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HANDS-ON STEAM PROJECT

Smart Plant Irrigation

Grade: 9–10Difficulty: Intermediate

Build a low-voltage plant-watering experiment.

Instructions and Learning Resources

Overview

Learn about soil moisture monitoring and switching a low-voltage pump.

Steps

  1. Calibrate the soil sensor.
  2. Connect the pump through a suitable driver.
  3. Write threshold logic.
  4. Add timeout protection and test in small doses.

Protect power electronics from water.