#include "esp_timer.h"

// Pin definitions
const int ledPin = 2;      // GPIO pin for LED
const int buzzerPin = 4;   // GPIO pin for Buzzer

// Timer handles
esp_timer_handle_t ledTimer;
esp_timer_handle_t buzzerTimer;

// Callback for LED timer
void ledTimerCallback(void* arg) {
  static bool ledState = false;
  ledState = !ledState;
  digitalWrite(ledPin, ledState); // Toggle LED state
  Serial.println(ledState ? "LED ON" : "LED OFF");
}

// Callback for Buzzer timer
void buzzerTimerCallback(void* arg) {
  static bool buzzerState = false;
  buzzerState = !buzzerState;
  digitalWrite(buzzerPin, buzzerState); // Toggle Buzzer state
  Serial.println(buzzerState ? "Buzzer ON" : "Buzzer OFF");
}

void setup() {
  // Initialize Serial
  Serial.begin(115200);

  // Set pin modes
  pinMode(ledPin, OUTPUT);
  pinMode(buzzerPin, OUTPUT);

  // Turn off LED and Buzzer initially
  digitalWrite(ledPin, LOW);
  digitalWrite(buzzerPin, LOW);

  // Create LED timer
  const esp_timer_create_args_t ledTimerArgs = {
    .callback = &ledTimerCallback,
    .arg = nullptr,
    .name = "LED Timer"
  };
  esp_timer_create(&ledTimerArgs, &ledTimer);
  esp_timer_start_periodic(ledTimer, 1000000); // 1 second (1,000,000 microseconds)

  // Create Buzzer timer
  const esp_timer_create_args_t buzzerTimerArgs = {
    .callback = &buzzerTimerCallback,
    .arg = nullptr,
    .name = "Buzzer Timer"
  };
  esp_timer_create(&buzzerTimerArgs, &buzzerTimer);
  esp_timer_start_periodic(buzzerTimer, 500000); // 500 milliseconds (500,000 microseconds)
}

void loop() {
  // The timers handle LED and Buzzer toggling in the background
  delay(100); // Simulating other tasks
}