#include <stdio.h>
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "driver/gpio.h"

const int buttonPin = 5; 
// const int buttonPin2 = 5;  
// const int buttonPin3 = 18;  
// const int buttonPin4 = 19;  // Change this to the pin you are using for the button
const int dacChannel = 0; // Change this to the pin you are using for the button
 // DAC channel to use
const int toneFrequency = 1000;  // Frequency of the tone (Hz)
 
TaskHandle_t buttonTaskHandle = NULL;
const int buzzerPin = 13;      // Replace with your actual pin number
 
void buzzerTask(void *parameter) {
  for (;;) {
    if (digitalRead(buttonPin) == LOW) {
     
      digitalWrite(buzzerPin, HIGH);  // Turn the buzzer on
      delay(1000); 
       tone(buzzerPin,440,1000);
      delay(1000); // Adjust the delay time as needed
      digitalWrite(buzzerPin, LOW);   // Turn the buzzer off
    }
    vTaskDelay(10 / portTICK_PERIOD_MS);  // Delay to avoid busy-waiting
  }
}
 
void buttonTask(void* parameter) {
  while (1) {
    if (digitalRead(buttonPin) == LOW) {
       
      // Button is pressed, generate a tone
      dacWrite(dacChannel, 2047);  // Set DAC to a value for the desired tone
      delay(100);  // Adjust the duration of the tone as needed
      dacWrite(dacChannel, 0);  // Turn off the tone
    }
    vTaskDelay(10 / portTICK_PERIOD_MS);  // Adjust the delay as needed
  }
}
 
void setup() {
  pinMode(buttonPin, INPUT_PULLUP); 
  pinMode(buzzerPin, OUTPUT); // Use INPUT_PULLUP to enable the internal pull-up resistor
 
  // Initialize the DAC
  dacWrite(dacChannel, 0); // Start with 0 output
 
  xTaskCreate(buttonTask, "ButtonTask", 1000, NULL, 1, &buttonTaskHandle);

  vTaskStartScheduler();  // Start FreeRTOS
}
void loop(){}