I am stuck and need help

Nicholas_Pfeiffer1 · June 18, 2021, 4:56pm

I am making a trivia game code, but it always seems to blow through my if statements and select a. I have confirmed the the buttons do work by adding a serial digital read for my buttons. here is the code that I have so far

#include <Wire.h>
#include <LiquidCrystal_I2C.h>


LiquidCrystal_I2C lcd(0x27, 20, 4);           // set the LCD address to 0x27 for a 16 chars and 2 line display
int LED0 = 22;                                //status light, ready (blue)
int LED1 = 23;                                //incorrect answer (red)
int LED2 = 24;                                //correct answer (green)
int button_pin = 25;                          //start game button
int button_a = 26;                            //answer choice A
int button_b = 27;                            //answer choice  B
int button_c = 28;                            //answer choice C
int button_d = 29;                            //answer choice D
int Score = 0;

void setup() {
  lcd.init();                                 // Initialize the lcd display.
  lcd.init();
  lcd.backlight();                            // Print a startup message on the LCD.
  lcd.setCursor(0, 0);
  lcd.print("--------------------");
  lcd.setCursor(6, 1);
  lcd.print("GEEEKPI");
  lcd.setCursor(1, 2);
  lcd.print("Arduino IIC Screen");
  lcd.setCursor(0, 3);
  lcd.print("--------------------");
  pinMode(LED0, OUTPUT);
  pinMode(LED1, OUTPUT);
  pinMode(LED2, OUTPUT);
  pinMode(button_pin, INPUT_PULLUP);
  pinMode(button_a, INPUT_PULLUP);
  pinMode(button_b, INPUT_PULLUP);
  pinMode(button_c, INPUT_PULLUP);
  pinMode(button_d, INPUT_PULLUP);
  digitalWrite(LED1, HIGH);                    //Show that the system is not ready
  delay(1000);
  lcd.clear();                                 //Clear the LCD startup message.
  delay(300);
  digitalWrite(LED1, LOW);                       //The game is ready to be started.
  digitalWrite(LED2, HIGH);                      //Show that the system is ready to be started.
}

