CROP PROTECTION AND WATERING SYSTEM

The Crop Protection and Watering System project is designed to optimize irrigation and protect crops using an Arduino-based setup. This project leverages sensors to monitor soil moisture and detect rainfall, automating the watering process to ensure crops receive the right amount of water.

Functionality:

• The system continuously monitors soil moisture levels.
• When the soil is dry, the Arduino activates the water pump to irrigate the crops.
• If the rain drop sensor detects rainfall, the system halts watering to avoid overwatering.
• This automation ensures efficient water usage and provides crops with consistent hydration, improving crop health and yield.

Components and Connections:

Components Required:

1. Arduino
2. Soil Sensor
3. Rain Drop Sensor
4. Water Pump
5. Jumper Wires [Male to Male X8, Male to Female X3]
6. Single channel Relay

1. Soil Moisture Sensor:
   • VCC to 5V
   • GND to GND
   • A0 to A0
2. Raindrop Sensor:
   • VCC to 5V
   • GND to GND
   • Digital Output to D2
3. Water Pump (controlled by a relay):
   • Relay VCC to 5V
   • Relay GND to GND
   • Relay IN to D3
   • Water pump VCC and GND through the relay
4. Servo Motor:
   • VCC to 5V
   • GND to GND
   • Signal to D9

#include <Servo.h>

// Define pin connections
const int soilMoisturePin = A3;
const int rainDropPin = A0 ;
const int waterPumpPin = 3 ;
const int servoPin = 2;

// Define threshold values
const int dryThreshold = 600;  // Adjust this value based on your soil moisture sensor readings
const int rainThreshold = 500; // Adjust this value based on your raindrop sensor readings

Servo myServo;

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

  // Initialize pin modes
  pinMode(waterPumpPin, OUTPUT);
  myServo.attach(servoPin);
  myServo.write(0);  // Ensure servo starts at 0 degrees
}

void loop() {
  // Read sensor values
  int soilMoistureValue = analogRead(soilMoisturePin);
  int rainDropValue = analogRead(rainDropPin);

  // Print sensor values for debugging
  Serial.print("Soil Moisture: ");
  Serial.println(soilMoistureValue);
  Serial.print("Rain Drop: ");
  Serial.println(rainDropValue);

  // Determine soil and rain conditions
  bool isSoilDry = soilMoistureValue > dryThreshold;
  bool isRaining = rainDropValue > rainThreshold;

  if (isRaining) {
    if (isSoilDry) {
      digitalWrite(waterPumpPin, LOW); // Turn off water pump
    } else {
      myServo.write(90); // Move servo to 90 degrees
    }
  } else {
    if (isSoilDry) {
      digitalWrite(waterPumpPin, HIGH); // Turn on water pump
    } else {
      digitalWrite(waterPumpPin, LOW);  // Turn off water pump
      myServo.write(0); // Move servo back to 0 degrees
    }
  }

  // Small delay for stability
  delay(1000);
}