Yes I can

ContentsIntroductionBlock DiagramWorking AdvantagesApplicationsConclusion

IntroductionNow-a-days transportation has become great

difficulty to the individual to reach the destination on time, every one are having their own vehicle.

And the people with all body parts are fortunate but when it comes to physically challenged people it’s very unfortunate that the people with partially disabled with hands can’t drive vehicle with the help of steering.

In the Buses or Trains they are provided with minimum reservation and which will be very disappointing and they also don’t dare to buy a vehicle and assist with a driver which will cost a lot .

So this project will be a great solution for them.

Block Diagram

ROM - 8K bytesRAM - 256 bytesTimer - 3I/O pins - 32Serial port - 1Interrupt sources - 8

Features of AT89S52

PIN DIAGRAM1234567891011121314151617181920

4039383736353433323130292827262524232221

P1.0P1.1P1.2P1.3P1.4P1.5P1.6P1.7RST

(RXD)P3.0(TXD)P3.1

(T0)P3.4(T1)P3.5

XTAL2XTAL1

GND

(INT0)P3.2(INT1)P3.3

(RD)P3.7(WR)P3.6

VccP0.0(AD0)P0.1(AD1)P0.2(AD2)P0.3(AD3)P0.4(AD4)P0.5(AD5)P0.6(AD6)P0.7(AD7)EA/VPPALE/PROGPSENP2.7(A15)P2.6(A14)P2.5(A13)P2.4(A12)P2.3(A11)P2.2(A10)P2.1(A9)P2.0(A8)

AT89S52

H-BridgeFeatures Include :600 mA

Output Current Capability Per Driver

Pulsed Current 1.2 A / DriverWide Supply Voltage Range: 4.5

V to 36 VSeparate Input-Logic SupplyNE Package Designed for Heat

SinkingThermal Shutdown & Internal

ESD ProtectionHigh-Noise-Immunity Inputs

DC Geared MotorTechnical Specifications:• 60RPM 12V DC motors with Metal Gearbox• 25000 RPM base motor• 6mm shaft diameter• Gearbox diameter 37 mm.• Motor Diameter 28.5 mm• Length 63 mm without shaft• Shaft length 15mm• 300gm weight• 38kgcm torque• No-load current = 800 mA(Max), Load current =

upto 9.5 A(Max)

Lead Acid BatterySpecifications12V 1.3Ah sealed lead acid battery 

1. CE and RoHs 2. high quality and relaibility 3. miantenance free 4. long life cycle

12V 1.3Ah sealed lead acid battery

General Features:Sealed and maintenance free operation.Non-Spillable construction design.ABS containers and covers(UL94HB, UL94-

0)optional.Safety valve installation for explosion proof.High quality and high reliability.Exceptional deep discharge recovery

performance.Low self discharge characteristic.

Working

The person who is driving car will be equipped with a device which is placed around the neck of the person who is driving the car which is helpful to move the steering forward and reverse direction without any physical or mental stress .

The project uses 2 geared motors of 60RPM to drive the prototype of car.

Also this car can take sharp turnings towards left and right directions.

This project uses AT89S52 MCU as its controller. We are also using four switches in the circuit which

will be ON when the person will move neck forward and backward.

This project uses 12V Lead Acid battery which drives two DC motors with the help of H-Bridge Circuit.

AdvantagesThe physically handicap Person(hands disable) can

drive the car as usual as normal personNo need to assist by driver it will save money Low costReliable Even normal person can drive a car .

ApplicationsPhysically Handicapped people can drive car.

ConclusionThe project” Design and implementation of car

driving controller system for physically handicapped” is designed, implemented and tested successfully , which is boon for PH Peoples. Who can expect the same comfortable and luxurious life as normal people.