void loop() {
  if (digitalRead(button_pin) == LOW) {        //Wait for the user to press start.
    digitalWrite(LED2, LOW);
    delay(1000);
    digitalWrite(LED0, HIGH);                  //Turn on the system status light.
    delay(1000);
    lcd.setCursor(0, 0);
    lcd.print("THE GAME WILL START");          //Tell the user "THE GAME WILL START SOON..."
    lcd.setCursor(0, 1);
    lcd.print("SOON...");
    delay(4500);
    lcd.clear();
    lcd.setCursor(0, 0);
    lcd.print("To submit an answer,");         //Make the LCD say "To submit an answer, press the button that represents your answer choice."
    lcd.setCursor(0, 1);
    lcd.print("press the button");
    lcd.setCursor(0, 2);
    lcd.print("that represents your");
    lcd.setCursor(0, 3);
    lcd.print("answer choice.");
    delay(5500);
    lcd.clear();
    delay(1000);
    lcd.setCursor(0, 0);
    lcd.print("TODAY'S CATEGORY IS");          // Tell the user "TODAY'S CATEGORY IS MOVIES
    delay(1500);
    lcd.setCursor(7, 1);
    lcd.print("MOVIES");
    delay(2500);
    lcd.clear();
    lcd.setCursor(5, 0);
    lcd.print("Question 1");                   //Question 1
    delay(1500);
    lcd.clear();
    lcd.setCursor(0, 0);
    lcd.print("When was the first");
    lcd.setCursor(0, 1);
    lcd.print("movie filmed?");
    delay(4000);
    lcd.setCursor(0, 2);
    lcd.print("A) 1880  B) 1884");
    lcd.setCursor(0, 3);
    lcd.print("C) 1888  D) 1892");
    delay(500);
    while (digitalRead(button_pin == HIGH)) { //This statement is only being used to create an if loop.
      if (digitalRead(button_a == LOW)) {     //Check to see if the player selected answer A.
        delay(100);
        digitalWrite(LED1, HIGH);
        lcd.clear();
        lcd.setCursor(5, 0);
        lcd.print("Incorrect!");
        delay(1500);
        lcd.clear();
        lcd.setCursor(0, 0);
        lcd.print("The correct answer");
        lcd.setCursor(0, 1);
        lcd.print("is...");
        delay(1500);
        lcd.setCursor(0, 2);
        lcd.print("C) 1888");
        delay(2000);
        break;
      } else if (digitalRead(button_b == LOW)) { //Check to see if the player selected answer B.
        delay(100);
        digitalWrite(LED1, HIGH);
        lcd.clear();
        lcd.setCursor(5, 0);
        lcd.print("Incorrect!");
        delay(1500);
        lcd.clear();
        lcd.setCursor(0, 0);
        lcd.print("The correct answer");
        lcd.setCursor(0, 1);
        lcd.print("is...");
        delay(1500);
        lcd.setCursor(0, 2);
        lcd.print("C) 1888");
        delay(2000);
        break;
      } else if (digitalRead(button_c == LOW)) { //Check to see if the player selected answer C.
        delay(100);
        digitalWrite(LED2, HIGH);
        lcd.clear();
        lcd.setCursor(5, 0);
        lcd.print("Correct!");
        Score = Score + 1;
        delay(1500);
        break;
      } else if (digitalRead(button_d == LOW)) { //Check to see if the player selected answer D.
        delay(100);
        digitalWrite(LED1, HIGH);
        lcd.clear();
        lcd.setCursor(5, 0);
        lcd.print("Incorrect!");
        delay(1500);
        lcd.clear();
        lcd.setCursor(0, 0);
        lcd.print("The correct answer");
        lcd.setCursor(0, 1);
        lcd.print("is...");
        delay(1500);
        lcd.setCursor(0, 2);
        lcd.print("C) 1888");
        delay(2000);
        break;
      }
    }
    lcd.clear();
    digitalWrite(LED1, LOW);                   //This resets the "correct" and "incorrect" light indicators.
    digitalWrite(LED2, LOW);
    lcd.setCursor(4, 0);
    lcd.print("Your Score Is");                //Tells the user their current score.
    lcd.setCursor(9, 1);
    lcd.print(Score);
    delay(2000);
    lcd.clear();
    lcd.setCursor(5, 0);
    lcd.print("Question 2");                   //Question 2
    delay(1500);
    lcd.clear();
    lcd.clear();
    lcd.setCursor(0, 0);
    lcd.print("When was Home Alone");
    lcd.setCursor(0, 1);
    lcd.print("filmed?");
    delay(3000);
    lcd.setCursor(0, 2);
    lcd.print("A) 1989  B) 1990");
    lcd.setCursor(0, 3);
    lcd.print("C) 1991  D) 1992");
    delay(500);
    while (digitalRead(button_pin == HIGH)) {
      if (digitalRead(button_a == LOW)) {
        delay(100);
        digitalWrite(LED1, HIGH);
        lcd.clear();
        lcd.setCursor(5, 0);
        lcd.print("Incorrect!");
        delay(1500);
        lcd.clear();
        lcd.setCursor(0, 0);
        lcd.print("The correct answer");
        lcd.setCursor(0, 1);
        lcd.print("is...");
        delay(1500);
        lcd.setCursor(0, 2);
        lcd.print("B) 1990");
        delay(2000);
        break;
      } else if (digitalRead(button_b == LOW)) {
        delay(100);
        digitalWrite(LED2, HIGH);
        lcd.clear();
        lcd.setCursor(5, 0);
        lcd.print("Correct!");
        Score = Score + 1;
        delay(1500);
        break;
      } else if (digitalRead(button_c == LOW)) {
        delay(100);
        digitalWrite(LED1, HIGH);
        lcd.clear();
        lcd.setCursor(5, 0);
        lcd.print("Incorrect!");
        delay(1500);
        lcd.clear();
        lcd.setCursor(0, 0);
        lcd.print("The correct answer");
        lcd.setCursor(0, 1);
        lcd.print("is...");
        delay(1500);
        lcd.setCursor(0, 2);
