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	- Project: Intersection Control
	- Source Code compiled for: Arduino Uno
	- Source Code created on: 2024-02-21 08:32:29

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/****** SYSTEM REQUIREMENTS *****/
/****** SYSTEM REQUIREMENT 1 *****/
	/* - Implement a system that manages an intersection */
	/* with two traffic lights, coming from two */
	/* perpendicular roads, so as to properly manage the */
	/* movement of vehicles, realizing them through LEDs. */
	/* - Next, insert a button, for pedestrian crossing */
	/* on call: */
/****** END SYSTEM REQUIREMENTS *****/

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

/****** SYSTEM REQUIREMENTS *****/
/****** SYSTEM REQUIREMENT 1 *****/
/* - Implement a system that manages an intersection */
/* with two traffic lights, coming from two */
/* perpendicular roads, so as to properly manage the */
/* movement of vehicles, realizing them through LEDs. */
/* - Next, insert a button, for pedestrian crossing */
/* on call: */
/****** END SYSTEM REQUIREMENTS *****/

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

/***** DEFINITION OF DIGITAL INPUT PINS *****/
const uint8_t button_PushButton_PIN_D2 = 2;

/***** DEFINITION OF DIGITAL OUTPUT PINS *****/
const uint8_t l1_Red_LED_PIN_D3 = 3;
const uint8_t l2_Yellow_LED_PIN_D4 = 4;
const uint8_t l3_Green_LED_PIN_D5 = 5;

/***** DEFINITION OF OUTPUT RAW VARIABLES *****/
/***** used to store raw data *****/
bool l1_Red_LED_PIN_D3_rawData = 0;
bool l2_Yellow_LED_PIN_D4_rawData = 0;
bool l3_Green_LED_PIN_D5_rawData = 0;

/****** DEFINITION OF LIBRARIES CLASS INSTANCES *****/
// Instance of the button.
EasyButton button(button_PushButton_PIN_D2);

void setup(void)
{
    pinMode(button_PushButton_PIN_D2, INPUT_PULLUP);

    pinMode(l1_Red_LED_PIN_D3, OUTPUT);
    pinMode(l2_Yellow_LED_PIN_D4, OUTPUT);
    pinMode(l3_Green_LED_PIN_D5, OUTPUT);

    // Initialize the button.
    button.begin();
}

void loop(void)
{
    updateOutputs(); // Refresh output data
    button.read();  // Read button status

    // Check if button is pressed and perform actions
    if (button.isPressed())
    {
        // Perform actions when button is pressed
        // This is where you can implement the pedestrian crossing logic
        l1_Red_LED_PIN_D3_rawData = 1;
        l2_Yellow_LED_PIN_D4_rawData = 1;
        l3_Green_LED_PIN_D5_rawData = 0;
    }
    else
    {
        // Default traffic light behavior
        l1_Red_LED_PIN_D3_rawData = 0;
        l2_Yellow_LED_PIN_D4_rawData = 0;
        l3_Green_LED_PIN_D5_rawData = 1;
    }

    // Delay for stability
    delay(100);
}

void updateOutputs()
{
    digitalWrite(l1_Red_LED_PIN_D3, l1_Red_LED_PIN_D3_rawData);
    digitalWrite(l2_Yellow_LED_PIN_D4, l2_Yellow_LED_PIN_D4_rawData);
    digitalWrite(l3_Green_LED_PIN_D5, l3_Green_LED_PIN_D5_rawData);
}