This document describes a project to design a robot using an Arduino board that is controlled by voice commands from an Android device. The objectives are to build a low-cost robot with an Android app interface. The system architecture involves using a microphone on the Android device to recognize voice commands, which are sent via Bluetooth to the Arduino board. The Arduino board controls motors to move the robot in the directions corresponding to the voice commands. The project implements this design and tests voice recognition and robot control. Results show the feasibility of controlling physical objects with just voice commands.

1. VISVESVARAYA TECHNOLOGICAL UNIVERSITY
Department of Computer Science & Engineering
Project Presentation on
DESIGN OF A ROBOT USING ARDUINO
Presented By
G N Meghana – 1ST19CS035
Poornima K – 1ST19CS093
Sulu Padma Kumar – 1ST19CS135
Sahana V – 1ST19CS117
Under the Guidance of
Dr. K. Balakrishnan
Associate Professor
Dept. of CSE

2. CONTENTS
Introduction
Problem Statement
Objectives and Scope
Design and Analysis
System Architecture
Flow Diagram
Implementation
Results
Execution of the project

3. INTRODUCTION
It makes sense to look at ways to leverage the Arduino to
build robots. The robot base is simple to build and can be
constructed out of a variety of materials; no special tools
are required.
You can also take the concepts presented here and design
your own version of the ArdBot bigger or smaller, wheels
or tracks your choice.

4. PROBLEM STATEMENT
• Objective show that it is indeed possible for a user to learn to effectively manipulate
real world objects with only verbal voice as a control mechanism.
• The proposed results provide strong evidence that the further development of voice-
controlled robotics will be successful.
• This system would find wide variety of applications. Mainly systems such as household
appliances like washing machines microwave ovens etc. will become voice controlled
in future.
• In such case this research will work out practically satisfying the need of the day
efficiently.

5. OBJECTIVES AND SCOPE
 The main objective is to construct the android guided Arduino Car by extracting the powers of
both the open source technologies- Android and Arduino Programming.
 To develop an android application that will provide user an interface to interact with the Arduino
powered car.
 To produce Arduino car that is controlled by android phone remote which can be used in various
fields, like defence, scientific expeditions and so on.
 The remote in this project is android device which has an inbuilt Bluetooth module.
 Physical barriers like doors, walls, etc. do not effect in controlling the car.

6. DESIGN AND ANALYSIS

7. SYSTEM ARCHITECTURE
• In this proposed device we perform a variety of research on control style variants
for robots. It shows that it’s feasible to study to successfully manipulate actual
world objects with solely voice (human voice) as a control mechanism.
• The reason of this lookup is to provide simple robotic hardware architecture so
that this shape can focal point on Bluetooth connection infrastructure. It is also
beneficial for academic robotics due to the fact human beings can construct their
personal robots with low cost.
• When the app is operating in the system, a microphone on the mobile is used to
identify user voice commands.
• Commands are interpreted and the program utilizes Google's speech-recognition
software to translate voice to text within the app. The text will then be sent with
the aid of Bluetooth to the receiver part.

8. • The MCU will operate at 16MHz clock speed. The digital Arduino I / O pins 3, 4, 5 and 6 are
programmed as output pins in this design.
• For serial communication with the Bluetooth unit, pins 0 and 1 of Arduino are used. Text
obtained with the aid of Bluetooth is forwarded to Arduino Nano microcontroller panel by the
usage of UART serial conversation protocol.
• The voice commands to the robotic device are dispatched via Bluetooth with the aid of an
Android device.
• These commands are received on the robotic device by using Bluetooth module set up on it.
• The motor driver circuit is used to manipulate the velocity of the car. The complete circuitry is
powered by the usage of a 12V rechargeable battery hooked up on the system.
SYSTEM ARCHITECTURE

9. FLOW DIAGRAM

10. IMPLEMENTATION
Step 1: Design overall structure and components of robotic car and assemble the hardware
components of robotic car based on the designed structure.
Step 2: Write the code for arduino board to control movement of robotic car.
Step 3: Develop a set of voice commands such as forward, backward, left, right, stop
Step 4: Test the voice recognition module.
Step 5: Conduct experiment to evaluate the performance.
Step 6: Analyze the results of experiment and identify the limitations and challenges.

11. RESULTS
Experimenting on rough
terrains
Final result

12. EXECUTION OF THE PROJECT