//#define BLYNK_AUTH_TOKEN "yHEjjiF4wgxBORfqLPJh1ccyd5ykP41x"

#define BLYNK_TEMPLATE_ID "TMPL3F524eG-K"
#define BLYNK_TEMPLATE_NAME "IotT Traffic unfinished"


#define BLYNK_PRINT Serial


#include <WiFi.h>
#include <WiFiClient.h>
#include <BlynkSimpleEsp32.h>

int redPin = 27;
int greenPin = 14;
int yellowPin = 12;

// Define ultrasonic sensor pins
int trigPin = 18;
int echoPin = 5;

// Define pedestrian button pin
int buzzerButtonPin = 19;
int irPin = 17;



void setup() {
  pinMode(redPin, OUTPUT);
  pinMode(greenPin, OUTPUT);
  pinMode(yellowPin, OUTPUT);

  // Set ultrasonic sensor pins
  pinMode(trigPin, OUTPUT);
  pinMode(echoPin, INPUT);

  // Set pedestrian button pin as INPUT with internal pull-up resistor
  pinMode(buzzerButtonPin, INPUT);
  pinMode(irPin, OUTPUT);
  Serial.begin(115200);
  Blynk.begin(BLYNK_AUTH_TOKEN, ssid, pass);
}

void loop() {

int distance = measureDistance();

  // Print distance to Serial Monitor
  Serial.print("Distance: ");
  Serial.print(distance);
  Serial.println(" cm");

  int distance = measureDistance();

  // Print distance to Serial Monitor
  Serial.print("Distance: ");
  Serial.print(distance);
  Serial.println(" cm");

    // Measure the time taken for the pulse to return
  int duration = pulseIn(echoPin, HIGH);

  // Calculate distance based on the speed of sound
  return duration * 0.034 / 2;  // Distance in centimeters
}

void showRedLight() {
  // Set RGB LED to red
  digitalWrite(redPin, HIGH);
  digitalWrite(greenPin, LOW);
  digitalWrite(yellowPin, LOW);
  delay(5000);  // 5 seconds
}

void showGreenLight() {
  // Set RGB LED to green
  digitalWrite(redPin, LOW);
  digitalWrite(greenPin, HIGH);
  digitalWrite(yellowPin, LOW);
  delay(5000);  // 5 seconds
}