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BW.ino
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BW.ino
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#define lmotorf 9
#define lmotorb 8
#define rmotorf 10
#define rmotorb 11
//HIGH white
//LOW black
void setup() {
pinMode(lmotorf,OUTPUT);
pinMode(rmotorf,OUTPUT);
pinMode(lmotorb,OUTPUT);
pinMode(rmotorb,OUTPUT);
pinMode(6,INPUT);
pinMode(7,INPUT);
}
void loop() {
// dynamic line follower code
// if the sensor is on white it returns LOW value to the Arduino
// if it is on black it returns a HIGH value to the Arduino
int lsensor=digitalRead(6);
int rsensor=digitalRead(7);
if((lsensor==LOW)&&(rsensor==LOW))
{
//both sensors on white
// go forward
digitalWrite(lmotorf,HIGH);
digitalWrite(rmotorf,HIGH);
digitalWrite(lmotorb,LOW);
digitalWrite(rmotorb,LOW);
}
else if((lsensor==LOW)&& (rsensor==HIGH))
{
//right sensor on black line
// turn right
digitalWrite(lmotorf,HIGH);
digitalWrite(rmotorf,LOW);
digitalWrite(lmotorb,LOW);
digitalWrite(rmotorb,HIGH);
}
else if((lsensor==HIGH)&&(rsensor==LOW))
{
//left sensor on black line
// turn left
digitalWrite(lmotorf,LOW);
digitalWrite(rmotorf,HIGH);
digitalWrite(lmotorb,HIGH);
digitalWrite(rmotorb,LOW);
}
else
{
digitalWrite(lmotorf,LOW);
digitalWrite(rmotorf,LOW);
digitalWrite(lmotorb,LOW);
digitalWrite(rmotorb,LOW);
}
}