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Remote operated car we developed
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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.
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