This document summarizes a project proposal for a fully automated solar-powered grass cutter. The grass cutter will be battery-powered and use solar charging. It will record a user's desired movement path and then autonomously replicate that path through AVR programming. The grass cutter will have wheels controlled by motors to move forward, backward, and turn. It will interact with a solar charging station using a microcontroller to control components like motors and power management. Potential applications include use in playgrounds, gardens, small farms, and nurseries.

1. GUIDED BY : Mr. PANKAJ CHAWLA
(HOD. ELECTRICAL DEPT. )
SUBMITTED BY : UTKARSH SHARMA K10702
PARIDHI PAMNANI K11453
SHAHINA KAGZI K10707
( BTECH , EE – 6TH SEM 3RD YR )
MAJOR
ASSIGNMENT

2. FULLY AUTOMATED SOLAR GRASS
CUTTER

3. Project Description
 Solar Operated Grass Cutter Bot
 Our project is a battery powered automatic Grass
cutter.
 Initially the user will control the Grass cutter along a
desired path and the mower will record the
movements in order to later replicate them
autonomously through AVR Programming.
 It will have a solar powered charging station that will
act as the starting and ending point of the moving
and cutting process.

4. BLOCK DIAGRAM

5. CONNECTIONS

6. Function List
 Grass Cutter will have the ability to be controlled Automatically.
 It will be able to store the desired moving path in memory
 It will have wheels that control forward and backward movement
as well as turning
 Interaction between mower, Solar station, and control unit
 Solar power to large battery to mower batteries
 Automatic shut-off if it tips over.
 Micro-controller to interact with and control other components
(motors for blades/wheels, Solar component, and power
management circuit.)

7. Possible Extra Features
• Integrated scheduling of mower.
• Disable the mower if it leaves its designated mowing
area.
• Automatic moving and turning through the 500ms
delay given.
• The regulation of AVR voltage through 7805 voltage
Regulator.

8. Feasibility
 Our members consist of three EE students.
 We have previous experience with microcontrollers
and moving of robot with sensors and motor drivers
from prior Projects.
 Sound programming experience.
 Possible outsourcing of chassis construction and
mechanical functionality

9. More In-depth Look

10. System Implementation
 AVR will be the communication protocol used by
Programming .
 Two L293D motor drivers for controlling wheels
movement and turning.
 Battery voltages will be monitored using the UPS
converters via solar plates into the microcontroller
and motor drivers.
 Switches for set and Reset of system.

11. Risks
 Mechanical issues (motor mounting, frame retrofit) –
enlist mechanical major’s help.
 Motor issues (possible magnetic interference,
excessive power consumption) – might need to shield
motors, use smaller motors and lighter frame.
 Extra supply of current more than 1.5 m amp.
 Shorting of battery and solar panel wires.
 Bot size to inherit Turning Issues.

12. APPLICATIONS
 For Playgrounds (cricket ground, football ground etc.)
 For House gardens
 For small farms
 For nurseries

13. ADVANTAGES
 Compact size and portable
 No fuel cost
 No pollution
 Easy to move from one place to another
 Less wear and tear
 Non-skilled person can also operate

14. DISADVANTAGES
 Blade failure
 Manually operated
 Difficult to operate in rainy seasons

15. THANK YOU