1. Mobile Robot
Student: Tyrone Verburgt

2. Objective The objectives of this presentation are:
Overview of Project and objectives of project
Robot system and Subsystems.
Operation of robot, camera to mobile, etc.
Project Management
Mobile Robot Project

3. Introduction
The project is based on a robot that can read from its surrounding such as temperature, pressure and attitude and collects image data.
The robot additionally collects data on its power reserves. The Robot is mobile and is controlled by either a script on the web via Wi-Fi and HTTP protocols or via an Android application via Bluetooth.
Mobile Robot Project

4. System Overview
The robot system is made of many parts which are listed below.
Microcontroller
Bluetooth Module
Wi-Fi Module
H-bridge
Barometer
Voltage regulator
Mobile Robot Project

5. System Overview
Mobile Robot Project

6. Sub-systems ATMega328-PU 8 bit AVR Microcontroller Digital I/O: 23
8 Analogue Pins
Operating Voltage: 1.8~5 V
5 PWM pins
1 UART interface
Mobile Robot Project

7. DTR (Data Terminal Ready)
Sub-systems
USB-TTL Serial Adapter (CH340G CH340)
Pins
DTR (Data Terminal Ready)
RXD (Receive Data)
TXD (Transmit Data)
VC (Power Supply)
CTS
GND (Ground)
Used to interface ATmega328-PU with PC via USB
Cheap
Found nearly anywhere online, Ebay or Amazon
Uses UART interface
Hack of RS233
Mobile Robot Project

8. Sub-systems
H-Bridge
Used to reverse the polarity of current or voltage Composed of 4 switched that control the direction of current
Mobile Robot Project

9. Sub-systems H-Bridge Condition 1 Condition 2
Current runs through Q2 and Q3
Current runs through Q1 and Q4
Mobile Robot Project

10. Sub-systems H-Bridge Two BC327 PNP transistors
Two BC337 NPN transistors
Four Rectifiers
Four 1 k
Mobile Robot Project

11. Sub-systems Pressure and Temperature Sensor (BMP085)
Pins
VCC
GND
EOC
XCLR
SCL
SDA
Uses I2C communication
Outputs Pressure (Pa)
Outputs Temperature (C)
Pressure and Temperature can be used to calculate altitude.
Mobile Robot Project

12. Sub-systems JPEG Camera (LS-Y201 Infrared Camera) Daytime Night-time
Default resolution: 640x480 (VGA)
Use UART communication Interface
Additionally takes picture in infra-red
Operation done using defined HEX commands provide by Manufacturer
Mobile Robot Project

13. Sub-systems Wi-Fi Adapter (ESP8266) Uses TCP or UDP
Pins
VCC
3.3 V
GND
Ground
TXD
Transmit Pin
RXD
Receive Pin
CH_PD
Chip Power Down
GPIO0
General Purpose I/O 0
GPIO2
General Purpose I/O 2
RST
Reset
Uses TCP or UDP
Uses AT commands to establish connection
Provides a System on Circuit (SOC)
Two GPIO pins
Current: 400~600 mA
UART communication interface
Mobile Robot Project

14. Sub-systems Webpage (HTML, PHP & MySQL)
Receives and sends data via the HTTP protocol
Robot uses GET command
PHP dynamically updates webpages table
MySQL database stores received data in a table
Mobile Robot Project

15. Sub-systems Webpage (HTML, PHP & MySQL) www.tixgy.com/DITrobot.php
Mobile Robot Project

16. Sub-systems Bluetooth Adapter (JY-MCU) Provide UART interface
Pins
Description 1
Key 2
VCC (3.6-6V) 3
GND 4
TXD (3.3 V) 5
RXD (3.3 V)
Provide UART interface
Ultra High Frequency (UHF) (2.4 GHz)
Used AT commands
Range: 10 meters
Mobile Robot Project

17. Sub-systems Bluetooth Application
Used to establish Bluetooth connection with robot
To send and receive data to and from robot
Mobile Robot Project

18. Sub-systems Bluetooth Application
Application consists of three threads
Threads are created because of blocking methods
Mobile Robot Project

19. System operation System Operation with Mobile Phone
Mobile Robot Project

20. System operation
System Operation with Wi-Fi
Mobile Robot Project

21. Project Management Work Breakdown Structure
Work Breakdown Structure showing the major task and subtasks
Mobile Robot Project

22. Project Management Gantt Chart
Gantt Chart showing the milestones their tasks
Mobile Robot Project

23. Project Management
Mobile Robot Project

24. Discussion and issues Power Issues
Project Management (planning, time & task management)
Linear Programming issue
Mobile Robot Project

25. Recommendations Project Management (time constraints) No improvements
Mobile Robot Project

26. Conclusion Success Professional Development as an Engineer
Mobile Robot Project