Automatic Door Opener using IR Sensor and Arduino

Demonstration of Automatic Door Opener using IR Sensor and Arduino is made by DVD disk drive
Reference by circuitdigest....
code:
#define doorsensor A0
#define m1 0
#define m2 1
void setup()
{
pinMode(m1, OUTPUT);
pinMode(m2, OUTPUT);
pinMode(doorsensor, INPUT);
delay(3000);
}
void loop()
{
if(digitalRead(doorsensor))
{
digitalWrite(m1, HIGH); // gate opening
digitalWrite(m2, LOW);
delay(350);
digitalWrite(m1, LOW); // gate stop for a while
digitalWrite(m2, LOW);
delay(5000);
digitalWrite(m1, LOW); // gate closing
digitalWrite(m2, HIGH);
delay(350);
digitalWrite(m1, LOW); // gate closed
digitalWrite(m2, LOW);
delay(1000);
}
else
{
digitalWrite(m1, LOW);
digitalWrite(m2, LOW);
}
}