Hello Everyone,
I am very new to both coding and Arduino but have been messing with them during the past few days. I found a tutorial online to make a Simon says type game with the Arduino and threw it into TinkerCad. After building and testing it I decided I would try and turn into a (sorry) version of Bop it by changing out two of the buttons to a slide switch and potentiometer. I got the slide-switch to work just fine however I am having a bunch of troubles getting the potentiometer to work as intended where it would turn on an LED once it hits a certain threshold and then off again once it is turned back.
Below I will provide the code and a picture of the circuit I have built, in TinkerCad.
//set the pins where the buttons, LEDs and buzzer connect
int button[] = {2, A0, 6, 8}; //red is button[0], yellow is button[1], green is button[2], blue is button[3]
int led[] = {3, 5, 7, 9}; //red is led[0], yellow is led[1], green is led[2], blue is led[3]
int tones[] = {262, 330, 392, 494}; //tones to play with each button (c, e, g, b)
int roundsToWin = 10; //number of rounds the player has to play before they win the game (the array can only hold up to 16 rounds)
int buttonSequence[16]; //make an array of numbers that will be the sequence that the player needs to remember
int buzzerPin = 10; //pin that the buzzer is connected to
int pressedButton = 4; //a variable to remember which button is being pressed. 4 is the value if no button is being pressed.
int roundCounter = 1; //keeps track of what round the player is on
long startTime = 0; //timer variable for time limit on button press
long timeLimit = 2000; //time limit to hit a button
boolean gameStarted = false; //variable to tell the game whether or not to play the start sequence
void setup() {
//set all of the button pins to input_pullup (use the built-in pull-up resistors)
pinMode(button[0], INPUT_PULLUP);
pinMode(button[1], INPUT);
pinMode(button[2], INPUT_PULLUP);
pinMode(button[3], INPUT_PULLUP);
//set all of the LED pins to output
pinMode(led[0], OUTPUT);
pinMode(led[1], OUTPUT);
pinMode(led[2], OUTPUT);
pinMode(led[3], OUTPUT);
pinMode(buzzerPin, OUTPUT); //set the buzzer pin to output
}
void loop() {
if (gameStarted == false) { //if the game hasn't started yet
startSequence(); //flash the start sequence
roundCounter = 0; //reset the round counter
delay(1500); //wait a second and a half
gameStarted = true; //set gameStarted to true so that this sequence doesn't start again
}
//each round, start by flashing out the sequence to be repeated
for (int i = 0; i <= roundCounter; i++) { //go through the array up to the current round number
flashLED(buttonSequence[i]); //turn on the LED for that array position and play the sound
delay(200); //wait
allLEDoff(); //turn all of the LEDs off
delay(200);
}
//then start going through the sequence one at a time and see if the user presses the correct button
for (int i = 0; i <= roundCounter; i++) { //for each button to be pressed in the sequence
startTime = millis(); //record the start time
while (gameStarted == true) { //loop until the player presses a button or the time limit is up (the time limit check is in an if statement)
pressedButton = buttonCheck(); //every loop check to see which button is pressed
if (pressedButton < 4) { //if a button is pressed... (4 means that no button is pressed)
flashLED(pressedButton); //flash the LED for the button that was pressed
if (pressedButton == buttonSequence[i]) { //if the button matches the button in the sequence
delay(250); //leave the LED light on for a moment
allLEDoff(); //then turn off all of the lights and
break; //end the while loop (this will go to the next number in the for loop)
} else { //if the button doesn't match the button in the sequence
loseSequence(); //play the lose sequence (the loose sequence stops the program)
break; //when the program gets back from the lose sequence, break the while loop so that the game can start over
}
} else { //if no button is pressed
allLEDoff(); //turn all the LEDs off
}
//check to see if the time limit is up
if (millis() - startTime > timeLimit) { //if the time limit is up
loseSequence(); //play the lose sequence
break; //when the program gets back from the lose sequence, break the while loop so that the game can start over
}
}
}
if (gameStarted == true) {
roundCounter = roundCounter + 1; //increase the round number by 1
if (roundCounter >= roundsToWin) { //if the player has gotten to the 16th round
winSequence(); //play the winning song
}
delay(500); //wait for half a second between rounds
}
}
//----------FUNCTIONS------------
//FLASH LED
void flashLED (int ledNumber) {
digitalWrite(led[ledNumber], HIGH);
tone(buzzerPin, tones[ledNumber]);
}
//TURN ALL LEDS OFF
void allLEDoff () {
//turn all the LEDs off
digitalWrite(led[0], LOW);
digitalWrite(led[1], LOW);
digitalWrite(led[2], LOW);
digitalWrite(led[3], LOW);
//turn the buzzer off
noTone(buzzerPin);
}
//CHECK WHICH BUTTON IS PRESSED
int buttonCheck() {
//check if any buttons are being pressed
if (digitalRead(button[0]) == LOW) {
return 0;
} else if (analogRead(button[1]) > 900) {
return 1;
} else if (digitalRead(button[2]) == LOW) {
return 2;
} else if (digitalRead(button[3]) == LOW) {
return 3;
} else {
return 4; //this will be the value for no button being pressed
}
}
//START SEQUENCE
void startSequence() {
randomSeed(analogRead(A0)); //make sure the random numbers are really random
//populate the buttonSequence array with random numbers from 0 to 3
for (int i = 0; i <= roundsToWin; i++) {
buttonSequence[i] = round(random(0, 4));
}
//flash all of the LEDs when the game starts
for (int i = 0; i <= 3; i++) {
tone(buzzerPin, tones[i], 200); //play one of the 4 tones
//turn all of the leds on
digitalWrite(led[0], HIGH);
digitalWrite(led[1], HIGH);
digitalWrite(led[2], HIGH);
digitalWrite(led[3], HIGH);
delay(100); //wait for a moment
//turn all of the leds off
digitalWrite(led[0], LOW);
digitalWrite(led[1], LOW);
digitalWrite(led[2], LOW);
digitalWrite(led[3], LOW);
delay(100); //wait for a moment
} //this will repeat 4 times
}
//WIN SEQUENCE
void winSequence() {
//turn all the LEDs on
for (int j = 0; j <= 3; j++) {
digitalWrite(led[j], HIGH);
}
//play the 1Up noise
tone(buzzerPin, 1318, 150); //E6
delay(175);
tone(buzzerPin, 1567, 150); //G6
delay(175);
tone(buzzerPin, 2637, 150); //E7
delay(175);
tone(buzzerPin, 2093, 150); //C7
delay(175);
tone(buzzerPin, 2349, 150); //D7
delay(175);
tone(buzzerPin, 3135, 500); //G7
delay(500);
//wait until a button is pressed
do {
pressedButton = buttonCheck();
} while (pressedButton > 3);
delay(100);
gameStarted = false; //reset the game so that the start sequence will play again.
}
//LOSE SEQUENCE
void loseSequence() {
//turn all the LEDs on
for (int j = 0; j <= 3; j++) {
digitalWrite(led[j], HIGH);
}
//play the 1Up noise
tone(buzzerPin, 130, 250); //E6
delay(275);
tone(buzzerPin, 73, 250); //G6
delay(275);
tone(buzzerPin, 65, 150); //E7
delay(175);
tone(buzzerPin, 98, 500); //C7
delay(500);
//wait until a button is pressed
do {
pressedButton = buttonCheck();
} while (pressedButton > 3);
delay(200);
gameStarted = false; //reset the game so that the start sequence will play again.
}
I have attached the picture of the circuit below just in case I messed up the connections or something.
