In this Presentation………..Requirements for the productFunctionality of the productFeatures of the productImplementation challengesProduction ProcessMarketing etc………

RequirementsThe 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.

FUNCTIONALITYOverall 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.

FUNCTIONALITYT5-434 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.

TRANSMITTER DIAGRAM

key board Computer Serial port

+12V & -12V digital signals

Max232 ICTransmitter IC

Antenna

Transmitted to the car

+5V & 0V digital signals

Radio frequency signals

7805 IC9V battery

9V power supply

5v power supply

RECEIVER DIAGRAM

Antenna Receiver IC PIC L298 IC

Forward & backward motor

Left & Right motor

Radio Signals

Digital Signals

Controlling Signals

7805 IC 6V battery

5V power supply

Receive from air

FEATURES OF “HAFNIUM IMPACT 2008”

IMPLEMENTATION CHALLENGES

• What is this?????

• How can we do this???

IMPLEMENTATION CHALLENGESFaults of the electronic componentsDifficulties faced in identifying faultsMinimizing the area occupied by circuitsFinding a suitable body for the chassisMounting all the circuits and the battery

inside the body Making the car as attractive as possible

Production ProcessA 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…….

PRODUCTION PLAN

e

Then……….

The programming part PIC programme using PIC C

Interface using VB

Finally………….

COSTINGFor the electronic components :-

Rs.700.00For the body:- Rs

125.00Packaging material and stationary:- Rs

100.00

MARKETING PLANOur 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

Special Thanks to,

1.Mr. Chulaka2.Mr. Chakshika 3.Ms. Sulochana Sooriyarachchi4.And all others who helped for a better

design.

Prepared by

1.I.S.Samarasekara - 070422H - Isira (L)2.A.W.B.Prabodani - 070372D - Buddhika3.A.U.Dissanayake - 070109F - Asanka4.D.P.Jayamanne - 070188T - Danushka5.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.