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Soil Moisture Humidity Sensor Module with Cabled Probe

Soil Moisture Humidity Sensor Module with Cabled Probe

The Soil Moisture Humidity Sensor Module with a corrosion-resistant cabled probe is designed to accurately measure the moisture content of soil. Ideal for gardening, agricultural automation, and environmental monitoring, this module helps you manage irrigation systems efficiently by offering real-time soil humidity data. Built with durability in mind, its high-resistance materials ensure long-term outdoor use without degradation.

This sensor outputs both analog and digital signals, allowing for a range of applications from basic threshold-triggered systems to precise moisture level measurements. It is compatible with various microcontrollers such as Arduino, and it integrates easily with OpAmp comparator boards for automated irrigation setups. A built-in potentiometer allows you to adjust the digital output threshold to trigger actions based on specific moisture levels.

Package Includes:

  • 1 x Soil Moisture Humidity Sensor Module with Cabled Probe

66.15 AED 66.15 AED (Tax included)

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Features:

  • Dual Output: Provides both analog and digital outputs for flexible use.
  • Corrosion-Resistant Probe: High-quality materials resist rust and oxidation, ensuring long service life.
  • Adjustable Threshold: Potentiometer allows setting the digital output moisture level threshold.
  • Wide Compatibility: Works with Arduino, ESP8266, ESP32, Raspberry Pi, and comparator boards.
  • Reliable Signal Output: Digital output goes LOW when moisture exceeds the threshold.
  • Compact Design: Small PCB size with bolt holes for easy mounting.
  • Easy Integration: Plug-and-play with microcontroller projects, ideal for beginners and professionals.

Specifications:

Parameter Value
Operating Voltage 3.3V - 12V DC
Current (Normal) < 20 mA
Current (Digital Output) Max 30 mA
Operating Temperature -25°C to 85°C
Analog Output Variable voltage based on soil humidity
Digital Output LOW when moisture exceeds threshold
Dimensions 36mm x 15mm x 17mm (L x W x H)

Pin Connections:

Pin Description
AO Analog Output – proportional to soil moisture level
DO Digital Output – LOW when moisture exceeds threshold (set via potentiometer)
VCC Power Supply – 3.3V to 5V
GND Ground

Applications:

  • Automatic Watering Systems: Trigger irrigation when moisture drops below a set level.
  • Plant Growth Monitoring: Record soil moisture data to study plant growth under varying humidity conditions.
  • Irrigation Optimization: Reduce water usage by automating irrigation in agricultural setups.
  • Greenhouse/Environmental Monitoring: Maintain optimal soil conditions in controlled environments.
  • Educational Projects & Research: Ideal for learning about soil physics and agricultural experiments.

Notes:

  • Intermittent Use Recommended: Do not leave the sensor probe in the soil continuously to avoid corrosion or deterioration.
  • Soil Type Matters: Sensor sensitivity may vary depending on soil composition and moisture retention.
  • Effect of Fertilizers: Dissolved minerals in water may influence sensor readings.

Wiring Example:

Connect the sensor as follows to an Arduino:

  • VCC → 5V
  • GND → GND
  • AO → A0 (Analog pin)
  • DO → D2 (Digital pin)

Code Example (Analog Read):


int sensorPin = A0;    // Analog pin connected to sensor AO
int value = 0;

void setup() {
  Serial.begin(9600);  // Start serial communication
}

void loop() {
  value = analogRead(sensorPin);  // Read analog value from sensor
  Serial.print("Soil Moisture Level: ");
  Serial.println(value);
  delay(1000);  // Wait for 1 second before next reading
}

Resources:

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