Attach your paper clips to the side of your pot about 6 cm apart and sticking them at least ⅓ of the height of the clips into the soil. Make sure no parts of the two paperclips are touching each other.

Connect a crocclip from the GND leg on CodeBug to one of the paperclips. Now attach another crocclip from leg 0 on CodeBug to the other paper clip. Now connect a croclip to leg 0 and the other end to one leg of a 10k ohm resistor, then connect another crocclip to the other leg of the resistor and the other end of the croclip to the PWR leg.