Automatic plant watering
A soil moisture sensor measures dryness; when the soil dries out, a relay runs the water pump briefly and then waits for the soil to soak it up.
Medium50 minutessensor calibrationdriving loads with a relaywait-time logic
Parts
- ☐ Arduino Uno
- ☐ Capacitive soil moisture sensor
- ☐ 5 V relay module
- ☐ 5 V mini water pump and tubing
- ☐ Separate 5 V supply
- ☐ Jumper wires
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