Hello fellow forum, continuing my learning and laziness more than anything makes me have to irrigate 5 plants that have my cousin in the living room, I decided to address a mounting easy both hardware and software.
Gray matter is a simple assembly PIC 16F628A is enough if I want to extend you other sensors and pumps. The sensor is simpler than a toothpick, two pieces of galvanized wire 6/8cm in length is more than enough.
No posting the outline that I have not done (is working on the coach), but if I leave a picture of the sensor.
Also I leave the firmware made in PBP
When I finish I go to make the scheme more detailed information.
Greetings from Sarria, Lugo (Spain)