Remote operated car we developed

2. In this Presentation………..
Requirements for the product
Functionality of the product
Features of the product
Implementation challenges
Production Process
Marketing etc………

3. Requirements
The main requirement of the project is to design a
remotely operated toy car.
The design should be economical and marketable.
The car should be operated from a distance place by a
computer viewing the road from a wireless camera.
The car should be worked on with the given RF
modules T5-434 and R5-434.
The heart 0f the car should be a Microcontroller IC
PIC 16F877A.

4. FUNCTIONALITY
Overall Functionality
The operational input is fed from the keyboard of the
computer.
The Visual Basic program in the computer outputs
the ASCII value of the input from the Serial Port.
MAX232 IC circuit converts the logical voltage levels
of the serial port into 5V and 0V voltage logical levels
which are the inputs of the transmitter circuit.

5. FUNCTIONALITY
T5-434 IC transmits ASCII values of each keystroke.
R5-434 receiver IC in the vehicle receives radio signals
from the T5-434.
Receiver IC outputs an electrical signal of the ASCII
code to the PIC circuit.
PIC16F877A recognizes the ASCII code and send
direction controlling signals and speed controlling
signals(PWM) to motors via a H-bridge. (Half of a
L298 IC)
L298 circuit supply power to motors according to
inputs.

6. TRANSMITTER DIAGRAM
+12V & -12V digital +5V & 0V digital Radio frequency signals
signals signals
Transmitter IC
key board Computer Serial port Max232 IC Antenna
Transmitted to the
car
5v power supply
9V battery 7805 IC
9V power supply

7. RECEIVER DIAGRAM
Digital Controlling
Receive from Radio Signals Signals Signals Forward & backward
air motor
Antenna Receiver IC PIC L298 IC
Left & Right motor
5V power supply
7805 IC 6V battery

8. FEATURES OF “HAFNIUM IMPACT
2008”

9. IMPLEMENTATION CHALLENGES
• What is this?????
• How can we do this???

10. IMPLEMENTATION CHALLENGES
Faults of the electronic components
Difficulties faced in identifying faults
Minimizing the area occupied by circuits
Finding a suitable body for the chassis
Mounting all the circuits and the battery inside the
body
Making the car as attractive as possible

11. Production Process
A lot of new things. So it’s the time for team work.
Every team member specialized in different areas. A
deadline was also given to make the process more
efficient.
 After about a week we met our mentor for further
clarifications
Then the real production started…….

12. PRODUCTION PLAN

14. e

15. Then……….
The programming part
 PIC programme using PIC C
 Interface using VB

16. Finally………….

18. COSTING
For the electronic components :- Rs.700.00
For the body:- Rs 125.00
Packaging material and stationary:- Rs 100.00

19. MARKETING PLAN
Our main target in marketing this product is…….
children.
• Not only as a toy. But for other purposes too…..
 Why should someone buy this product?
Price is affordable
 Attractive appearance

20. Special Thanks to,
1. Mr. Chulaka
2. Mr. Chakshika
3. Ms. Sulochana Sooriyarachchi
4. And all others who helped for a better design.

21. Prepared by
1. I.S.Samarasekara - 070422H - Isira (L)
2. A.W.B.Prabodani - 070372D - Buddhika
3. A.U.Dissanayake - 070109F - Asanka
4. D.P.Jayamanne - 070188T - Danushka
5. M.W.Edirisooriya - 070115U - Maninda
The following project is done for the module Formula
CSE , Department of Computer Science and
Engineering, Faculty of Engineering, University of
Moratuwa, Sri Lanka.