Example Code for Arduino-Soil Moisture Sensing

Hardware Preparation

• Hardware
  • DFRduino UNO R3 (or similar) x 1
  • Analog Soil Moisture Sensor For Arduino x 1

Software Preparation

• Software
  • Arduino IDE

Wiring Diagram

Other Preparation Work

Connect the sensor to the A0(Analog 0) pin on the Arduino board.
Open the Arduino Serial Monitor, and choose its baud rate 57600 as set in the code.

Sample Code

/*
  # Example code for the moisture sensor
  # Editor     : Lauren
  # Date       : 13.01.2012
  # Version    : 1.0
  # Connect the sensor to the A0(Analog 0) pin on the Arduino board

  # the sensor value description
  # 0  ~300     dry soil
  # 300~700     humid soil
  # 700~950     in water
*/

void setup(){

  Serial.begin(57600);

}

void loop(){

  Serial.print("Moisture Sensor Value:");
  Serial.println(analogRead(A0));
  delay(100);

}

Result

Open the Arduino Serial Monitor, and choose its baud rate 57600 as set in the code.