#define buttonP1 5  //Button1
#define buttonP2 6  //Button2
#define buttonP3 7  //Button3

#define relayR1 9     // Pump1
#define relayR2 10    //Pump2
#define relayR3 11    //Pump3


void setup() {
   Serial.begin(9600);
  // put your setup code here, to run once:
    // Activating the digital pins pull up resistors
  pinMode(buttonP1, INPUT_PULLUP);
  pinMode(buttonP2, INPUT_PULLUP);
   pinMode(buttonP3, INPUT_PULLUP);
  
  pinMode(relayR1, OUTPUT);
  pinMode(relayR2, OUTPUT);
  pinMode(relayR3, OUTPUT);
}

void loop() {
 
// if button is pressed
   //Pump1 ON
 if (digitalRead(buttonP1) == LOW) {
  delay(500);
    digitalWrite(relayR1, HIGH);
    Serial.print("P1 ON: ");
    delay(4000);
    //Pump1 Off
    digitalWrite(relayR1, LOW);
    Serial.println("P1 OFF");
  }
   else if (digitalRead(buttonP2) == LOW) {
    digitalWrite(relayR2, HIGH);
    Serial.print("P2 ON: ");
    delay(4000);

    digitalWrite(relayR2, LOW);
    Serial.println("P2 OFF");
}
   else if (digitalRead(buttonP3) == LOW) {
    digitalWrite(relayR3, HIGH);
    Serial.print("P3 ON: ");
    delay(4000);

    digitalWrite(relayR3, LOW);
    Serial.println("P3 OFF");
}
}