        lcd.print("B) 1990");
        delay(2000);
        break;
      } else if (digitalRead(button_d == LOW)) {
        delay(100);
        digitalWrite(LED1, HIGH);
        lcd.clear();
        lcd.setCursor(5, 0);
        lcd.print("Incorrect!");
        delay(1500);
        lcd.clear();
        lcd.setCursor(0, 0);
        lcd.print("The correct answer");
        lcd.setCursor(0, 1);
        lcd.print("is...");
        delay(1500);
        lcd.setCursor(0, 2);
        lcd.print("B) 1990");
        delay(2000);
        break;
      }
    }
    lcd.clear();
    digitalWrite(LED1, LOW);
    digitalWrite(LED2, LOW);
    lcd.setCursor(4, 0);
    lcd.print("Your Score Is");
    lcd.setCursor(9, 1);
    lcd.print(Score);
    delay(2000);
    lcd.clear();
    lcd.setCursor(5, 0);
    lcd.print("Question 3");                   //Question 3
    delay(1500);
    lcd.clear();
    lcd.clear();
    lcd.setCursor(0, 0);
    lcd.print("When was A Bugs Life");
    lcd.setCursor(2, 1);
    lcd.print("filmed?");
    delay(3000);
    lcd.setCursor(0, 2);
    lcd.print("A) 1995  B) 1996");
    lcd.setCursor(0, 3);
    lcd.print("C) 1997  D) 1998");
    delay(500);
    while (digitalRead(button_pin == HIGH)) {
      if (digitalRead(button_a == LOW)) {
        delay(100);
        digitalWrite(LED1, HIGH);
        lcd.clear();
        lcd.setCursor(5, 0);
        lcd.print("Incorrect!");
        delay(1500);
        lcd.clear();
        lcd.setCursor(0, 0);
        lcd.print("The correct answer");
        lcd.setCursor(0, 1);
        lcd.print("is...");
        delay(1500);
        lcd.setCursor(0, 2);
        lcd.print("D) 1998");
        delay(2000);
        break;
      } else if (digitalRead(button_b == LOW)) {
        delay(100);
        digitalWrite(LED1, HIGH);
        lcd.clear();
        lcd.setCursor(5, 0);
        lcd.print("Incorrect!");
        delay(1500);
        lcd.clear();
        lcd.setCursor(0, 0);
        lcd.print("The correct answer");
        lcd.setCursor(0, 1);
        lcd.print("is...");
        delay(1500);
        lcd.setCursor(0, 2);
        lcd.print("D) 1998");
        delay(2000);
        break;
      } else if (digitalRead(button_c == LOW)) {
        delay(100);
        digitalWrite(LED1, HIGH);
        lcd.clear();
        lcd.setCursor(5, 0);
        lcd.print("Incorrect!");
        delay(1500);
        lcd.clear();
        lcd.setCursor(0, 0);
        lcd.print("The correct answer");
        lcd.setCursor(0, 1);
        lcd.print("is...");
        delay(1500);
        lcd.setCursor(0, 2);
        lcd.print("D) 1998");
        delay(2000);
        break;
      } else if (digitalRead(button_d == LOW)) {
        delay(100);
        digitalWrite(LED2, HIGH);
        lcd.clear();
        lcd.setCursor(5, 0);
        lcd.print("Correct!");
        Score = Score + 1;
        delay(1500);
        break;
      }
    }
    lcd.clear();
    digitalWrite(LED1, LOW);                   //This resets the "correct" and "incorrect" light indicators.
    digitalWrite(LED2, LOW);
    lcd.setCursor(4, 0);
    lcd.print("Your Score Is");                //Tells the user their current score.
    lcd.setCursor(9, 1);
    lcd.print(Score);
    delay(2000);
    lcd.clear();
    lcd.setCursor(5, 0);
    lcd.print("Question 4");                   //Question 4
    delay(1500);
    lcd.clear();
    lcd.clear();
    lcd.setCursor(0, 0);
    lcd.print("When did Walt");
    lcd.setCursor(2, 1);
    lcd.print("Disney Die?");
    delay(3000);
    lcd.clear();
    lcd.setCursor(0, 0);
    lcd.print("A) 1966  B) 1967");
    lcd.setCursor(0, 1);
    lcd.print("C) 1968  D) 1969");
    while (digitalRead(button_pin == HIGH)) {
      if (digitalRead(button_a == LOW)) {
        delay(100);
        digitalWrite(LED2, HIGH);
        lcd.clear();
        lcd.setCursor(5, 0);
        lcd.print("Correct!");
        Score = Score + 1;
        delay(1500);
        break;
      } else if (digitalRead(button_b == LOW)) {
        delay(100);
        digitalWrite(LED1, HIGH);
        lcd.clear();
        lcd.setCursor(5, 0);
        lcd.print("Incorrect!");
        delay(1500);
        lcd.clear();
        lcd.setCursor(0, 0);
        lcd.print("The correct answer");
        lcd.setCursor(0, 1);
        lcd.print("is...");
        delay(1500);
        lcd.setCursor(0, 2);
        lcd.print("A) 1966");
        delay(2000);
        break;
      } else if (digitalRead(button_c == LOW)) {
        delay(100);
        digitalWrite(LED1, HIGH);
        lcd.clear();
        lcd.setCursor(5, 0);
        lcd.print("Incorrect!");
        delay(1500);
        lcd.clear();
        lcd.setCursor(0, 0);
        lcd.print("The correct answer");
        lcd.setCursor(0, 1);
        lcd.print("is...");
        delay(1500);
        lcd.setCursor(0, 2);
        lcd.print("A) 1966");
        delay(2000);
        break;
      } else if (digitalRead(button_d == LOW)) {
        delay(100);
        digitalWrite(LED1, HIGH);
        lcd.clear();
        lcd.setCursor(5, 0);
        lcd.print("Incorrect!");
        delay(1500);
        lcd.clear();
        lcd.setCursor(0, 0);
        lcd.print("The correct answer");
        lcd.setCursor(0, 1);
        lcd.print("is...");
        delay(1500);
        lcd.setCursor(0, 2);
        lcd.print("A) 1966");
        delay(2000);
        break;
      }
    }
  }
}

