Soil Moisture Humidity Sensor Module with Cabled Probe

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:

Pin Connections:

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:

• Soil Moisture Sensor Arduino Tutorial

Related Modules:

• Capacitive Soil Moisture Sensor – Longer lifespan and more precise measurements
• Water Pump Relay Module – Automate irrigation with pump control