Keyestudio RJ11 EASY plug Soil humidity Sensor Module for Arduino STEAM

The Keyestudio RJ11 EASY plug Soil Humidity Sensor Module is an accessible analog sensor designed to measure moisture levels in soil. Ideal for South African students, hobbyists, and educators, it simplifies the creation of smart gardens and automated watering systems. This module is designed to connect seamlessly with an EASY plug control board for solderless prototyping.

Smart soil moisture monitoring

This sensor measures the moisture level of the soil surrounding its probes, making it perfect for tracking the water levels of indoor plants or urban gardens. It allows you to build automated systems that remind you to water your plants or trigger irrigation when dry.

Resistance-based analog detection

The module passes a small electrical current between its two probes to measure soil resistance. Wet soil conducts electricity more easily, resulting in lower resistance, while dry soil conducts poorly and shows higher resistance.

EASY plug RJ11 connection

Featuring an RJ11 EASY plug connector, this module eliminates complex breadboard wiring and prevents incorrect connections. It must be used in conjunction with a compatible EASY plug control board, making it ideal for rapid classroom setups.

Dual voltage compatibility

Operating at either 3.3V or 5V, this sensor integrates easily with standard microcontrollers. It runs efficiently with a low working current of 20mA or less, making it suitable for continuous monitoring applications.

Durable immersion tin finish

The sensor probes are treated with an immersion tin surface finish to help protect the hardware from soil corrosion. This ensures more reliable readings over time when deployed in damp earth.

Analog output specifications

The module provides an analog output voltage ranging from 0V to 2.3V based on the moisture level detected. This analog signal can be read directly by your microcontroller to trigger custom actions based on soil dryness.