//program code for Street light fault monitor system

#include <WiFi.h>
#include "ThingSpeak.h"
#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 23
  
int ldr1 = 19;
int ldr2 = 18;
int ldr3 = 15;

// Wi-Fi credentials
const char* ssid = "Wokwi-GUEST";        // Replace with your Wi-Fi SSID
const char* password = ""; // Replace with your Wi-Fi password
WiFiClient client;
const char* server = "api.thingspeak.com";

// ThingSpeak credentials
unsigned long myChannelNumber = 2713475;   // Replace with your ThingSpeak channel number
const char* myWriteAPIKey = "7MC65PG54VDEHESU"; // Replace with your ThingSpeak Write API Key

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


  
// Connect to Wi-Fi
 
  WiFi.begin(ssid, password);
  while (WiFi.status() != WL_CONNECTED) 
  {
    delay(1000);
    Serial.println("Connecting to WiFi...");
  }
  Serial.println("Connected to WiFi");
  WiFi.mode(WIFI_STA);
  // Initialize ThingSpeak
  ThingSpeak.begin(client);

}
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);

    // set the fields with the values
    ThingSpeak.setField(1,  data1);
    ThingSpeak.setField(2,  data2);
    ThingSpeak.setField(3,  data3);
    int responseCode = ThingSpeak.writeFields(myChannelNumber, myWriteAPIKey);
    if (responseCode == 200) 
    {
    Serial.println("Data sent to ThingSpeak successfully");
    } else 
    {
    Serial.println("Error sending data to ThingSpeak: " + String(responseCode));
    }
    delay(20000);  // Send data every 20 seconds*/
  }
  else
  {
  Serial.println("light 1 & 2 fault");
  lcd.setCursor(2, 3);
  lcd.print("Light 1 & 2 Fault");
  digitalWrite(BUZZER, HIGH);
  // set the fields with the values
    ThingSpeak.setField(1,  data1);
    ThingSpeak.setField(2,  data2);
    int responseCode = ThingSpeak.writeFields(myChannelNumber, myWriteAPIKey);
    if (responseCode == 200) 
    {
    Serial.println("Data sent to ThingSpeak successfully");
    } 
    else 
    {
    Serial.println("Error sending data to ThingSpeak: " + String(responseCode));
    }
    delay(20000);  // Send data every 20 seconds*/
  }
}
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);
    // set the fields with the values
    ThingSpeak.setField(1,  data1);
    ThingSpeak.setField(2,  data2);
    ThingSpeak.setField(3,  data3);
    int responseCode = ThingSpeak.writeFields(myChannelNumber, myWriteAPIKey);
    if (responseCode == 200) 
    {
    Serial.println("Data sent to ThingSpeak successfully");
    } else 
    {
    Serial.println("Error sending data to ThingSpeak: " + String(responseCode));
    }
    delay(20000);  // Send data every 20 seconds*/
  }
  else
  {
  Serial.println("light 2 & 3 fault");
  lcd.setCursor(2, 3);
  lcd.print("Light 2 & 3 Fault");
  digitalWrite(BUZZER, HIGH);
  // set the fields with the values
    ThingSpeak.setField(2,  data2);
    ThingSpeak.setField(3,  data3);
    int responseCode = ThingSpeak.writeFields(myChannelNumber, myWriteAPIKey);
    if (responseCode == 200) 
    {
    Serial.println("Data sent to ThingSpeak successfully");
    } else 
    {
    Serial.println("Error sending data to ThingSpeak: " + String(responseCode));
    }
    delay(20000);  // Send data every 20 seconds*/
  }
}
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);
    // set the fields with the values
    ThingSpeak.setField(1,  data1);
    ThingSpeak.setField(2,  data2);
    ThingSpeak.setField(3,  data3);
    int responseCode = ThingSpeak.writeFields(myChannelNumber, myWriteAPIKey);
    if (responseCode == 200) 
    {
    Serial.println("Data sent to ThingSpeak successfully");
    } else 
    {
    Serial.println("Error sending data to ThingSpeak: " + String(responseCode));
    }
    delay(20000);  // Send data every 20 seconds*/
  }
  else
  {
  Serial.println("light 1 & 3 fault");
  lcd.setCursor(2, 3);
  lcd.print("Light 1 & 3 Fault");
  digitalWrite(BUZZER, HIGH);
  // set the fields with the values
    ThingSpeak.setField(1,  data3);
    ThingSpeak.setField(3,  data3);
    int responseCode = ThingSpeak.writeFields(myChannelNumber, myWriteAPIKey);
    if (responseCode == 200) 
    {
    Serial.println("Data sent to ThingSpeak successfully");
    } else 
    {
    Serial.println("Error sending data to ThingSpeak: " + String(responseCode));
    }
    delay(20000);  // Send data every 20 seconds*/
  }
}
else if(data1>1000)
  {
  Serial.println("Light 1 Fault");
  lcd.setCursor(3, 3);
  lcd.print("Light 1 Fault");
  digitalWrite(BUZZER, HIGH);
  // set the fields with the values
    ThingSpeak.setField(1, data1);
    int responseCode = ThingSpeak.writeFields(myChannelNumber, myWriteAPIKey);
    if (responseCode == 200) 
    {
    Serial.println("Data sent to ThingSpeak successfully");
    } else 
    {
    Serial.println("Error sending data to ThingSpeak: " + String(responseCode));
    }
    delay(20000);  // Send data every 20 seconds*/
}
else if (data2>1000)
{
  Serial.println("Light 2 Fault");
  lcd.setCursor(3, 3);
  lcd.print("Light 2 Fault");
  digitalWrite(BUZZER, HIGH);
  // set the fields with the values
    ThingSpeak.setField(2, data2);
    int responseCode = ThingSpeak.writeFields(myChannelNumber, myWriteAPIKey);
    if (responseCode == 200) 
    {
    Serial.println("Data sent to ThingSpeak successfully");
    } else 
    {
    Serial.println("Error sending data to ThingSpeak: " + String(responseCode));
    }
    delay(20000);  // Send data every 20 seconds*/
}
else if (data3>1000){
  Serial.println("Light 3 Fault");
  lcd.setCursor(3, 3);
  lcd.print("Light 3 Fault");
  digitalWrite(BUZZER, HIGH);
  // set the fields with the values
    ThingSpeak.setField(3, data3);
    int responseCode = ThingSpeak.writeFields(myChannelNumber, myWriteAPIKey);
    if (responseCode == 200) 
    {
    Serial.println("Data sent to ThingSpeak successfully");
    } else 
    {
    Serial.println("Error sending data to ThingSpeak: " + String(responseCode));
    }
    delay(20000);  // Send data every 20 seconds*/
}
else
{
  Serial.println("NO Fault");
  lcd.setCursor(2, 3);
  lcd.print("No Fault ocuured");
  digitalWrite(BUZZER, LOW);
  // set the fields with the values
    ThingSpeak.setField(1,  data1);
    ThingSpeak.setField(2,  data2);
    ThingSpeak.setField(3,  data3);
    int responseCode = ThingSpeak.writeFields(myChannelNumber, myWriteAPIKey);
    if (responseCode == 200) 
    {
    Serial.println("Data sent to ThingSpeak successfully");
    } else 
    {
    Serial.println("Error sending data to ThingSpeak: " + String(responseCode));
    }
    delay(20000);  // Send data every 20 seconds*/
}
delay(6000);

}