"Traffic Toggle" rev_02

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    - Project: "Traffic Toggle"
    - Source Code NOT compiled for: Arduino Uno
    - Source Code created on: 2024-06-08 13:52:57

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/****** SYSTEM REQUIREMENTS *****/
/****** SYSTEM REQUIREMENT 1 *****/
    /* Develop a car and pedestrian traffic light */
    /* simulation with EasyButton. Utilize pin D2 for */
    /* button input, and pins D3, D4, D5, and D6 for LED */
    /* outputs. Ensure LEDs change states correctly in */
    /* the loop function, reflecting typical traffic */
    /* light behavior. */
/****** END SYSTEM REQUIREMENTS *****/

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

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

/***** DEFINITION OF DIGITAL INPUT PINS *****/
const uint8_t Button_PushButton_PIN_D2 = 2;

/***** DEFINITION OF DIGITAL OUTPUT PINS *****/
const uint8_t Red_LED_PIN_D3 = 3;
const uint8_t Green_LED_PIN_D4 = 4;
const uint8_t Red_LED_PIN_D5 = 5;
const uint8_t Green_LED_PIN_D6 = 6;

/***** DEFINITION OF OUTPUT RAW VARIABLES *****/
/***** used to store raw data *****/
bool Red_LED_PIN_D3_rawData = 0;
bool Green_LED_PIN_D4_rawData = 0;
bool Red_LED_PIN_D5_rawData = 0;
bool Green_LED_PIN_D6_rawData = 0;

/***** DEFINITION OF OUTPUT PHYSICAL VARIABLES *****/
/***** used to store data after characteristic curve transformation *****/
float Red_LED_PIN_D3_phyData = 0.0;
float Green_LED_PIN_D4_phyData = 0.0;
float Red_LED_PIN_D5_phyData = 0.0;
float Green_LED_PIN_D6_phyData = 0.0;

/****** DEFINITION OF LIBRARIES CLASS INSTANCES*****/
EasyButton button(Button_PushButton_PIN_D2); // Initialize EasyButton object with the button pin

/****** TRAFFIC LIGHT STATES *****/
enum TrafficLightState {
  CAR_GREEN,
  PEDESTRIAN_GREEN
};

TrafficLightState currentState = CAR_GREEN;

void setup(void)
{
    // put your setup code here, to run once:
    Serial.begin(115200);
    Serial.println();
    Serial.println(">>> EasyButton pressed example <<<");

    pinMode(Button_PushButton_PIN_D2, INPUT_PULLUP);

    pinMode(Red_LED_PIN_D3, OUTPUT);
    pinMode(Green_LED_PIN_D4, OUTPUT);
    pinMode(Red_LED_PIN_D5, OUTPUT);
    pinMode(Green_LED_PIN_D6, OUTPUT);

    button.begin(); // Initialize the button
    button.onPressed(onPressed); // Attach the onPressed function to the button

    // Initialize traffic light to initial state
    Red_LED_PIN_D3_rawData = LOW; // Car Red Light OFF
    Green_LED_PIN_D4_rawData = HIGH; // Car Green Light ON
    Red_LED_PIN_D5_rawData = HIGH; // Pedestrian Red Light ON
    Green_LED_PIN_D6_rawData = LOW; // Pedestrian Green Light OFF

    updateOutputs(); // Update the initial state of the LEDs
}

void loop(void)
{
    // put your main code here, to run repeatedly:
    button.read(); // Read the button state
}

void updateOutputs()
{
    digitalWrite(Red_LED_PIN_D3, Red_LED_PIN_D3_rawData);
    digitalWrite(Green_LED_PIN_D4, Green_LED_PIN_D4_rawData);
    digitalWrite(Red_LED_PIN_D5, Red_LED_PIN_D5_rawData);
    digitalWrite(Green_LED_PIN_D6, Green_LED_PIN_D6_rawData);
}

void onPressed()
{
    Serial.println("Button pressed");

    // Toggle traffic light state
    if (currentState == CAR_GREEN) {
        currentState = PEDESTRIAN_GREEN;
        Red_LED_PIN_D3_rawData = HIGH; // Car Red Light ON
        Green_LED_PIN_D4_rawData = LOW; // Car Green Light OFF
        Red_LED_PIN_D5_rawData = LOW; // Pedestrian Red Light OFF
        Green_LED_PIN_D6_rawData = HIGH; // Pedestrian Green Light ON
    } else {
        currentState = CAR_GREEN;
        Red_LED_PIN_D3_rawData = LOW; // Car Red Light OFF
        Green_LED_PIN_D4_rawData = HIGH; // Car Green Light ON
        Red_LED_PIN_D5_rawData = HIGH; // Pedestrian Red Light ON
        Green_LED_PIN_D6_rawData = LOW; // Pedestrian Green Light OFF
    }

    updateOutputs(); // Refresh output data
}