// Include required libraries
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"

#define Blink_LED1 23
#define Blink_LED2 22
#define Blink_LED3 0

#define DELAY_TO_BE_USED 1

// Function declaration
void vBlinkLED1 (void *params);
void vBlinkLED2 (void *params);
void vBlinkLED3 (void *params);

TaskHandle_t TaskHandle_1; // handler for Task1
TaskHandle_t TaskHandle_2; // handler for Task2
TaskHandle_t TaskHandle_3; // handler for Task3


void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  Serial.println("Hello, ESP32!");

  // Configure LED pins as outputs
  pinMode(Blink_LED1, OUTPUT);
  pinMode(Blink_LED2, OUTPUT);
  pinMode(Blink_LED3, OUTPUT);

  // Create tasks
  xTaskCreate(vBlinkLED1,"Task1",20000,NULL,3,&TaskHandle_1);
  xTaskCreate(vBlinkLED2,"Task2",20000,NULL,2,&TaskHandle_2);
  xTaskCreate(vBlinkLED3,"Task3",20000,NULL,1,&TaskHandle_3);

  vTaskStartScheduler();
}

void loop() {
  // put your main code here, to run repeatedly:
  delay(10); // this speeds up the simulation
}   

// Task to blink LED1 at 1 Hz frequency, 50% duty cycle
void vBlinkLED1 (void *params)
{
  while(1)
  {
    digitalWrite(Blink_LED1, HIGH);   // turn the LED on (HIGH is the voltage level)
    Serial.println("LED1_ON\n");
    vTaskDelay(pdMS_TO_TICKS(500));  // Adjust the delay as needed  
    digitalWrite(Blink_LED1, LOW);    // turn the LED off by making the voltage LOW
    Serial.println("LED1_OFF\n");
    vTaskDelay(pdMS_TO_TICKS(500));  // Adjust the delay as needed   
  }
}

// Task to blink LED2 at 1 Hz frequency, 25% duty cycle
void vBlinkLED2 (void *params)
{
  while(1)
  {
    digitalWrite(Blink_LED2, HIGH);   // turn the LED on (HIGH is the voltage level)
    Serial.println("LED2_ON\n");
    vTaskDelay(pdMS_TO_TICKS(250));  // Adjust the delay as needed                      // wait for a second
    digitalWrite(Blink_LED2, LOW);    // turn the LED off by making the voltage LOW
     Serial.println("LED2_OFF\n");
    vTaskDelay(pdMS_TO_TICKS(750));  // Adjust the delay as needed   
  }
}

// Task to blink LED3 at 1 Hz frequency, 75% duty cycle
void vBlinkLED3 (void *params)
{
  while(1)
  {
    digitalWrite(Blink_LED3, HIGH);   // turn the LED on (HIGH is the voltage level)
    Serial.println("LED3_ON\n");
    vTaskDelay(pdMS_TO_TICKS(750));  // Adjust the delay as needed                      // wait for a second
    digitalWrite(Blink_LED3, LOW);    // turn the LED off by making the voltage LOW
    Serial.println("LED3_OFF\n");
    vTaskDelay(pdMS_TO_TICKS(250));  // Adjust the delay as needed   
  }
}