DIY Arduino Tic Toc Toe Game

Mukesh Sankhla Jul 06.2020

0 50947 Medium

Tic Tac Toe game is a two player classic game. It becomes fun when you play it with your kids,family and friends. Here I have shown how to make a Tic Tac Toe game using a Arduino Uno,Push buttons and Pixel LEDs. This Arduino based 4 by 4 Tic Tac Toe is same as the classic Tic Tac Toe,only the difference is X and O's are represented in two different colors.This game has a program written in it which can decide who is winner or the game is draw.

The Tic Tac Toe is made using a Arduino Uno,Push Buttons and Pixel LEds(WS2812B).This project is basically a 4 by 4 RGB Matrix with each pixel having a push button in it. If a pixel is been pushed then it should light with its set color. This game is set with two colors Sky Blue color representing Player 1 and Pink color representing Player 2. The program written for this game can decide the win or draw. If a player wins then all the LEDs should animate with that player color. If game is draw then all the LEDs should animate with Red color. After completion of one game,the game should be restarted to do that we have a reset button connected to Arduino.

HARDWARE LIST

1 Arduino Uno R3

Link

1 WS2812b LED Strip (16 LEDs)

17 Pushbutton

1 5V Battery

1 White PLA

1 Black PLA

3D Printing:

*3D print all the parts : https://drive.google.com/drive/u/1/folders/1sGYkr8k3gp8-w5pl1QZt9qMYoxhpfWG-

*3D Print 16 small button in white PLA and remaining parts can be 3D printed in any color you want.

*After printing all the parts install all the 16 white buttons in the array using some fast glue.

Making Push Buttons KeyPad :

*Take a piece of cardboard,mark the positions with respect to 3D printed array on the cardboard.

*Glue all the 16 push buttons on the cardboard on the marked positions.

*Make all the connections by soldering the buttons with the help of some wires.

Circuit Connection:

*Connect the push buttons keypad to Arduino Uno as shown in circuit diagram.(R1~A0,R2~A1,R3~A2,R4~A3,C1~A4,C2~A5,C3~Pin 2,C4~Pin 3).

*Also take a extra push button(Reset Button) and connect to Arduino.(Reset,GND).

*Connect all the pixel LEDs.(-Ve/GND~GND,+Ve/5V~5V,Data In~Pin 5).

* I have used WS2812b LEDs,You can use the led strips which may be more convenient to use.

*Connect 3.7V/5V Batter with a ON/OFF Switch.

*Insert All the LEDs in each white 3D printed Buttons,one LED per each button.

Code:

*Open the code in Arduino IDE : https://drive.google.com/drive/u/1/folders/1KeANdMzzXC-KLtMS7SAzqsUkM_8mZS_q

*Install the KeyPad library and FastLED library into the Arduino IDE.

* Connect Arduino Uno to your PC.

*Select Board Type and Port.

*Upload the code.

CODE

#include <Keypad.h>
#include <FastLED.h>

#define LED_PIN     5
#define NUM_LEDS    16
#define LED_TYPE    WS2812B
#define COLOR_ORDER GRB
#define BRIGHTNESS  250
CRGB leds[NUM_LEDS];

int player=1;
int n,i,e=0,j=0;
char a[16]={'1','2','3','4','5','6','7','8','9','10','11','12','13','14','15','16'};
char key;
int w=0;

const byte ROWS = 4; //four rows
const byte COLS = 4; //four columns
//define the cymbols on the buttons of the keypads
char hexaKeys[ROWS][COLS] = {
  {'1','2','3','A'},
  {'4','5','6','B'},
  {'7','8','9','C'},
  {'*','0','#','D'}
};
byte rowPins[ROWS] = {A0,A1,A2,A3}; //connect to the row pinouts of the keypad
byte colPins[COLS] = {A4,A5,2,3}; //connect to the column pinouts of the keypad
Keypad customKeypad = Keypad( makeKeymap(hexaKeys), rowPins, colPins, ROWS, COLS); 

