**Quiz Display** rev_01

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    - Project: **Quiz Display**
    - Source Code NOT compiled for: Arduino Uno
    - Source Code created on: 2024-11-14 15:06:13

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/****** SYSTEM REQUIREMENTS *****/
/****** SYSTEM REQUIREMENT 1 *****/
    /* A quiz game, where it will use tts voice with the */
    /* speaker, and it will ask questions with 2 choices, */
    /* and there is red button (left) and yellow button */
    /* (right)    It will display the choices on the OLED */
    /* Display. */
/****** END SYSTEM REQUIREMENTS *****/

/* START CODE */

/****** DEFINITION OF LIBRARIES *****/
#include <Wire.h>
#include <EasyButton.h> //https://github.com/evert-arias/EasyButton
#include <Adafruit_SSD1306.h>   //https://github.com/stblassitude/Adafruit_SSD1306_Wemos_OLED.git

/****** FUNCTION PROTOTYPES *****/
void setup(void);
void loop(void);
void displayQuestion(const char* question, const char* option1, const char* option2);
void checkAnswer(bool answer);

/***** DEFINITION OF DIGITAL INPUT PINS *****/
const uint8_t RedButton_PushButton_PIN_D2       = 2;
const uint8_t YellowButton_PushButton_PIN_D3        = 3;

/***** DEFINITION OF I2C PINS *****/
const uint8_t OLED_SSD1306OledDisplay_I2C_PIN_SDA_A4        = A4;
const uint8_t OLED_SSD1306OledDisplay_I2C_PIN_SCL_A5        = A5;
const uint8_t OLED_SSD1306OledDisplay_I2C_SLAVE_ADDRESS     = 60;

/****** DEFINITION OF LIBRARIES CLASS INSTANCES*****/
// Create instances for the buttons
EasyButton redButton(RedButton_PushButton_PIN_D2);
EasyButton yellowButton(YellowButton_PushButton_PIN_D3);

// Create instance for the OLED display
Adafruit_SSD1306 display(128, 32); // Initialize with width and height

void setup(void)
{
    // put your setup code here, to run once:
    pinMode(RedButton_PushButton_PIN_D2, INPUT_PULLUP);
    pinMode(YellowButton_PushButton_PIN_D3, INPUT_PULLUP);

    // Initialize the display
    display.begin(SSD1306_SWITCHCAPVCC, OLED_SSD1306OledDisplay_I2C_SLAVE_ADDRESS);
    display.clearDisplay();
    display.display();

    // Initialize buttons
    redButton.begin();
    yellowButton.begin();
}

void loop(void)
{
    // Update button states
    redButton.read();
    yellowButton.read();

    // Display a question
    displayQuestion("Is the sky blue?", "Red: No", "Yellow: Yes");

    // Check for button presses
    if (redButton.pressed()) {
        checkAnswer(false); // Red button pressed
    }
    if (yellowButton.pressed()) {
        checkAnswer(true); // Yellow button pressed
    }

    // Add a small delay to avoid bouncing
    delay(100);
}

void displayQuestion(const char* question, const char* option1, const char* option2) {
    display.clearDisplay();
    display.setTextSize(1);
    display.setTextColor(SSD1306_WHITE);
    display.setCursor(0, 0);
    display.println(question);
    display.setCursor(0, 16);
    display.println(option1);
    display.setCursor(0, 24);
    display.println(option2);
    display.display();
}

void checkAnswer(bool answer) {
    if (answer) {
        // Correct answer logic
        display.clearDisplay();
        display.setCursor(0, 0);
        display.println("Correct!");
    } else {
        // Incorrect answer logic
        display.clearDisplay();
        display.setCursor(0, 0);
        display.println("Incorrect!");
    }
    display.display();
    delay(2000); // Show result for 2 seconds
}

/* END CODE */