#define BLYNK_TEMPLATE_ID "TMPL6ImzkiZup"
#define BLYNK_TEMPLATE_NAME "EPS32 with 2 LED and Servo and Buzzer"
#define BLYNK_AUTH_TOKEN "odd7I1TGPy2Cr0Wrd_Up6xW37Xr-jSZQ"

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

char auth[] = BLYNK_AUTH_TOKEN ; // Your Blynk Auth Token
char ssid[] = "Wokwi-GUEST"; // Your WiFi SSID
char pass[] = ""; // Your WiFi Password

#define RED_LED_PIN 12 // Pin for the red LED
#define BLUE_LED_PIN 13 // Pin for the blue LED
#define BUZZER_PIN 14 // Pin for the buzzer
#define SERVO_PIN 15 // Pin for the servo motor

BlynkTimer timer;

int buzzerFrequency = 1000; // Initial frequency for the buzzer
int servoPosition = 0; // Initial position for the servo

bool servoState = false;
bool ledState = false;
bool buzzerState = false;
bool servoButtonState = false;

unsigned long previousMillis = 0;
const long interval = 30000; // Interval for LED blinking and buzzer (30 seconds)

void setup() {
  Serial.begin(9600);
  Blynk.begin(auth, ssid, pass);
  
  pinMode(RED_LED_PIN, OUTPUT);
  pinMode(BLUE_LED_PIN, OUTPUT);
  pinMode(BUZZER_PIN, OUTPUT);
}

void loop() {
  Blynk.run();
  timer.run();
  
  unsigned long currentMillis = millis();
  
  // Control servo motor
  if (servoState) {
    moveServo(90); // Move servo to 90 degrees
  } else {
    moveServo(0); // Move servo to 0 degrees
  }

  // Control LED blinking
  if (servoButtonState && (currentMillis - previousMillis >= interval)) {
    previousMillis = currentMillis;
    if (ledState) {
      digitalWrite(RED_LED_PIN, LOW);
      digitalWrite(BLUE_LED_PIN, LOW);
      ledState = false;
    } else {
      digitalWrite(RED_LED_PIN, HIGH);
      digitalWrite(BLUE_LED_PIN, HIGH);
      ledState = true;
    }
  }
  
  // Control buzzer
  if (servoButtonState && (currentMillis - previousMillis >= interval)) {
    if (buzzerState) {
      tone(BUZZER_PIN, buzzerFrequency); // Turn on buzzer with frequency
    } else {
      noTone(BUZZER_PIN); // Turn off buzzer
    }
    buzzerState = !buzzerState; // Toggle buzzer state
    delay(100); // Wait for buzzer to complete tone
  }
}

void moveServo(int angle) {
  ledcSetup(0, 50, 16); // Configure LED Controller
  ledcAttachPin(SERVO_PIN, 0); // Attach servo pin to LED Controller
  
  int dutyCycle = map(angle, 0, 180, 1000, 2000); // Map angle to duty cycle
  ledcWrite(0, dutyCycle); // Write duty cycle to servo pin
}

// Handler for the servo button in Blynk app
BLYNK_WRITE(V1) {
  servoButtonState = param.asInt(); // Get servo button state (0 or 1)
}

// Handler for the red LED button in Blynk app
BLYNK_WRITE(V2) {
  int redLedState = param.asInt();
  digitalWrite(RED_LED_PIN, redLedState);
}

// Handler for the blue LED button in Blynk app
BLYNK_WRITE(V3) {
  int blueLedState = param.asInt();
  digitalWrite(BLUE_LED_PIN, blueLedState);
}