The Robotic Sensing and Controlling of Green House are an advanced smart-farming system designed to automate essential greenhouse operations while offering wireless manual control. The robot integrates key environmental sensors—including a DHT11 temperature and humidity sensor, soil moisture sensor, MQ-135 CO₂ sensor, and an LDR sensor—to continuously monitor internal greenhouse conditions. An Arduino UNO microcontroller processes this data and automatically activates various mechanisms to maintain ideal growing conditions. A major feature of the system is its automatic greenhouse door control: the servo motor adjusts the door position based on light intensity detected by the LDR sensor, ensuring proper ventilation and sunlight exposure. The robot is also equipped with DC motors for movement, driven by an L293D motor driver, enabling it to navigate. A relay-controlled water motor automates irrigation whenever soil moisture falls below a threshold. Bluetooth connectivity allows the user to control the robot wirelessly using an Android smartphone, enabling manual navigation, monitoring, and override of automatic functions. Powered by a dedicated supply and battery backup, the system ensures reliable operation. By combining mobility, automation, and wireless control, this robot provides an efficient, low-cost, and intelligent solution for greenhouse management, improving crop growth, reducing labor, and supporting modern precision agriculture.  

The major features of this project are:

• To design and develop a robotic system capable of monitoring key greenhouse parameters.
• To automatically regulate greenhouse conditions for optimal plant growth.
• Specific Objectives
• To measure temperature, humidity, soil moisture, CO₂ concentration, and light intensity using integrated sensors.
• To automatically open/close the greenhouse door using a servo motor based on sunlight intensity.
• To activate a water pump via relay when soil moisture falls below a threshold.
• To enable manual robot control through Bluetooth and Android application.
• To ensure mobility using DC motors controlled via an L293D motor driver.
• To provide a reliable and low-cost greenhouse automation solution.

    The major building blocks of this project are:

• Rechargeable Battery.
• Arduino UNO Microcontroller.
• DHT11(Humidity Sensor& Temperature) Sensor.
• Soil moisture sensor.
• CO2 sensor.
• LDR sensor.
• Servo motor.
• Bluetooth module.
• L293d driver with DC motors.
• Relay With Water motor.
• HC-05 Bluetooth.

    Software’s used:

• Embedded C programming.
• Arduino IDE programmer for dumping code into Micro controller.
• Express SCH for Circuit design.

  Block diagram:

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