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	- Project: LED Control
	- Source Code NOT compiled for: ESP32 DevKit V1
	- Source Code created on: 2024-09-14 16:50:18

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/****** SYSTEM REQUIREMENTS *****/
/****** SYSTEM REQUIREMENT 1 *****/
	/* Implement a simple LED control system using a push */
	/* button connected to digital pin D4, utilizing the */
	/* EasyButton library for debouncing and state */
	/* management. The system should toggle the LED state */
	/* on button press. */
/****** END SYSTEM REQUIREMENTS *****/

/****** DEFINITION OF LIBRARIES *****/
#include 	// https://github.com/evert-arias/EasyButton

/****** FUNCTION PROTOTYPES *****/
void setup(void);
void loop(void);

/***** DEFINITION OF DIGITAL INPUT PINS *****/
const uint8_t Switch_PushButton_PIN_D4 = 4; // Pin for the push button
const uint8_t LED_PIN = 2; // Pin for the LED

/****** DEFINITION OF LIBRARIES CLASS INSTANCES *****/
// Create an instance of the EasyButton class for the push button
// The constructor takes the pin number as an argument
EasyButton button(Switch_PushButton_PIN_D4);

/****** CALLBACK FUNCTION PROTOTYPES *****/
// Function to be called when the button is pressed
void onPressed(void);

/****** SETUP FUNCTION *****/
void setup(void)
{
    // Initialize Serial for debugging purposes
    Serial.begin(115200);
    Serial.println();
    Serial.println(">>> EasyButton LED Control Example <<<");

    // Initialize the button
    button.begin();
    
    // Initialize the LED pin as output
    pinMode(LED_PIN, OUTPUT);
    digitalWrite(LED_PIN, LOW); // Start with LED off

    // Add the callback function to be called when the button is pressed
    button.onPressed(onPressed);
}

/****** LOOP FUNCTION *****/
void loop(void)
{
    // Continuously read the status of the button
    button.read();
}

/****** CALLBACK FUNCTION IMPLEMENTATION *****/
// Function that gets called when the button is pressed
void onPressed(void)
{
    // Toggle the LED state
    static bool ledState = LOW; // Variable to hold the current state of the LED
    ledState = !ledState; // Toggle the state
    digitalWrite(LED_PIN, ledState); // Update the LED state
    Serial.println(ledState ? "LED is ON" : "LED is OFF"); // Print the current state
}

/* END CODE */