This project introduces the design of a wireless sensor network to monitor temperature, moisture, and soil humidity of a greenhouse in real time. To optimize the parameters and use of water, an automated control system is built for handling these microclimate parameters. The advanced sensor node handles the sensor information and causes the actuators based on the programmed microcontroller's (Arduino-based) with a threshold algorithm. In this proposed system monitor the plant water level, Temperature, humidity and light into the mobile application through Esp8266 WI-FI. The main controlling device of the project is Arduino UNO microcontroller which loaded program written in embedded C language. Arduino will continuously monitor the sensor data and based on that it will switch on the appropriate device through relay and upload the sensor data into the WEB application through Esp8266 Wi-Fi module. Here relay works as a switch to ON/OFF the light and water motor.  

The major objectives of this project are:

• To design a DHT11 sensor-based system for accurate temperature and humidity monitoring.
• To implement a soil moisture detection system using a soil sensor for real-time soil condition measurement.
• To integrate IoT technology to send temperature, humidity, soil moisture, and light data to a WEB application.
• To develop an LDR-based automatic light control system for efficient illumination management.
• To control an exhaust fan automatically based on temperature and humidity levels using the DHT11 sensor.
• To operate a water pump automatically based on soil moisture readings for smart irrigation.
• To provide visible alerts and sensor readings using an LCD display.
• To achieve complete system integration and control using an Arduino Uno microcontroller.

    The major building blocks of this project are:

• Soil Moisture Sensor.
• Humidity Sensor& Temperature Sensor.
• Light Dependent Resistor (LDR).
• Arduino Uno.
• Power Supply Circuit.
• LCD Display.
• Esp8266Wi-fi Module.
• Fans, Bulbs, Water Pump, Relays.

  Software’s used:

• Embedded C program.
• ARDUINO IDE studio.

         

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