Smart Irrigation System

Overview

The Smart Irrigation System is an IoT-based project designed to automate and optimize the irrigation process while maintaining a suitable environment for plants. This system uses multiple sensors and actuators to monitor and control soil moisture, temperature, and humidity. It provides real-time updates through a web application and uploads data to the cloud for analytics.

Features

• Automated Irrigation:
  • Monitors soil moisture levels and activates a pump to water plants when needed.
• Environmental Control:
  • Activates a fan to cool down the environment if the temperature is too high.
  • Turns on a heater to prevent frost damage during low temperatures.
• Web Application:
  • Displays real-time status of:
    • Soil moisture percentage.
    • Temperature and humidity levels.
    • Pump Status.
• Cloud Integration:
  • Data is uploaded to ThingSpeak for historical analysis and visualization.

Technology Stack

• Hardware:
  • ESP32 (microcontroller)
  • DHT11 Sensor (temperature and humidity)
  • Soil Moisture Sensor
  • Pump, Fan, and Heater
• Software:
  • Web Application for real-time monitoring
  • ThingSpeak for cloud data analytics

Functionality

1. The system monitors environmental conditions using IoT sensors.
2. Based on predefined thresholds:
   • Activates the pump when soil moisture is below the threshold.
   • Triggers the fan to cool the surroundings if the temperature is high.
   • Turns on the heater to maintain a suitable temperature during colder conditions.
3. Displays real-time data on the web interface.
4. Uploads sensor data to ThingSpeak for advanced insights.

Installation and Setup

Hardware Setup:

1. Connect the sensors (DHT11 and soil moisture) to the ESP32 microcontroller.
2. Attach the pump, fan, and heater to their respective output pins.
3. Ensure a stable power supply for all components.

Code Setup

1. The project file contains fully commented code to help you set up the system step-by-step.
2. Follow these steps to configure the code:

Code Setup

• Open the code in the Arduino IDE or your preferred editor.
• Update the following sections in the code:
• Wi-Fi Credentials: Replace with your Wi-Fi SSID and password.
• ThingSpeak API Key: Replace with your ThingSpeak Write API key.
• Threshold Values: Adjust the thresholds for soil moisture, temperature, and humidity as per your requirements.

3. Upload Code: Connect your ESP32 to your computer and upload the code using the Arduino IDE.