//program code for Street light fault monitor system

#include <LiquidCrystal_I2C.h>
#define I2C_ADDR    0x27
#define LCD_COLUMNS 20
#define LCD_LINES   4

LiquidCrystal_I2C lcd(I2C_ADDR, LCD_COLUMNS, LCD_LINES);

//LiquidCrystal_I2C lcd(0x27, 20, 4);

#define BUZZER 16
  
int ldr1 = 25;
int ldr2 = 26;
int ldr3 = 27;

void setup() {
lcd.init();
lcd.backlight();
pinMode(ldr1, INPUT);
pinMode(ldr2, INPUT);
pinMode(ldr3, INPUT);
pinMode(BUZZER, OUTPUT);
Serial.begin(115200);

}

void loop() {

int data1 = analogRead(ldr1);
Serial.println("ldr1 value=" +String(data1));

int data2 = analogRead(ldr2);
Serial.println("ldr2 value=" +String(data2));

int data3 = analogRead(ldr3);
Serial.println("ldr3 value=" +String(data3));
lcd.clear();
lcd.setCursor(1, 0);
lcd.print("Street Light Fault");
lcd.setCursor(1, 1);
lcd.print("Detection Project");


if(data1 > 1000 && data2 > 1000){
  if(data3 > 1000){
    Serial.println("All light are fault");
    lcd.setCursor(0, 3);
    lcd.print("All Lights are Fault");
    digitalWrite(BUZZER, HIGH);
  }else{
  Serial.println("light 1 & 2 fault");
  lcd.setCursor(2, 3);
  lcd.print("Light 1 & 2 Fault");
  digitalWrite(BUZZER, HIGH);
  }
}
else if(data2 >1000 && data3 >1000){
  if(data1 >1000){
    Serial.println("All light are fault");
    lcd.setCursor(0, 3);
    lcd.print("All Lights are Fault");
    digitalWrite(BUZZER, HIGH);
  }else{
  Serial.println("light 2 & 3 fault");
  lcd.setCursor(2, 3);
  lcd.print("Light 2 & 3 Fault");
  digitalWrite(BUZZER, HIGH);
}
}
else if(data3 >1000 && data1 >1000){
  if(data2 >1000){
    Serial.println("All light are fault");
    lcd.setCursor(0, 3);
    lcd.print("All Lights are Fault");
    digitalWrite(BUZZER, HIGH);
  }else{
  Serial.println("light 1 & 3 fault");
  lcd.setCursor(2, 3);
  lcd.print("Light 1 & 3 Fault");
  digitalWrite(BUZZER, HIGH);
}
}
else if(data1 >1000)
  {
  Serial.println("Light 1 Fault");
  lcd.setCursor(3, 3);
  lcd.print("Light 1 Fault");
  digitalWrite(BUZZER, HIGH);
}
else if (data2 >1000){
  Serial.println("Light 2 Fault");
  lcd.setCursor(3, 3);
  lcd.print("Light 2 Fault");
  digitalWrite(BUZZER, HIGH);
}
else if (data3 >1000){
  Serial.println("Light 3 Fault");
  lcd.setCursor(3, 3);
  lcd.print("Light 3 Fault");
  digitalWrite(BUZZER, HIGH);
}
else{
  Serial.println("NO Fault");
  lcd.setCursor(2, 3);
  lcd.print("No Fault ocuured");
  digitalWrite(BUZZER, LOW);
}
delay(6000);
}