/electric-solenoid-valve-p-636.html
It looks like it could be used in this application, I like it because it is inexpensive, but I don't see examples of it being used with arduino boards. Did I abandon my search too soon, or not look very hard? Can any give or cite examples of this being used with arduino boards? Perhaps there is something else out there like this that would be a better fit for this type of project?