Little Bird Circuits breadboard diagrams you can open in Fritzing Playground
PRP 7 — Automatic watering 6 parts · 16 wires · 4 views Download .fz Embed view

Soil moisture in, pump out, through a motor driver. The pump's power comes from its own supply, not the board — the two share only a ground. Fritzing has no pump part, so a DC motor stands in for it.

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Shared from Little Bird Electronics. Opens in Fritzing — this image was created with Fritzing, and its part graphics are CC BY-SA 3.0.