Automated Solar Grass Cutter

Today the most promising source of energy where everyone focusing is the concept of Solar Power and its Utilization. Generally, we see people who had gardens use lawn mowers manually to cut the unwanted grass. Those lawn movers are powered from normal household’s power through cables or using petrol/diesel. Using cables creates messing problem and if there is any power cut, we can’t use that lawn mower. Similarly, if we use petrol/diesel powered machine, it requires money and they create pollution through the smoke. Through this project, you are going to build a unique Automatic Solar Grass Cutter (Lawn Mower) which is powered by solar energy and it will overcome all the above-mentioned problems.

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6. Solar & Smart Energy Systems

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13. Home Automation System using IoT & Raspberry Pi

14. Automation using PLC

You will need an Arduino Uno board for interfacing microcontroller with the DC motor and Ultrasonic sensor along with the solar panel. You will attach cutter blade to the DC Motor and placed it at the bottom. The Solar panel is used for getting power for the grass cutter. The ultrasonic sensor is used to detect the obstacles. You will program the microcontroller in such a way that when the robot had switched on, it will move based on the inputs given by the ultrasonic sensor. As soon as the bot started, the cutter start rotating and will chop the grass. The power for all these electronics will be taken from the Solar panel itself.

Project Description:

1. Arduino/Genuino Uno: The digital and analog input/output pins equipped in this board can be interfaced to various expansion boards and other circuits. Serial communication interface is a feature in this board, including USB which will be used to load the programs from computer.
2. Solar Panel: The devices which converts the solar energy into electric energy is called Solar Panel.
3. Ultrasonic Sensor: The Ultrasonic transducers or ultrasonic sensors are a type of acoustic sensor divided into three broad categories: transmitters, receivers and transceivers. Transmitters convert electrical signals into ultrasound, receivers convert ultrasound into electrical signals, and transceivers can both transmit and receive ultrasound. Mostly it is used to find the distance from the obstacle.
4. Motor Driver: Generally the Arduino board is not capable of providing required amount of current for running the motors. So we use a device called Motor Driver which will provide sufficient current for driving the motors.
5. Battery: Battery is a device used to store the DC power.
6. DC motors: These motors works with DC power as name indicates itself. So these motors will convert the DC Electric power in Rotating Mechanical Power.

Project Implementation:

1. Firstly, interface the Cutter, Solar panel and DC Motors with Arduino.
2. Charge the battery by placing the robot under sun light
3. Switch on the robot and Upload the code.
4. You can see your automatic Solar grass cutter working
5. The power required for movement of robot, cutting etc are directly taken from the battery.

Software requirements:

1. Arduino IDE : You will be needing Arduino IDE software to write and upload the programming logic onto the Arduino Uno board

Programming language: Arduino Programming (C++)

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• Arduino Uno
• Solar Panel
• Ultrasonic Sensor
• Motor Driver
• Battery
• DC motor

• Automation
• Obstacle Detection
• Solar Panel
• Renewable Energy

Automated Solar Grass Cutter