MEMORY GAME
In this tutorial we will teach you how to make Your Own Game with Arduino UNO / Nano.
Components Used :
| SR NO | COMPONENT NAME | QUANTITY |
| 1 | Arduino Board (Uno or Nano) | 1 |
| 2 | BreadBoard | 1 |
| 3 | Push Buttons | 4 |
| 4 | Resistors (220 ohm) | 4 |
| 5 | Buzzer | 1 |
| 6 | LEDs (5mm) | 4 |
| 7 | Jumper Cables (Male To Female) | 1 set |
Schematic Diagram :
Source Code:
const int button1 = 2;
const int button2 = 3;
const int button3 = 4;
const int button4 = 5;
const int led1 = 7;
const int led2 = 8;
const int led3 = 9;
const int led4 = 10;
const int buzzer = 12;
const int tones[] = {1915, 1700, 1519, 1432, 2700};
int buttonState[] = {0,0,0,0}; //the button
int lastButtonState[] = {0,0,0,0}; //of the button
int buttonPushCounter[] = {0,0,0,0};
// current state of
// previous state
void playTone(int tone, int duration) {
for (long i = 0; i < duration * 1000L; i += tone * 2) {
digitalWrite(buzzer, HIGH);
delayMicroseconds(tone);
digitalWrite(buzzer, LOW);
delayMicroseconds(tone);
}
}
void setup() {
// initialize inputs :
randomSeed(analogRead(0));
pinMode(button1, INPUT);
pinMode(button2, INPUT);
pinMode(button3, INPUT);
pinMode(button4, INPUT);
// initialize outputs:
pinMode(led1, OUTPUT);
pinMode(led2, OUTPUT);
pinMode(led3, OUTPUT);
pinMode(led4, OUTPUT);
pinMode(buzzer, OUTPUT);
// initialize serial communication for debugging:
//Serial.begin(9600);
}
int game_on = 0;
int wait = 0;
int currentlevel = 1; // This is the level (also the number of button presses to pass to next level)
long rand_num = 0; //initialize long variable for random number from 0-100.
int rando = 0; //initialize random integer for loopgame_on. Will be from 1-4 later.
int butwait = 500; //amount of time to wait for next button input (ghetto de-bounce)
int ledtime = 500; //amount of time each LED flashes for when button is pressed
int n_levels = 10; //number of levels until the game is won
int pinandtone = 0; //This integer is used when the sequence is displayed
int right = 0; //This variable must be 1 in order to go to the next level
int speedfactor = 5; //This is the final speed of the lights and sounds for the last level. This increases as more games are won
int leddelay = 200; //Initializing time for LED. This will decrease as the level increases
void loop() {
int n_array[n_levels];
int u_array[n_levels];
int i;
//clears arrays both “n_array” and “u_array” and starts a new game
if (game_on == 0){
for(i=0; i<n_levels; i=i+1){
n_array[i]=0;
u_array[i]=0;
rand_num = random(1,200);
if (rand_num <= 50)
rando=0;
else if (rand_num>50 && rand_num<=100)
rando=1;
else if (rand_num>100 && rand_num<=150)
rando=2;
else if (rand_num<=200)
rando=3;
//saves a random number in our n_array
n_array[i]=rando;
}
game_on = 1;
}
//shows the user the current sequence
if (wait == 0){
delay (200);
i = 0;
for (i = 0; i < currentlevel; i= i + 1){
leddelay =
ledtime/(1+(speedfactor/n_levels)*(currentlevel – 1));
pinandtone = n_array[i];
digitalWrite(pinandtone+7, HIGH);
playTone(tones[pinandtone], leddelay);
digitalWrite(pinandtone+7, LOW);
delay(100/speedfactor);
}
wait = 1;
}
i = 0;
int buttonchange = 0;
int j = 0; // This is the current position in the sequence
while (j < currentlevel){
while (buttonchange == 0){
for (i = 0; i < 4; i = i + 1){
buttonState[i] = digitalRead(i+2);
buttonchange = buttonchange + buttonState[i];
}
}
for (i = 0; i < 4; i = i + 1){
if (buttonState[i] == HIGH) {
digitalWrite(i+7, HIGH);
playTone(tones[i], ledtime);
digitalWrite(i+7, LOW);
wait = 0;
u_array[j]=i;
buttonState[i] = LOW;
buttonchange = 0;
}
}
if (u_array[j] == n_array[j]){
j++;
right = 1;
}
else{
right = 0;
i = 4;
j = currentlevel;
wait = 0;
}
}
if (right == 0){
delay(300);
i = 0;
game_on = 0;
currentlevel = 1;
for (i = 0; i < 4; i = i + 1){
digitalWrite(i+7, HIGH);
}
playTone(tones[4], ledtime);
for (i = 0; i < 4; i = i + 1){
digitalWrite(i+7, LOW);
}
delay (200);
for (i = 0; i < 4; i = i + 1){
digitalWrite(i+7, HIGH);
}
playTone(tones[4], ledtime);
for (i = 0; i < 4; i = i + 1){
digitalWrite(i+7, LOW);
}
delay(500);
game_on = 0;
}
//if you insert the right sequence it levels up
if (right == 1){
currentlevel++;
wait = 0;
}
//if you finish the game
if (currentlevel == n_levels){
delay(500);
// The following is the victory sound:
int notes[] = {2, 2, 2, 2, 0, 1, 2, 1, 2};
int note = 0;
int tempo[] = {200, 200, 200, 400, 400, 400, 200, 200,
600};
int breaks[] = {100, 100, 100, 200, 200, 200, 300, 100,
200};
for (i = 0; i < 9; i = i + 1){
note = notes[i];
digitalWrite(note+7, HIGH);
playTone(tones[note], tempo[i]);
digitalWrite(note+7, LOW);
delay(breaks[i]);
}
//sets game_on to 0, so it restarts a new game
game_on = 0;
currentlevel = 1;
n_levels = n_levels + 2;
speedfactor = speedfactor + 1;
}
Video:
