1. SUBMITTED BY :
BARATH MANOHARAN 1217549
NIBIN T KOSHY 1217541
PRANAY UDAY 1217531
Under the guidance of
JAMES SATHYA KUMAR
Associate Professor
DEPARTMENT OF MECHANICAL ENGINEERING
FACULY OF ENGINEERING,CHRIST UNIVERSITY
Kengeri-Campus,Bangalore-560074

2. Result 20
Conclusion 21
Video 22
References 23
Title Slide No.
Introduction 3
Objectives 4
Literature Survey 5-7
Flowchart For Methodologies 8
Actual Work 9
Drawing 10-13
Fabrication 14-15
Circuit Diagram 16
Arduino Programming 17-18
Working 19

3.  Mowing lawns is a labor intensive activity.
 A Robotic Lawn Mower is an autonomous robot
used to cut untrimmed grass.
 The intended controller is fully automated and
avoids obstacles in the work environment.
 The final outcome of the proposed work would
be a non-polluting, cost efficient and safe robot
lawnmower that can also be used for small scale
and large scale lawns and fields.
3

4.  To design and fabricate an automated lawn
mower which requires minimum human
supervision.
 The lawn mower is to be programmed using
the Arduino board and the Arduino IDE.
 Design is intended to be simple and effective
thereby making lawn mowing inexpensive.

5. • Dinesh Kumar,Rajesh Birua,Sarmistha Mondal, ManasKr.
Parai,Rakesh Chandra Kumar, Md. Saddam Khan, “Obstacle
Avoiding Robot – A Promising One,” International Journal of
Advanced Research in Electrical, Electronics and Instrumentation
Engineering Vol. 2, Issue 4, April 2013
 For robotic lawnmower, infrared sensors were used to detect
the obstacles on the path and then avoids the obstacle.
 IR transmitters are used to continuously generate a signal of
38KHz.
 The infrared signal gets reflected back from the object and
this generates a positive high signal informing the robot
about obstacle.
4

6. • Pratik Patil, Ashwini Bhosale, Prof. Sheetal Jagtap, “Design And
Implementation Of Automatic Lawn Cutter,” International
Journal Of Emerging Technology And Advanced Engineering ,
Volume 4, Issue 11, November 2014Options for autonomous
control of robotic platform
 This design contains a microcontroller ATmega 16, multiple
sensors, LCD display, keypad and rechargeable battery.
 The design was adapted to hydrogen by making small
adjustment to carburetor and by installing a hydrogen
reservoir containing solid state metal hydrides.
 They used an ultrasonic sensor to detect if the lawn mower
was heading into an object.
5

7. • Junho Yang, Soon-Jo Chung, Seth Hutchinson, David
Johnson, and Michio Kise, “Vision-Based Localization and
Mapping for an Autonomous Mower,” IEEE Control
Systems Volume 27,2007.
 The task of robotic mowing was divided into teaching phase
and a moving phase.
 During teaching phase the mower guesses the 3D positions of
landmarks and defines a boundary in the lawn with an
estimate of its own trajectory.
 Measurements taken from an omnidirectional camera an IMU
and a ground speed sensor are used for its estimation.
6

8. 14

9. 1. A brief study and survey on automated lawn mower has
been carried out.
2. 3-D modeling has been done using Solid Edge.
3. The frame of the platform fabricated using hollow
rectangular tube made of mild steel material.
4. Nylon wheels are attached to the 6mm motor shaft via a
holder.
5. The circuit components are attached to top of the
platform.
6. Sensors are attached to the front of the platform.
7. Cutter attached to the platform using MIG welding
techniques.
8. Microcontroller programmed using Arduino IDE.
9. A working model is finished as per requirement.

10. Fig: Components of push reel
cutter
(www.gardening.stackexchange.com)
10

11. Fig:Isometric View of Automated Lawn
Mower

12. Fig:Labelling of The Lawn Mower

13. Fig:Dimensions of ALM

14. Fig:Fabrication of Platform

15. Fig: Assembled model of cutter with platform

16. Fig: Wiring diagram of automated lawn mower

17. Fig: Coding For Initializing Arduino Pin And Controlling DC Motors

18. Fig: Coding Used For Sensors

19. Table showing wheel direction for obstacle avoidance

20.  The fabrication of an automated lawn mower
which requires minimum human supervision is
complete.
 The lawn mower functions using the arduinoboard
and is coded using the arduino IDE.
 The design is simple and effective. The lawn
mower is able to trim grass inexpensively as the
entire system is powered by a single 12V 1.2 Amp
battery.

21.  An automated lawnmower which uses minimum human
intervention is designed and developed.
 The design incorporates programming using an Arduino
controller and is programmed using Arduino IDE.
 The developed controller is simple, effective and is not power
hungry.
 3D modelling of the entire setup was carried using Solid Edge V18
software.
 The platform fabricated as per the 3D modelling and houses all
the electronic components.
 Wheels are made of nylon are attached to the 12V DC motors for
the smooth movement of the lawn mower.
16

22. MONTH WEEK OBJECTIVE
NOVEMBER 1-2 BRAINSTORMING, PROJECT TITLE
3-4 METHODOLOGY, SYNOPSIS
DECEMBER 1-2 PRESENTATION, CAD MODEL DESIGN
3-4 COMPONENT LIST, BUDGET PLANNING,
SYNOPSIS
JANUARY 1-2 DETAILED DESIGN, COMPONENT
PURCHASING
3-4 PROCUREMENT , SYNOPSIS
FEBRUARY 1-2 MANUFACTURING, ASSEMBLING
3-4 CODING & EXPERIMENTING, SYNOPSIS
MARCH 1-2 MOVEMENT TESTING,CUTTING TESTING
3-4 TRIAL RUN 1 & 2, PROJECT COMPLETION
15

24. • Dinesh Kumar,Rajesh Birua,Sarmistha Mondal, ManasKr.
Parai,Rakesh Chandra Kumar, Md. Saddam Khan, “Obstacle
Avoiding Robot – A Promising One,” International Journal of
Advanced Research in Electrical, Electronics and Instrumentation
Engineering Vol. 2, Issue 4, April 2013
 Pratik Patil, Ashwini Bhosale, Prof. Sheetal Jagtap, “Design And
Implementation Of Automatic Lawn Cutter,” International
Journal Of Emerging Technology And Advanced Engineering ,
Volume 4, Issue 11, November 2014Options for autonomous
control of robotic platform
• Junho Yang, Soon-Jo Chung, Seth Hutchinson, David Johnson,
and Michio Kise, “Vision-Based Localization and Mapping for an
Autonomous Mower,” IEEE Control Systems Volume 27,2007.
17