anon73444976 · June 18, 2021, 5:03pm

Oops

Looks very much like a cut-and-paste; there are more, so many I'm surprised you didn't pick up on this sooner

anon35827816 · June 18, 2021, 5:06pm

This would be a good moment to start learning about arrays, I think.

Nicholas_Pfeiffer1 · June 18, 2021, 5:07pm

The reason i have the while statement is so that is will run the if statement inside of the loop over and over until someone selects an answer or presses skip (button_pin).

anon73444976 · June 18, 2021, 5:08pm

It's not the while or the if, it's the digitalRead in all cases, except the very first one in the loop function, which looks OK.

Nicholas_Pfeiffer1 · June 18, 2021, 5:09pm

oh, okay, what should I put instead?

anon73444976 · June 18, 2021, 5:10pm

You don't need to put anything instead, just move one ) character.

Look closely

Nicholas_Pfeiffer1 · June 18, 2021, 5:12pm

so, (digitalRead(button_pin) == HIGH)

anon73444976 · June 18, 2021, 5:12pm

Bingo!

Make sure you fix them all.

Nicholas_Pfeiffer1 · June 18, 2021, 5:12pm

OK, I will see if it works, Thank you so much!

Nicholas_Pfeiffer1 · June 18, 2021, 5:20pm

It worked thank you so much!

NEW CODE

#include <Wire.h>
#include <LiquidCrystal_I2C.h>


LiquidCrystal_I2C lcd(0x27, 20, 4);           // set the LCD address to 0x27 for a 16 chars and 2 line display
int LED0 = 22;                                //status light, ready (blue)
int LED1 = 23;                                //incorrect answer (red)
int LED2 = 24;                                //correct answer (green)
int button_pin = 25;                          //start game button
int button_a = 26;                            //answer choice A
int button_b = 27;                            //answer choice  B
int button_c = 28;                            //answer choice C
int button_d = 29;                            //answer choice D
int Score = 0;

void setup() {
  lcd.init();                                 // Initialize the lcd display.
  lcd.init();
  lcd.backlight();                            // Print a startup message on the LCD.
  lcd.setCursor(0, 0);
  lcd.print("--------------------");
  lcd.setCursor(6, 1);
  lcd.print("GEEEKPI");
  lcd.setCursor(1, 2);
  lcd.print("Arduino IIC Screen");
  lcd.setCursor(0, 3);
  lcd.print("--------------------");
  pinMode(LED0, OUTPUT);
  pinMode(LED1, OUTPUT);
  pinMode(LED2, OUTPUT);
  pinMode(button_pin, INPUT_PULLUP);
  pinMode(button_a, INPUT_PULLUP);
  pinMode(button_b, INPUT_PULLUP);
  pinMode(button_c, INPUT_PULLUP);
  pinMode(button_d, INPUT_PULLUP);
  digitalWrite(LED1, HIGH);                    //Show that the system is not ready
  delay(1000);
  lcd.clear();                                 //Clear the LCD startup message.
  delay(300);
  digitalWrite(LED1, LOW);                       //The game is ready to be started.
  digitalWrite(LED2, HIGH);                      //Show that the system is ready to be started.
}