void setup(){
  Serial.begin(9600);
  LEDS.addLeds<LED_TYPE, LED_PIN, COLOR_ORDER>(leds, NUM_LEDS);
  FastLED.setBrightness(BRIGHTNESS);
  for(int m=0;m<3;m++)
  {
        leds[0].setRGB(0, 204, 255);
        leds[1].setRGB(0, 204, 255);
        leds[2].setRGB(0, 204, 255);
        leds[3].setRGB(0, 204, 255);
        leds[4].setRGB(0, 204, 255);
        leds[5].setRGB(0, 204, 255);
        leds[6].setRGB(0, 204, 255);
        leds[7].setRGB(0, 204, 255);
        leds[8].setRGB(0, 204, 255);
        leds[9].setRGB(0, 204, 255);
        leds[10].setRGB(0, 204, 255);
        leds[11].setRGB(0, 204, 255);
        leds[12].setRGB(0, 204, 255);
        leds[13].setRGB(0, 204, 255);
        leds[14].setRGB(0, 204, 255);
        leds[15].setRGB(0, 204, 255);
        FastLED.show();
        delay(500);
        leds[0].setRGB(255, 0, 225);
        leds[1].setRGB(255, 0, 225);
        leds[2].setRGB(255, 0, 225);
        leds[3].setRGB(255, 0, 225);
        leds[4].setRGB(255, 0, 225);
        leds[5].setRGB(255, 0, 225);
        leds[6].setRGB(255, 0, 225);
        leds[7].setRGB(255, 0, 225);
        leds[8].setRGB(255, 0, 225);
        leds[9].setRGB(255, 0, 225);
        leds[10].setRGB(255, 0, 225);
        leds[11].setRGB(255, 0, 225);
        leds[12].setRGB(255, 0, 225);
        leds[13].setRGB(255, 0, 225);
        leds[14].setRGB(255, 0, 225);
        leds[15].setRGB(255, 0, 225);
        FastLED.show();
        delay(500);
  }
        FastLED.clear();
        FastLED.show();
}
  
void loop()
{
  key = customKeypad.getKey();
  if (key && player==1)
  {
    Serial.println("\nP1");
    Serial.println(key);
    n=number(key);
    Serial.println(n);
    leds[n].setRGB(0, 204, 255);
    FastLED.show();
    a[n]='X';
    Serial.println(a[n]);
    w=check(a,n);
    if(w==1)
    {
      Serial.println("Player 1 Wins!");
      while(1)
      {
        leds[0].setRGB(0, 204, 255);
        leds[1].setRGB(0, 204, 255);
        leds[2].setRGB(0, 204, 255);
        leds[3].setRGB(0, 204, 255);
        leds[4].setRGB(0, 204, 255);
        leds[5].setRGB(0, 204, 255);
        leds[6].setRGB(0, 204, 255);
        leds[7].setRGB(0, 204, 255);
        leds[8].setRGB(0, 204, 255);
        leds[9].setRGB(0, 204, 255);
        leds[10].setRGB(0, 204, 255);
        leds[11].setRGB(0, 204, 255);
        leds[12].setRGB(0, 204, 255);
        leds[13].setRGB(0, 204, 255);
        leds[14].setRGB(0, 204, 255);
        leds[15].setRGB(0, 204, 255);
        FastLED.show();
        delay(500);
        FastLED.clear();
        FastLED.show();
        delay(500);
    }
   }
    player++;
    delay(1000);
  }
  delay(20);
  key = customKeypad.getKey();
  if (key && player==2)
  {
    Serial.println("\nP2");
    Serial.println(key);
    n=number(key);
    Serial.println(n);
    leds[n].setRGB(255, 0, 225);
    FastLED.show();
    a[n]='0';
    Serial.println(a[n]);
    w=check(a,n);
    if(w==2)
    {
      Serial.println("Player 2 Wins!");
      while(1)
      {
        leds[0].setRGB(255, 0, 225);
        leds[1].setRGB(255, 0, 225);
        leds[2].setRGB(255, 0, 225);
        leds[3].setRGB(255, 0, 225);
        leds[4].setRGB(255, 0, 225);
        leds[5].setRGB(255, 0, 225);
        leds[6].setRGB(255, 0, 225);
        leds[7].setRGB(255, 0, 225);
        leds[8].setRGB(255, 0, 225);
        leds[9].setRGB(255, 0, 225);
        leds[10].setRGB(255, 0, 225);
        leds[11].setRGB(255, 0, 225);
        leds[12].setRGB(255, 0, 225);
        leds[13].setRGB(255, 0, 225);
        leds[14].setRGB(255, 0, 225);
        leds[15].setRGB(255, 0, 225);
        FastLED.show();
        delay(500);
        FastLED.clear();
        FastLED.show();
        delay(500);
        
