#include <LiquidCrystal_I2C.h>
#include <Servo.h>


LiquidCrystal_I2C lcd(0x27,20,4);  // set the LCD address to 0x27 for a 16 chars and 2 line display

Servo myservo;  // create servo object to control a servo
int button=6;
int startbutton=5;
int buttoncond=0;
int startbuttoncond=0;
int water = A0;
int buzzer = 7;  // analog pin used to connect the potentiometer
int val;
int buttonstate=0;
int x=0;
int watererror=100;
void setup() {
  pinMode(button, INPUT_PULLUP);
  pinMode(startbutton, INPUT_PULLUP);
  Serial.begin(9600);
  pinMode(buzzer, OUTPUT);
  


  myservo.attach(9);
  myservo.write(0);
  
  startinglcd();
  }



void loop() {

  x=test();

  Serial.println(x);
    delay(2000);
    digitalRead(startbutton);


if(x==0){
startmotor(100,1);// you can start motor with minimum of 15 to work stable due to the delay of motor moving 15ms between each pitch
}
else if(x==1){
startmotor(20,1);//the first number is for delay between each movement and second number for the number of repeating the movement
}
else{
startmotor(5,1);}
x=0;
}

void startmotor(int delayspeed,int numberofcud){


  for (int i=1;i<=numberofcud;i++){  
  
  for (int loop1=0;loop1<=180;loop1++){
  myservo.write(loop1);
  delay(delayspeed);
  
Serial.println(analogRead(A0));
if(analogRead(A0)>watererror){
digitalWrite(buzzer,HIGH);
break;
}else{
digitalWrite(buzzer,LOW);
}        
  }

  for (int loop1=180;loop1>=0;loop1--){
  myservo.write(loop1);
  delay(delayspeed);

Serial.println(analogRead(A0));
if(analogRead(A0)>watererror){
digitalWrite(buzzer,HIGH);
break;
}else{
digitalWrite(buzzer,LOW);
}

  }
  
  Serial.println(analogRead(A0));
if(analogRead(A0)>watererror){
digitalWrite(buzzer,HIGH);
break;
}else{
digitalWrite(buzzer,LOW);
}
  
  }


}

void startinglcd(){
  
  lcd.init();                      // initialize the lcd 
  lcd.backlight();
  lcd.setCursor(5,0);
  lcd.print("w");
  delay(100);
  lcd.setCursor(6,0);
  lcd.print("e");
  lcd.setCursor(7,0);
  lcd.print("l");
  delay(100);
  lcd.setCursor(8,0);
  lcd.print("c");
  delay(100);
  lcd.setCursor(9,0);
  lcd.print("o");
  delay(100);
  lcd.setCursor(10,0);
  lcd.print("m");
  delay(100);
  lcd.setCursor(11,0);
  lcd.print("e");
  delay(500);

  lcd.setCursor(1+2,1);
  lcd.print("c");
  delay(20);
  lcd.setCursor(2+2,1);
  lcd.print("u");
  delay(20);
  lcd.setCursor(3+2,1);
  lcd.print("d");
  delay(20);
  lcd.setCursor(4+2,1);
  lcd.print("d");
  delay(20);
  lcd.setCursor(5+2,1);
  lcd.print("l");
  delay(20);
  lcd.setCursor(6+2,1);
  lcd.print("e");
  delay(20);
  lcd.setCursor(7+2,1);
  lcd.print("r");
  delay(1000);
  
  lcd.setCursor(9+2,1);
  lcd.print("V1");
  delay(1000);
  lcd.setCursor(9+2,1);
  lcd.print("  ");
  delay(1000);
  lcd.setCursor(9+2,1);
  lcd.print("V1");
  delay(1000);
  lcd.setCursor(9+2,1);
  lcd.print("  ");
  delay(1000);
  lcd.setCursor(9+2,1);
  lcd.print("V1");
  delay(1000);
  delay(2000);// attaches the servo on pin 9 to the servo object
lcd.clear();
}

int test(){
  buttonstate=0;
  lcd.clear();
  lcd.print("      Slow");
  delay(100);
  
          lcd.setCursor(0,1);
  lcd.print("speed      start");

  startbuttoncond=digitalRead(startbutton);
  buttoncond=digitalRead(button);
  while(startbuttoncond==1){
    buttoncond=digitalRead(button);
    
    while(buttoncond==1){  
      startbuttoncond=digitalRead(startbutton);
      if(startbuttoncond==0){
        break;
      }
      buttoncond=digitalRead(button);
      if(buttoncond==0){
        buttonstate++;
        if (buttonstate==1){
          lcd.clear();
  lcd.print("     medium");
  delay(100);
  
          lcd.setCursor(0,1);
  lcd.print("speed      start");

        }
        if (buttonstate==2){
          
          lcd.clear();
  lcd.print("      fast");
  delay(100);
  
          lcd.setCursor(0,1);
  lcd.print("speed      start");
        }
        if (buttonstate>2){
          buttonstate=0;
          
  lcd.clear();
  lcd.print("      Slow");
  delay(100);
  
          lcd.setCursor(0,1);
  lcd.print("speed      start");

  }
        break;
      }

    }
if(startbuttoncond==0){
        
        return buttonstate;
      }

    // while(buttoncond==0){  
    //   buttoncond=digitalRead(button);
    //   Serial.println(buttoncond);
    // }
    // buttonstate++;
    // if (buttonstate>2){
    //   buttonstate=0;
    // }

      Serial.print("buttonstate=");
      Serial.println(buttonstate);
// delay(1000);
      Serial.print("buttoncond=");
      Serial.println(buttoncond);
    startbuttoncond=digitalRead(startbutton);
    Serial.println("inside start button");

  }

}