void loop() {
  if (digitalRead(button_pin) == LOW) {        //Wait for the user to press start.
    digitalWrite(LED2, LOW);
    delay(1000);
    digitalWrite(LED0, HIGH);                  //Turn on the system status light.
    delay(1000);
    lcd.setCursor(0, 0);
    lcd.print("THE GAME WILL START");          //Tell the user "THE GAME WILL START SOON..."
    lcd.setCursor(0, 1);
    lcd.print("SOON...");
    delay(4500);
    lcd.clear();
    lcd.setCursor(0, 0);
    lcd.print("To submit an answer,");         //Make the LCD say "To submit an answer, press the button that represents your answer choice."
    lcd.setCursor(0, 1);
    lcd.print("press the button");
    lcd.setCursor(0, 2);
    lcd.print("that represents your");
    lcd.setCursor(0, 3);
    lcd.print("answer choice.");
    delay(5500);
    lcd.clear();
    delay(1000);
    lcd.setCursor(0, 0);
    lcd.print("TODAY'S CATEGORY IS");          // Tell the user "TODAY'S CATEGORY IS MOVIES
    delay(1500);
    lcd.setCursor(7, 1);
    lcd.print("MOVIES");
    delay(2500);
    lcd.clear();
    lcd.setCursor(5, 0);
    lcd.print("Question 1");                   //Question 1
    delay(1500);
    lcd.clear();
    lcd.setCursor(0, 0);
    lcd.print("When was the first");
    lcd.setCursor(0, 1);
    lcd.print("movie filmed?");
    delay(4000);
    lcd.setCursor(0, 2);
    lcd.print("A) 1880  B) 1884");
    lcd.setCursor(0, 3);
    lcd.print("C) 1888  D) 1892");
    delay(500);
    while (digitalRead(button_pin) == HIGH) { //This statement is only being used to create an if loop.
      if (digitalRead(button_a) == LOW) {     //Check to see if the player selected answer A.
        delay(100);
        digitalWrite(LED1, HIGH);
        lcd.clear();
        lcd.setCursor(5, 0);
        lcd.print("Incorrect!");
        delay(1500);
        lcd.clear();
        lcd.setCursor(0, 0);
        lcd.print("The correct answer");
        lcd.setCursor(0, 1);
        lcd.print("is...");
        delay(1500);
        lcd.setCursor(0, 2);
        lcd.print("C) 1888");
        delay(2000);
        break;
      } else if (digitalRead(button_b) == LOW) { //Check to see if the player selected answer B.
        delay(100);
        digitalWrite(LED1, HIGH);
        lcd.clear();
        lcd.setCursor(5, 0);
        lcd.print("Incorrect!");
        delay(1500);
        lcd.clear();
        lcd.setCursor(0, 0);
        lcd.print("The correct answer");
        lcd.setCursor(0, 1);
        lcd.print("is...");
        delay(1500);
        lcd.setCursor(0, 2);
        lcd.print("C) 1888");
        delay(2000);
        break;
      } else if (digitalRead(button_c) == LOW) { //Check to see if the player selected answer C.
        delay(100);
        digitalWrite(LED2, HIGH);
        lcd.clear();
        lcd.setCursor(5, 0);
        lcd.print("Correct!");
        Score = Score + 1;
        delay(1500);
        break;
      } else if (digitalRead(button_d) == LOW) { //Check to see if the player selected answer D.
        delay(100);
        digitalWrite(LED1, HIGH);
        lcd.clear();
        lcd.setCursor(5, 0);
        lcd.print("Incorrect!");
        delay(1500);
        lcd.clear();
        lcd.setCursor(0, 0);
        lcd.print("The correct answer");
        lcd.setCursor(0, 1);
        lcd.print("is...");
        delay(1500);
        lcd.setCursor(0, 2);
        lcd.print("C) 1888");
        delay(2000);
        break;
      }
    }
    lcd.clear();
    digitalWrite(LED1, LOW);                   //This resets the "correct" and "incorrect" light indicators.
    digitalWrite(LED2, LOW);
    lcd.setCursor(4, 0);
    lcd.print("Your Score Is");                //Tells the user their current score.
