Automatic Bottle Filling Arduino Program

Circuit Diagram:-

Program:-

int IR=5;       //Connect IR out pin to Arduino digital pin 5
int pump=11;     // If pump is on then motor is  and viceversa

void setup() {
                          // put your setup code here, to run once:
  Serial.begin(9600);
  pinMode(IR,INPUT);      // set IR (5th pin as input pin)
  pinMode(pump,OUTPUT);   // set pump (11th pin as Output pin)
}

void loop() {
                              // put your main code here, to run repeatedly:
  digitalWrite(pump,low);    // now pump is on condition (and motor is off condition)   
  if (IR < 500)               // when bottle sense by IR the value reduced lesser than 500 
  {
    delay(70);                // after 0.07 seconsd
    digitalWrite(pump,high);   // pump turn on (and motor turn off)

    delay(7000);              // now 7 seconsd bottle will fill (you can change delay as you required)
    
    digitalWrite(pump,low);  // Now pump turns off (and motor turns on)
    delay(3000);              // let 3 seconsd to pass the bottle from the IR sensing point
  }
  else
  {
    digitalWrite(pump,low);  // if bottle is not sensed the motor is contineous to run and pump is off
  }                           // these process constinue 

}