Grove - Moisture Sensor

The Grove Moisture Sensor allows students to measure soil moisture levels, making it ideal for plant care systems, environmental monitoring, and smart gardening projects. It detects resistance between two probes inserted into soil to determine how wet or dry the environment is. This simple, yet powerful tool introduces learners to the concept of analogue sensing and automation in agriculture and sustainability.

¢ Educational benefits

• Encourages exploration of environmental science and sustainability
• Demonstrates analogue signal conversion and sensor calibration
• Teaches system design for automation (e.g., smart watering)
• Helps students build critical thinking through real-world scenarios
• Promotes STEM integration through data-driven learning

¢ Classroom ideas

• Design a smart garden with automated watering triggers
• Conduct experiments comparing water retention in different soils
• Use moisture data for classroom graphing or analytics tasks
• Combine with LEDs or buzzers for instant feedback systems
• Integrate with a display to track soil conditions over time

¢ Specifications

• Measurement Type: Soil resistivity
• Interface: Grove-compatible (u-blox version)
• Output: Analogue signal
• Setup: Insert directly into soil and read output via ADC