        
    }
    }
    e++;
  player--;
   delay(1000);
  }
  if(e==8)
  {
    Serial.println("Game Draw");
    while(1)
    {
        leds[0].setRGB(255, 0, 0);
        leds[1].setRGB(255, 0, 0);
        leds[2].setRGB(255, 0, 0);
        leds[3].setRGB(255, 0, 0);
        leds[4].setRGB(255, 0, 0);
        leds[5].setRGB(255, 0, 0);
        leds[6].setRGB(255, 0, 0);
        leds[7].setRGB(255, 0, 0);
        leds[8].setRGB(255, 0, 0);
        leds[9].setRGB(255, 0, 0);
        leds[10].setRGB(255, 0, 0);
        leds[11].setRGB(255, 0, 0);
        leds[12].setRGB(255, 0, 0);
        leds[13].setRGB(255, 0, 0);
        leds[14].setRGB(255, 0, 0);
        leds[15].setRGB(255, 0, 0);
        FastLED.show();
        delay(1000);
        FastLED.clear();
        FastLED.show();
        delay(500);
  }
  }
  delay(20);
}

int number(char keyn)
{
  if(keyn == '1')
    return 0;
  if(keyn == '2')
    return 1;
  if(keyn == '3')
    return 2;
  if(key == 'A')
    return 3;
  if(keyn == '4')
    return 4;
  if(keyn == '5')
    return 5;
  if(keyn == '6')
    return 6;
  if(keyn == 'B')
    return 7;
  if(keyn == '7')
    return 8;
  if(keyn == '8')
    return 9;
  if(keyn == '9')
    return 10;
  if(keyn == 'C')
    return 11;
  if(key == '*')
    return 12;
  if(keyn == '0')
    return 13;
  if(keyn == '#')
    return 14;
  if(keyn == 'D')
    return 15;
}

int check(char a[16],int n)
{
  
  if(a[0]=='X' && a[1]=='X' && a[2]=='X' && a[3]=='X')
    return 1;
  if(a[0]=='0' && a[1]=='0' && a[2]=='0' && a[3]=='0')
    return 2;
  if(a[0]=='X' && a[4]=='X' && a[8]=='X' && a[12]=='X')
    return 1;
  if(a[0]=='0' && a[4]=='0' && a[8]=='0' && a[12]=='0')
    return 2;
  if(a[0]=='X' && a[5]=='X' && a[10]=='X' && a[15]=='X')
    return 1;
  if(a[0]=='0' && a[5]=='0' && a[10]=='0' && a[15]=='0')
    return 2;
  if(a[1]=='X' && a[5]=='X' && a[9]=='X' && a[13]=='X')
    return 1;
  if(a[1]=='0' && a[5]=='0' && a[9]=='0' && a[13]=='0')
    return 2;
  if(a[2]=='X' && a[6]=='X' && a[10]=='X' && a[14]=='X')
    return 1;
  if(a[2]=='0' && a[6]=='0' && a[10]=='0' && a[14]=='0')
    return 2;
  if(a[3]=='X' && a[7]=='X' && a[11]=='X' && a[15]=='X')
    return 1;
  if(a[3]=='0' && a[7]=='0' && a[11]=='0' && a[15]=='0')
    return 2;
  if(a[3]=='X' && a[6]=='X' && a[9]=='X' && a[12]=='X')
    return 1;
  if(a[3]=='0' && a[6]=='0' && a[9]=='0' && a[12]=='0')
    return 2;
  if(a[4]=='X' && a[5]=='X' && a[6]=='X' && a[7]=='X')
    return 1;
  if(a[4]=='0' && a[5]=='0' && a[6]=='0' && a[7]=='0')
    return 2;
  if(a[8]=='X' && a[9]=='X' && a[10]=='X' && a[11]=='X')
    return 1;
  if(a[8]=='0' && a[9]=='0' && a[10]=='0' && a[11]=='0')
    return 2;
  if(a[12]=='X' && a[13]=='X' && a[14]=='X' && a[15]=='X')
    return 1;
  if(a[12]=='0' && a[13]=='0' && a[14]=='0' && a[15]=='0')
    return 2;
}