Abstract: The smart grass cutter system puts forth a completely automated lawn mower mechanism. The robotic vehicle is
equipped with a grass cutter blade that allows for grass cutting at high RPM. The system has a smart functionality that allows
it to cover the complete area of a lawn or garden by detecting corners using ultrasonic sensor and moving in a zigzag manner
in order to cover the entire area. This efficient system uses a Micro-controller based circuit in order to achieve this
functionality. It is a battery operated system that uses 2 batteries. One battery is used to run the vehicle movement DC motors
and the other one is used to power the grass cutter motor. Also the system uses a solar panel to demonstrate the charging of
vehicle movement battery. The Micro-controller operates the vehicle movement dc motors as well as the grass cutter at the
same time as monitoring the ultrasonic sensors. The micro-controller smartly operates the dc motors using the motor driver
IC to achieve desired movement based on ultrasonic inputs. The system also uses a gyro sensor in order to achieve perfect 180
degree turns in order to achieve complete lawn/garden coverage. Thus we conclude that it consumes non-renewable sources
of energy like petrol, diesel gasoline. It is one form of pollution free and electricity is saved, we use solar energy which is
renewable source of energy and reduces human efforts
Keyword: Ultrasonic sensor, DC motor, Gyroscope sensor and Micro-controller.