#include <LiquidCrystal.h>

// Define the pins for the LDRs
const int LDR1_Pin = A0;
const int LDR2_Pin = A3;
const int LDR3_Pin = A5;

// Define the pins for the LED indicators
const int LED1_Pin = 6;
const int LED2_Pin = 7;
const int LED3_Pin = 8;

// Define the threshold values for fault detection
const int threshold = 500; // Adjust this value based on ambient light conditions

// Initialize the LCD library
LiquidCrystal lcd(12, 11, 5, 4, 3, 2);

void setup() {
  // Set up the LCD's number of columns and rows:
    lcd.begin(16, 2);
      
        // Print a message to the LCD.
          lcd.print("Street Lights:");
            
              // Set LED pins as outputs
                pinMode(LED1_Pin, OUTPUT);
                  pinMode(LED2_Pin, OUTPUT);
                    pinMode(LED3_Pin, OUTPUT);
                    }

                    void loop() {
                      // Read analog values from LDRs
                        int LDR1_value = analogRead(LDR1_Pin);
                          int LDR2_value = analogRead(LDR2_Pin);
                            int LDR3_value = analogRead(LDR3_Pin);
                              
                                // Check if each LDR reading is below the threshold
                                  bool LDR1_fault = LDR1_value < threshold;
                                    bool LDR2_fault = LDR2_value < threshold;
                                      bool LDR3_fault = LDR3_value < threshold;
                                        
                                          // Display status on LCD
                                            lcd.setCursor(0, 1);
                                              lcd.print("L1:");
                                                lcd.print(LDR1_fault ? "F " : "G ");
                                                  
                                                    lcd.setCursor(6, 1);
                                                      lcd.print("L2:");
                                                        lcd.print(LDR2_fault ? "F " : "G ");
                                                          
                                                            lcd.setCursor(12, 1);
                                                              lcd.print("L3:");
                                                                lcd.print(LDR3_fault ? "F " : "G ");
                                                                  
                                                                    // Turn on respective LED indicators for faults
                                                                      digitalWrite(LED1_Pin, LDR1_fault ? HIGH : LOW);
                                                                        digitalWrite(LED2_Pin, LDR2_fault ? HIGH : LOW);
                                                                          digitalWrite(LED3_Pin, LDR3_fault ? HIGH : LOW);
                                                                            
                                                                              delay(1000); // Adjust delay as needed
                                                                              }