    lcd.setCursor(9, 1);
    lcd.print(Score);
    delay(2000);
    lcd.clear();
    lcd.setCursor(5, 0);
    lcd.print("Question 2");                   //Question 2
    delay(1500);
    lcd.clear();
    lcd.clear();
    lcd.setCursor(0, 0);
    lcd.print("When was Home Alone");
    lcd.setCursor(0, 1);
    lcd.print("filmed?");
    delay(3000);
    lcd.setCursor(0, 2);
    lcd.print("A) 1989  B) 1990");
    lcd.setCursor(0, 3);
    lcd.print("C) 1991  D) 1992");
    delay(500);
    while (digitalRead(button_pin) == HIGH) {
      if (digitalRead(button_a) == LOW) {
        delay(100);
        digitalWrite(LED1, HIGH);
        lcd.clear();
        lcd.setCursor(5, 0);
        lcd.print("Incorrect!");
        delay(1500);
        lcd.clear();
        lcd.setCursor(0, 0);
        lcd.print("The correct answer");
        lcd.setCursor(0, 1);
        lcd.print("is...");
        delay(1500);
        lcd.setCursor(0, 2);
        lcd.print("B) 1990");
        delay(2000);
        break;
      } else if (digitalRead(button_b) == LOW) {
        delay(100);
        digitalWrite(LED2, HIGH);
        lcd.clear();
        lcd.setCursor(5, 0);
        lcd.print("Correct!");
        Score = Score + 1;
        delay(1500);
        break;
      } else if (digitalRead(button_c) == LOW) {
        delay(100);
        digitalWrite(LED1, HIGH);
        lcd.clear();
        lcd.setCursor(5, 0);
        lcd.print("Incorrect!");
        delay(1500);
        lcd.clear();
        lcd.setCursor(0, 0);
        lcd.print("The correct answer");
        lcd.setCursor(0, 1);
        lcd.print("is...");
        delay(1500);
        lcd.setCursor(0, 2);
        lcd.print("B) 1990");
        delay(2000);
        break;
      } else if (digitalRead(button_d) == LOW) {
        delay(100);
        digitalWrite(LED1, HIGH);
        lcd.clear();
        lcd.setCursor(5, 0);
        lcd.print("Incorrect!");
        delay(1500);
        lcd.clear();
        lcd.setCursor(0, 0);
        lcd.print("The correct answer");
        lcd.setCursor(0, 1);
        lcd.print("is...");
        delay(1500);
        lcd.setCursor(0, 2);
        lcd.print("B) 1990");
        delay(2000);
        break;
      }
    }
    lcd.clear();
    digitalWrite(LED1, LOW);
    digitalWrite(LED2, LOW);
    lcd.setCursor(4, 0);
    lcd.print("Your Score Is");
    lcd.setCursor(9, 1);
    lcd.print(Score);
    delay(2000);
    lcd.clear();
    lcd.setCursor(5, 0);
    lcd.print("Question 3");                   //Question 3
    delay(1500);
    lcd.clear();
    lcd.clear();
    lcd.setCursor(0, 0);
    lcd.print("When was A Bugs Life");
    lcd.setCursor(2, 1);
    lcd.print("filmed?");
    delay(3000);
    lcd.setCursor(0, 2);
    lcd.print("A) 1995  B) 1996");
    lcd.setCursor(0, 3);
    lcd.print("C) 1997  D) 1998");
    delay(500);
    while (digitalRead(button_pin) == HIGH) {
      if (digitalRead(button_a) == LOW) {
        delay(100);
        digitalWrite(LED1, HIGH);
        lcd.clear();
        lcd.setCursor(5, 0);
        lcd.print("Incorrect!");
        delay(1500);
        lcd.clear();
        lcd.setCursor(0, 0);
        lcd.print("The correct answer");
        lcd.setCursor(0, 1);
        lcd.print("is...");
        delay(1500);
        lcd.setCursor(0, 2);
        lcd.print("D) 1998");
        delay(2000);
        break;
      } else if (digitalRead(button_b) == LOW) {
        delay(100);
        digitalWrite(LED1, HIGH);
        lcd.clear();
        lcd.setCursor(5, 0);
        lcd.print("Incorrect!");
        delay(1500);
        lcd.clear();
        lcd.setCursor(0, 0);
        lcd.print("The correct answer");
        lcd.setCursor(0, 1);
        lcd.print("is...");
        delay(1500);
