This project presents a Solar Powered Robot for Smart Weed Cutter and Pesticides Spraying, designed to automate agricultural field operations through web-based monitoring and control. The system uses a Raspberry Pi Zero 2W as the main controller, interfaced with a Pi Camera and SD card for real-time video monitoring, accessible via a dedicated webpage over Wi-Fi. The robot is powered by a solar panel with a charging circuit and battery, ensuring sustainable energy use. Functional modules include a grass cutter driven by DC motors, a servo-based pesticide spraying unit, and mobility provided by dual DC motors controlled through an L293D motor driver. Relays are employed for switching operations. The system enables farmers to remotely monitor field conditions and operate the robot for weed cutting and pesticide spraying without direct human intervention. This approach not only reduces manual effort and chemical exposure but also promotes eco-friendly farming by utilizing renewable solar power and smart automation. The Raspberry Pi Zero 2W is programmed using Python, with a smart control algorithm that processes user commands from the web interface and controls the robot accordingly. By utilizing solar energy as its primary power source, the robot ensures sustainable farming while reducing operational costs. This automated system helps improve agricultural productivity by automating repetitive and hazardous tasks, significantly reducing manual labor, and optimizing time management. With its web-based remote control, farmers can manage their fields conveniently without being physically present, making this project a modern, efficient, and eco-friendly solution for smart agriculture.    

The main objectives of the project are:

• Automate weed cutting using a grass-cutting mechanism.
• Automate pesticide spraying to reduce human exposure to chemicals.
• Use solar energy for sustainable and eco-friendly operation.
• Enable remote control and monitoring through a web interface.
• Provide real-time video streaming using a Pi Camera.

    The major building blocks of this project are:

1. Solar.
2. Charging circuit.
3. Battery Power Supply.
4. LM2596.
5. Raspberry Pi Zero 2W.
6. Pi Camera.
7. DC motors with driver.
8. Grass cutter.
9. Relays.
10. Pesticide motor.
11. Servo motor.
12. LED indicators.

      Software’s used:  

1. Python language.
2. Express SCH for Circuit design.

   

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