The core of the system is the Arduino Nano microcontroller, which controls all operations. An HC-05 Bluetooth module enables wireless communication between an Android mobile device and the robot, allowing the user to control movement directions and spraying functions remotely. The L293D motor driver controls the DC motors for robot navigation, while a relay driver is used to operate the seed blower mechanism. Additionally, a servo motor is employed for lid opening and closing, ensuring controlled seed dispensing.

This project reduces manual labor, improves precision in seed distribution, and promotes sustainable farming practices by utilizing solar energy. It is cost-effective, user-friendly, and suitable for small- and medium-scale agricultural applications.

The main objectives of the project are:

  To design a solar-powered system that operates without dependence on conventional electricity.

  To develop a wireless control mechanism using a Bluetooth module for easy operation through an Android mobile.

  To implement an Arduino Nano-based control system for efficient coordination of all components.

  To control the movement of the robot (forward, backward, left, right) using DC motors.

  To design an automatic seed spraying mechanism using a blower system for uniform distribution.

  To incorporate a relay driver circuit for controlling high-power devices like the seed blower.

  To use a servo motor mechanism for controlled opening and closing of the seed container lid.

  To reduce manual labor and human effort in agricultural seed spraying processes.

  To ensure precision and uniformity in seed distribution.

  To promote eco-friendly and sustainable farming using renewable energy sources.

The major building blocks of this project are:

• Arduino NANO Microcontroller.
• Solar panel.
• Charging circuit.
• Rechargeable Battery.
• DC Motors Along with L293d Driver.
• HC-05 Bluetooth.
• Relay with seed blower.
• Servo Motor.

Software’s used:

1. Embedded C programming.
2. Arduino IDE for dumping code into Micro controller.
3. Express SCH for Circuit design.
4. Bluetooth application.

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