Water _Level.ino

#include <LiquidCrystal.h>
LiquidCrystal lcd(12,11,5,4,3,2);
#define lenght 16.0

unsigned int peace;
unsigned char b;
int count=0;
int aft=1;
int buz = 6;
int motor = 7;  //motor switch
int trigPin = 8;    //Trig - green Jumper
int echoPin = 9;    //Echo - yellow Jumper
int duration, cm, inches;
//------------     //Two Function 
void buzLow();
void buzFull();
//------------   
byte p1[8] = {
  0x10,
  0x10,
  0x10,
  0x10,
  0x10,
  0x10,
  0x10,
  0x10};
byte p2[8] = {
  0x18,
  0x18,
  0x18,
  0x18,
  0x18,
  0x18,
  0x18,
  0x18};
byte p3[8] = {
  0x1C,
  0x1C,
  0x1C,
  0x1C,
  0x1C,
  0x1C,
  0x1C,
  0x1C};
byte p4[8] = {
  0x1E,
  0x1E,
  0x1E,
  0x1E,
  0x1E,
  0x1E,
  0x1E,
  0x1E};
byte p5[8] = {
  0x1F,
  0x1F,
  0x1F,
  0x1F,
  0x1F,
  0x1F,
  0x1F,
  0x1F};

void setup() {
  //Serial Port begin
  Serial.begin (9600);
  //Define inputs and outputs
  pinMode(trigPin, OUTPUT);
  pinMode(echoPin, INPUT);
  pinMode(motor, OUTPUT);
  pinMode(buz, OUTPUT); 
   
  lcd.createChar(0, p1);
  lcd.createChar(1, p2);
  lcd.createChar(2, p3);
  lcd.createChar(3, p4);
  lcd.createChar(4, p5);
  
  lcd.begin(16, 2);
}
 
void loop()
{
  delayMicroseconds(5);   //Sensor
  digitalWrite(trigPin, HIGH);
  delayMicroseconds(10);
  digitalWrite(trigPin, LOW);
  duration = pulseIn(echoPin, HIGH);
  cm = (duration/2) / 29.1;  // convert the time into a distance 
  int perc = ((100.-cm)/100.)*100.;     //percentage
  
  lcd.setCursor(0, 0);   //lcd
  lcd.print(perc);

  lcd.setCursor(2, 0);
  lcd.print('%');


  lcd.setCursor(0, 1);
  double a=lenght/100*perc;
  // drawing black rectangles on LCD
   if (a>=1)
   {
     for (int i=1;i<a;i++) 
     {
      lcd.write(4);
      b=i;
     }
   a=a-b;
   }
   peace=a*5;
  
   switch (peace) 
   {
   case 0:
     break;
   case 1:
     lcd.print((char)0);
    break;
   case 2:
     lcd.write(1);
    break;
   case 3:
     lcd.write(2);
    break;
   case 4: 
      lcd.write(3);
    break;    
   
}
//clear 
for (int i =0;i<(lenght-b);i++) 
{
  lcd.print(" ");
}
;

//Motor On
if (perc< 15)
{
  
  digitalWrite(motor, HIGH);
  lcd.setCursor(13, 0);
  lcd.print("on");
  
    while(count<=5)  
  {
    buzLow();
    count++;
  }
  
}
//motor off
 if(perc> 80)
{
  lcd.setCursor(13, 0);
  lcd.print("off");
  digitalWrite(motor, LOW);
  
   while(a<=5)  
  {
    buzFull();
    a++;
  }
}
}
 ////// 
void buzLow()
{
  digitalWrite(buz, HIGH);
  delay(500);
  digitalWrite(buz, LOW);
  delay(500);
}
void buzFull()
{
  digitalWrite(buz, HIGH);
  delay(500);
  digitalWrite(buz, LOW);
  delay(500);
   
}