This is a redesign of a simple moisture sensor I found online for the arduino. Solder wires to nails (1 wire - 1 nail) then dip 2 nails into a gypsum container about 1/4in apart. After its dry take it out of the container and drop it in soil. After that you can read the resistance change as you water your plants.
No comments yet. Be the first!
Please sign in or create an account to comment.
Only the circuit's creator can access stored revision history.
