You will need an arduino uno board for interfacing microcontroller with the dc motor and ultrasonic sensor along with the solar panel.
Automatic grass cutter using 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 system uses 6v batteries to power the vehicle movement motors as well as the grass cutter motor.
If you are looking for the best type of blades you will have to consider how well it can cut the grass.
The solar lawn mower is a fully automated grass cutting robotic vehicle powered by solar energy that also avoids obstacles and is capable of fully automated grass cutting without the need of any.
The ultrasonic sensor is used to detect the obstacles.