// Smart Street Light with Arduino

// Define pin connections
const int lightSensorPin = A0; // Light sensor connected to analog pin A0
const int motionSensorPin = 2; // Motion sensor connected to digital pin 2
const int relayPin = 13; // Relay pin connected to digital pin 13

// Define threshold values
const int lightThreshold = 600; // Adjust this value according to ambient light conditions
const int motionThreshold = 100; // Adjust this value according to sensitivity of motion sensor

void setup() {
  // Initialize serial communication
  Serial.begin(9600);

  // Set pin modes
  pinMode(lightSensorPin, INPUT);
  pinMode(motionSensorPin, INPUT);
  pinMode(relayPin, OUTPUT);

  // Initially turn off the street light
  digitalWrite(relayPin, LOW);
}

void loop() {
  // Read sensor values
  int lightLevel = analogRead(lightSensorPin);
  int motionDetected = digitalRead(motionSensorPin);

  // Print sensor values (for debugging)
  Serial.print("Light Level: ");
  Serial.println(lightLevel);
  Serial.print("Motion Detected: ");
  Serial.println(motionDetected);

  // Check conditions to turn on/off the street light
  if (lightLevel < lightThreshold || motionDetected > motionThreshold) {
    // If it's dark or motion is detected, turn on the street light
    digitalWrite(relayPin, HIGH);
  } else {
    // Otherwise, turn off the street light
    digitalWrite(relayPin, LOW);
  }

  // Delay before taking the next sensor readings
  delay(1000);
}