The Electronic Leaf automatic watering machine

There are many automatic watering systems on the market, this thing is aiming to make the simplest possible watering mechanism that can reliably maintain soil moisture in a greenhouse. It doesn't provide real time phone based monitoring, or advanced logging. But it's pretty easy to make and seems to be reliable (the longest operating one I have has been running for almost a year without problems).

## Parts you need:
* laser cut the svg from 1/8"(actually 2.6mm) luan ply. I'm sure you coul