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This memory game plays a short introductory tune and flashes an LED. When you press the correct corresponding button, the lights flash again in a longer sequence. Each time you repeat the sequence back correctly, the game adds an extra step to make the sequence more challenging for you. When you make an error, the game resets itself.
#include <Tone.h>
Tone speakerpin;
int starttune[] = {NOTE_C4, NOTE_F4, NOTE_C4, NOTE_F4, NOTE_C4,
NOTE_F4, NOTE_C4, NOTE_F4, NOTE_G4, NOTE_F4,
NOTE_E4, NOTE_F4, NOTE_G4};
int duration2[] = {100, 200, 100, 200, 100, 400, 100, 100, 100, 100,
200, 100, 500};
int note[] = {NOTE_C4, NOTE_C4, NOTE_G4, NOTE_C5, NOTE_G4, NOTE_C5};
int duration[] = {100, 100, 100, 300, 100, 300};
boolean button[] = {2, 3, 4, 5}; // Pins connected to
// pushbutton inputs
boolean ledpin[] = {8, 9, 10, 11}; // Pins connected to LEDs
int turn = 0; // Turn counter
int buttonstate = 0; // Check pushbutton state
int randomArray[100]; // Array that can store up to 100 inputs
int inputArray[100];
void setup() {
// put your setup code here, to run once:
Serial.begin(9600);
speakerpin.begin(12); // Pin connected to piezo buzzer
for (int x = 0; x < 4; x++) {
pinMode(ledpin[x], OUTPUT); // Set LED pins as output
}
for (int x = 0; x < 4; x++) {
pinMode(button[x], INPUT); // Set pushbutton pins as inputs
digitalWrite(button[x], HIGH); // Enable internal pullup;
// pushbuttons start in high
// position; logic reversed
} // Generate "more randomness" with randomArray for the output
// function so pattern is different each time
randomSeed(analogRead(0));
for (int thisNote = 0; thisNote < 13; thisNote ++) {
speakerpin.play(starttune[thisNote]); // Play the next note
if (thisNote == 0 || thisNote == 2 || thisNote == 4 ||
thisNote == 6) { // Hold the note
digitalWrite(ledpin[0], HIGH);
} if (thisNote == 1 || thisNote == 3 || thisNote == 5 ||
thisNote == 7 || thisNote == 9 || thisNote == 11) {
digitalWrite(ledpin[1], HIGH); }
if (thisNote == 8 || thisNote == 12)
{ digitalWrite(ledpin[2], HIGH);
} if (thisNote == 10) {
digitalWrite(ledpin[3], HIGH);
} delay(duration2[thisNote]);
speakerpin.stop(); // Stop for the next note
digitalWrite(ledpin[0], LOW);
digitalWrite(ledpin[1], LOW);
digitalWrite(ledpin[2], LOW);
digitalWrite(ledpin[3], LOW);
delay(25); }
delay(1000); }
void loop() {
// put your main code here, to run repeatedly:
// Generate the array to be matched by the player
for (int y = 0; y <= 99; y++) {
digitalWrite(ledpin[0], HIGH);
digitalWrite(ledpin[1], HIGH);
digitalWrite(ledpin[2], HIGH);
digitalWrite(ledpin[3], HIGH); // Play the next note
for (int thisNote = 0; thisNote < 6; thisNote ++)
{ speakerpin.play(note[thisNote]); // Hold the note
delay(duration[thisNote]); // Stop for the next note
speakerpin.stop();
delay(25); }
digitalWrite(ledpin[0], LOW);
digitalWrite(ledpin[1], LOW);
digitalWrite(ledpin[2], LOW);
digitalWrite(ledpin[3], LOW);
delay(1000); // Limited by the turn variable
for (int y = turn; y <= turn; y++) {
Serial.println("");
Serial.print("Turn: ");
Serial.print(y);
Serial.println("");
randomArray[y] = random(1, 5); // Assign a random number (1-4)
// Light LEDs in random order
for (int x = 0; x <= turn; x++) {
Serial.print(randomArray[x]);
for (int y = 0; y < 4; y++) {
if (randomArray[x] == 1 && ledpin[y] == 8) {
digitalWrite(ledpin[y], HIGH);
speakerpin.play(NOTE_G3, 100);
delay(400);
digitalWrite(ledpin[y], LOW);
delay(100);
}
if (randomArray[x] == 2 && ledpin[y] == 9) {
digitalWrite(ledpin[y], HIGH);
speakerpin.play(NOTE_A3, 100);
delay(400);
digitalWrite(ledpin[y], LOW);
delay(100);
}
if (randomArray[x] == 3 && ledpin[y] == 10) {
digitalWrite(ledpin[y], HIGH);
speakerpin.play(NOTE_B3, 100);
delay(400);
digitalWrite(ledpin[y], LOW);
delay(100); }
if (randomArray[x] == 4 && ledpin[y] == 11) {
digitalWrite(ledpin[y], HIGH);
speakerpin.play(NOTE_C4, 100);
delay(400);
digitalWrite(ledpin[y], LOW);
delay(100);
}
}
}
}
input();
}
}
void input() {
for (int x = 0; x <= turn;) {
for (int y = 0; y < 4; y++) {
buttonstate = digitalRead(button[y]); // Check for button push
if (buttonstate == LOW && button[y] == 2) {
digitalWrite(ledpin[0], HIGH);
speakerpin.play(NOTE_G3, 100);
delay(200);
digitalWrite(ledpin[0], LOW);
inputArray[x] = 1;
delay(250);
Serial.print(" ");
Serial.print(1); // Check if value of user input matches the generated array
if (inputArray[x] != randomArray[x]) {
fail(); // If not, fail function is called
}
x++;
}
if (buttonstate == LOW && button[y] == 3) {
digitalWrite(ledpin[1], HIGH);
speakerpin.play(NOTE_A3, 100);
delay(200);
digitalWrite(ledpin[1], LOW);
inputArray[x] = 2;
delay(250);
Serial.print(" ");
Serial.print(2);
if (inputArray[x] != randomArray[x]) {
fail();
}
x++;
}
if (buttonstate == LOW && button[y] == 4) {
digitalWrite(ledpin[2], HIGH);
speakerpin.play(NOTE_B3, 100);
delay(200);
digitalWrite(ledpin[2], LOW);
inputArray[x] = 3;
delay(250);
Serial.print(" ");
Serial.print(3);
if (inputArray[x] != randomArray[x]) {
fail();
}
x++;
}
if (buttonstate == LOW && button[y] == 5) {
digitalWrite(ledpin[3], HIGH);
speakerpin.play(NOTE_C4, 100);
delay(200);
digitalWrite(ledpin[3], LOW);
inputArray[x] = 4;
delay(250);
Serial.print(" ");
Serial.print(4);
if (inputArray[x] != randomArray[x]) {
fail();
}
x++;
}
}
}
delay(500); turn++; // Increment turn count }
}
// Function used if player fails to match the sequence
void fail() {
for (int y = 0; y <= 2; y++) { // Flash lights to indicate failure
digitalWrite(ledpin[0], HIGH);
digitalWrite(ledpin[1], HIGH);
digitalWrite(ledpin[2], HIGH);
digitalWrite(ledpin[3], HIGH);
speakerpin.play(NOTE_G3, 300);
delay(200);
digitalWrite(ledpin[0], LOW);
digitalWrite(ledpin[1], LOW);
digitalWrite(ledpin[2], LOW);
digitalWrite(ledpin[3], LOW);
speakerpin.play(NOTE_C3, 300);
delay(200); }
delay(500); turn = -1; // Reset turn value to start the game again }
}
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