19185829 Line Follower Using 89s52

8/14/2019 19185829 Line Follower Using 89s52

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SL NO CONTENT

1. AIM OF THE PROJECT

2. DESIRED SPECIFICATION

3. APPERATUS

4. BLOCK DIAGRAM

5. CIRCUIT DIAGRAM

6. WORKING OF ROBOT

7. COMPONENT

8. APPLICATIONS

9. LIMITATIONS & EXTENTIONS


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To make a robot which can follow a black stripTo make a robot which can follow a black strip

on a white floor and a black strip on a white floor .on a white floor and a black strip on a white floor .


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SL .NOMETERIALREQUIRED

DESCRIPTION QUANTITY

1 AT89S52 MICROCONTROLLER 1

2 LM358 DUAL OP-AMP 1

3 L293D MOTOR DRIVER 1

6 7432 OR IC 1

7 DESIGNED PCB 1

8 DC MOTOR METAL GEARED 2

9 INFRARED LED TRANSMITTER(SENSOR) 2

10 PHOTODIODE RECEIVER(SENSOR) 2


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It comprises of making the robot follow aIt comprises of making the robot follow acolor contrasting strip(ie black on whitecolor contrasting strip(ie black on white

and white on black). This was done using aand white on black). This was done using acomparator circuit using the IR leds whosecomparator circuit using the IR leds whosetransmitted light is being used intransmitted light is being used ingeneration of signals in photodiodegeneration of signals in photodiode

This is based on the phenomenon that theThis is based on the phenomenon that the

status of signals generated by photodiodestatus of signals generated by photodiodechange when it deviated from its pathchange when it deviated from its path


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The comparator circuits were used forThe comparator circuits were used forthe signal generated from photodiodes.the signal generated from photodiodes.The intensity of light from the IR ledThe intensity of light from the IR ledshould be adequate for the currentshould be adequate for the currentgenerationgeneration

the two ends of IR-receiver werethe two ends of IR-receiver wereconnected to ground and positiveconnected to ground and positiveterminal of the comparator .terminal of the comparator .

The output of these two were ORed andThe output of these two were ORed andgiven to a mono-stable 555 timergiven to a mono-stable 555 timer


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The robot can be used as a guider to guide thevisitors from the entrance .

It can help doctors to carry the medicines .

It can rescue the people by extinguishing fire incase of rescue missions.

It can work in hazardous environments.

It can be used in a nuclear power plant in case ofany leakage


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In the present condition it canfollow a single path way and not acrisscross one.

the robot could not be run throughthe batteries because at someconditions the current requirement

for the circuit rises to about .8Awhich is very high and can not beobtained using batteries.


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Automated cars running on roads withembedded magnets

Guidance system for industrial robotsmoving on shop floor etc.


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19185829 Line Follower Using 89s52