        lcd.setCursor(0, 2);
        lcd.print("D) 1998");
        delay(2000);
        break;
      } else if (digitalRead(button_c) == LOW) {
        delay(100);
        digitalWrite(LED1, HIGH);
        lcd.clear();
        lcd.setCursor(5, 0);
        lcd.print("Incorrect!");
        delay(1500);
        lcd.clear();
        lcd.setCursor(0, 0);
        lcd.print("The correct answer");
        lcd.setCursor(0, 1);
        lcd.print("is...");
        delay(1500);
        lcd.setCursor(0, 2);
        lcd.print("D) 1998");
        delay(2000);
        break;
      } else if (digitalRead(button_d) == LOW) {
        delay(100);
        digitalWrite(LED2, HIGH);
        lcd.clear();
        lcd.setCursor(5, 0);
        lcd.print("Correct!");
        Score = Score + 1;
        delay(1500);
        break;
      }
    }
    lcd.clear();
    digitalWrite(LED1, LOW);                   //This resets the "correct" and "incorrect" light indicators.
    digitalWrite(LED2, LOW);
    lcd.setCursor(4, 0);
    lcd.print("Your Score Is");                //Tells the user their current score.
    lcd.setCursor(9, 1);
    lcd.print(Score);
    delay(2000);
    lcd.clear();
    lcd.setCursor(5, 0);
    lcd.print("Question 4");                   //Question 4
    delay(1500);
    lcd.clear();
    lcd.clear();
    lcd.setCursor(0, 0);
    lcd.print("When did Walt");
    lcd.setCursor(2, 1);
    lcd.print("Disney Die?");
    delay(3000);
    lcd.clear();
    lcd.setCursor(0, 0);
    lcd.print("A) 1966  B) 1967");
    lcd.setCursor(0, 1);
    lcd.print("C) 1968  D) 1969");
    while (digitalRead(button_pin) == HIGH) {
      if (digitalRead(button_a) == LOW) {
        delay(100);
        digitalWrite(LED2, HIGH);
        lcd.clear();
        lcd.setCursor(5, 0);
        lcd.print("Correct!");
        Score = Score + 1;
        delay(1500);
        break;
      } else if (digitalRead(button_b) == LOW) {
        delay(100);
        digitalWrite(LED1, HIGH);
        lcd.clear();
        lcd.setCursor(5, 0);
        lcd.print("Incorrect!");
        delay(1500);
        lcd.clear();
        lcd.setCursor(0, 0);
        lcd.print("The correct answer");
        lcd.setCursor(0, 1);
        lcd.print("is...");
        delay(1500);
        lcd.setCursor(0, 2);
        lcd.print("A) 1966");
        delay(2000);
        break;
      } else if (digitalRead(button_c) == LOW) {
        delay(100);
        digitalWrite(LED1, HIGH);
        lcd.clear();
        lcd.setCursor(5, 0);
        lcd.print("Incorrect!");
        delay(1500);
        lcd.clear();
        lcd.setCursor(0, 0);
        lcd.print("The correct answer");
        lcd.setCursor(0, 1);
        lcd.print("is...");
        delay(1500);
        lcd.setCursor(0, 2);
        lcd.print("A) 1966");
        delay(2000);
        break;
      } else if (digitalRead(button_d) == LOW) {
        delay(100);
        digitalWrite(LED1, HIGH);
        lcd.clear();
        lcd.setCursor(5, 0);
        lcd.print("Incorrect!");
        delay(1500);
        lcd.clear();
        lcd.setCursor(0, 0);
        lcd.print("The correct answer");
        lcd.setCursor(0, 1);
        lcd.print("is...");
        delay(1500);
        lcd.setCursor(0, 2);
        lcd.print("A) 1966");
        delay(2000);
        break;
      }
    }
  }
}

anon73444976 · June 18, 2021, 5:21pm

Hint: in all cases like this

lcd.print("--------------------");

Use

lcd.print(F("--------------------"));

And save precious RAM

Nicholas_Pfeiffer1 · June 18, 2021, 6:01pm

OK thanks

anon57585045 · June 18, 2021, 7:45pm

Yes, or

for (int i = 0; i < 20; i++)
{
  lcd.print('-');
}

system · October 16, 2021, 7:46pm

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