#define BLYNK_TEMPLATE_ID "TMPL3OGv5r1fI"
#define BLYNK_TEMPLATE_NAME "SWCMS""

#define TRIG_PIN 9
#define ECHO_PIN 10
#define LED_PIN 13
#define BUZZER_PIN 11 // Define the buzzer pin
#define BIN_FULL_LEVEL 50  // Set bin full level in centimeters

#define BLYNK_TEMPLATE_ID "TMPL3OGv5r1fI"
#define BLYNK_TEMPLATE_NAME "SWCMS"
#define BLYNK_AUTH_TOKEN "pSz5ILNaFCNBSkKjLukjy5wYhLvjZuA2"


void setup() {
  Serial.begin(9600);
  pinMode(TRIG_PIN, OUTPUT);
  pinMode(ECHO_PIN, INPUT);
  pinMode(LED_PIN, OUTPUT);
  pinMode(BUZZER_PIN, OUTPUT);
  digitalWrite(LED_PIN, LOW);  // Turn off the LED initially
  digitalWrite(BUZZER_PIN, LOW); // Turn off the buzzer initially
}


void loop() {
  long duration, level, distance;
  digitalWrite(TRIG_PIN, LOW);
  delayMicroseconds(2);
  digitalWrite(TRIG_PIN, HIGH);
  delayMicroseconds(10);
  digitalWrite(TRIG_PIN, LOW);
  duration = pulseIn(ECHO_PIN, HIGH);
  distance = (duration * 0.034) / 2;  // Convert to cm
  level = BIN_FULL_LEVEL - distance - 1;
  if (distance > BIN_FULL_LEVEL) {

     tone(BUZZER_PIN, 500);
    delay(1000);
    noTone(BUZZER_PIN);
    Serial.println("Bin is Full");
    digitalWrite(LED_PIN, HIGH);  // Turn on the LED
    digitalWrite(BUZZER_PIN, HIGH); // Turn on the buzzer
  } else {
    Serial.print("Bin Level: ");
    Serial.print(level);
    Serial.println(" cm");
    digitalWrite(LED_PIN, LOW);  // Turn off the LED
    digitalWrite(BUZZER_PIN, LOW); // Turn off the buzzer
  }
  delay(1000);  // Wait for 1 second before next reading
}