Line Follower

SRJT08203

Jyoti,a classmate of jugaadu,is preparing an automatic tray.the use of the tray is that it will automatically move on the the derired path.jyoti wants to use it in her family function such that it will reduce the number of waiters serving the food. She has asked jugaadu for help.Can you help jugaadu to make this tray?

Motor Driver IC
2 IR sensors
Bread board
Arduino UNO UNO
12V Battery
DIY Chassis Kit
Jumper Cables
Screw Driver
Soldering Iron
Glue gun
Battery Connector
USB Cable

With the help of IR sensor we can make a line follower robot and we can make lines by black tape in the house.


    int mr1=7;
int mr2=6;
int ml1=8;
int ml2=9;
int l=10;
int r=11;
int irl=3;
int irr=4;

void setup() {
// put your setup code here, to run once:
pinMode(mr1,OUTPUT);
pinMode(mr2,OUTPUT);
pinMode(r,OUTPUT);
pinMode(ml1,OUTPUT);
pinMode(ml2,OUTPUT);
pinMode(l,OUTPUT);
pinMode(irr,INPUT);
pinMode(irl,INPUT);
Serial.begin(9600);
}

void loop() {
analogWrite(l,100);
analogWrite(r,60);
if(digitalRead(irr)==1 && digitalRead(irl)==1){
digitalWrite(mr1,1);
digitalWrite(mr2,0);
digitalWrite(ml1,1);
digitalWrite(ml2,0);
}else if(digitalRead(irr)==1 && digitalRead(irl)==0){
digitalWrite(mr1,0);
digitalWrite(mr2,1);
digitalWrite(ml1,1);
digitalWrite(ml2,0);
}else if(digitalRead(irr)==0 && digitalRead(irl)==1){
digitalWrite(mr1,1);
digitalWrite(mr2,0);
digitalWrite(ml1,0);
digitalWrite(ml2,1);
}else{
digitalWrite(mr1,0);
digitalWrite(mr2,0);
digitalWrite(ml1,0);
digitalWrite(ml2,0);
}
}