Простая игра на базе Arduino Uno. Использован также PCD8544 LCD дисплей(Nokia 5110)

Как нужно подключить дисплей к плате Arduino

Подключения для игры

Сам код:

#define PIN_SCE 7
#define PIN_RESET 6
#define PIN_DC 5
#define PIN_SDIN 4
#define PIN_SCLK 3

#define LCD_C LOW
#define LCD_D HIGH

#define LCD_X 84
#define LCD_Y 6

int barWidth = 16;
int barHeight = 4;
int ballPerimeter = 4;
unsigned int bar1X = 0;
unsigned int bar1Y = 0;
unsigned int bar2X = 0;
unsigned int bar2Y = LCD_Y * 8 - barHeight;
int ballX = 0;
int ballY = 0;
boolean isBallUp = false;
boolean isBallRight = true;

byte pixels[LCD_X][LCD_Y];
unsigned long lastRefreshTime;
const int refreshInterval = 150;
byte gameState = 1;
byte ballSpeed = 2;
byte player1WinCount = 0;
byte player2WinCount = 0;
byte hitCount = 0;

void setup(){
 //Serial.begin(9600);
 LcdInitialise();
 restartGame();
}

void loop(){
 unsigned long now = millis();
 if(now - lastRefreshTime > refreshInterval){
 update();
 refreshScreen();
 lastRefreshTime = now; 
 } 
}

void restartGame(){
 ballSpeed = 1;
 gameState = 1;
 ballX = random(0, 60);
 ballY = 20;
 isBallUp = false; 
 isBallRight = true;
 hitCount = 0;
}

void refreshScreen(){
 if(gameState == 1){
 for(int y = 0; y < LCD_Y; y++){
 for(int x = 0; x < LCD_X; x++){
 byte pixel = 0x00;
 int realY = y * 8;
 // draw ball if in the frame
 if(x >= ballX && x <= ballX + ballPerimeter -1 && ballY + ballPerimeter > realY && ballY < realY + 8 ){
 byte ballMask = 0x00;
 for(int i = 0; i < realY + 8 - ballY; i++){
 ballMask = ballMask >> 1;
 if(i < ballPerimeter)
 ballMask = 0x80 | ballMask;
 }
 pixel = pixel | ballMask;
 }
 
 // draw bars if in the frame
 if(x >= bar1X && x <= bar1X + barWidth -1 && bar1Y + barHeight > realY && bar1Y < realY + 8 ){
 byte barMask = 0x00;
 for(int i = 0; i < realY + 8 - bar1Y; i++){
 barMask = barMask >> 1;
 if(i < barHeight)
 barMask = 0x80 | barMask;
 }
 pixel = pixel | barMask;
 }
 
 if(x >= bar2X && x <= bar2X + barWidth -1 && bar2Y + barHeight > realY && bar2Y < realY + 8 ){
 byte barMask = 0x00;
 for(int i = 0; i < realY + 8 - bar2Y; i++){
 barMask = barMask >> 1;
 if(i < barHeight)
 barMask = 0x80 | barMask;
 }
 pixel = pixel | barMask;
 }
 LcdWrite(LCD_D, pixel);
 }
 }
 } else if(gameState == 2){
 
 }
}

void update(){
 if(gameState == 1){
 int barMargin = LCD_X - barWidth;
 int pot1 = analogRead(A0); //read potentiometers and set the bar positions
 int pot2 = analogRead(A1);
 bar1X = pot1 / 2 * LCD_X / 512;
 bar2X = pot2 / 2 * LCD_X / 512;
 
 if(bar1X > barMargin) bar1X = barMargin;
 if(bar2X > barMargin) bar2X = barMargin;
 
 //move the ball now
 if(isBallUp)
 ballY -= ballSpeed;
 else
 ballY += ballSpeed;
 if(isBallRight)
 ballX += ballSpeed;
 else
 ballX -= ballSpeed;
 //check collisions 
 if(ballX < 1){
 isBallRight = true;
 ballX = 0;
 }
 else if(ballX > LCD_X - ballPerimeter - 1){
 isBallRight = false;
 ballX = LCD_X - ballPerimeter;
 }
 if(ballY < barHeight){
 if(ballX + ballPerimeter >= bar1X && ballX <= bar1X + barWidth){ // ball bounces from bar1
 isBallUp = false;
 if(ballX + ballPerimeter/2 < bar1X + barWidth/2)
 isBallRight = false;
 else
 isBallRight = true;
 ballY = barHeight;
 if(++hitCount % 10 == 0 && ballSpeed < 5) 
 ballSpeed++;
 }else{ //player2 wins
 gameState = 2;
 player2WinCount++;
 }
 }
 if(ballY + ballPerimeter > LCD_Y * 8 - barHeight){
 if(ballX + ballPerimeter >= bar2X && ballX <= bar2X + barWidth){ //ball bounces from bar2
 isBallUp = true; 
 if(ballX + ballPerimeter/2 < bar2X + barWidth/2)
 isBallRight = false;
 else
 isBallRight = true;
 ballY = LCD_Y * 8 - barHeight - ballPerimeter;
 if(++hitCount % 10 == 0 && ballSpeed < 5) 
 ballSpeed++;
 }else{ // player 1 wins
 gameState = 2;
 player1WinCount++;
 }
 }
 }else if(gameState == 2){
 for(int i =0; i < 4; i++){
 LcdWrite(LCD_C, 0x0D ); // LCD in inverse mode.
 delay(300);
 LcdWrite(LCD_C, 0x0C ); // LCD in inverse mode.
 delay(300);
 }
 restartGame();
 } 
}

void LcdInitialise(void){
 pinMode(PIN_SCE, OUTPUT);
 pinMode(PIN_RESET, OUTPUT);
 pinMode(PIN_DC, OUTPUT);
 pinMode(PIN_SDIN, OUTPUT);
 pinMode(PIN_SCLK, OUTPUT);
 delay(200);
 digitalWrite(PIN_RESET, LOW);
 delay(500);
 digitalWrite(PIN_RESET, HIGH);
 LcdWrite(LCD_C, 0x21 ); // LCD Extended Commands.
 LcdWrite(LCD_C, 0xB1 ); // Set LCD Vop (Contrast). 
 LcdWrite(LCD_C, 0x04 ); // Set Temp coefficent. //0x04
 LcdWrite(LCD_C, 0x14 ); // LCD bias mode 1:48. //0x13
 LcdWrite(LCD_C, 0x0C ); // LCD in normal mode.
 LcdWrite(LCD_C, 0x20 );
 LcdWrite(LCD_C, 0x80 ); //select X Address 0 of the LCD Ram
 LcdWrite(LCD_C, 0x40 ); //select Y Address 0 of the LCD Ram - Reset is not working for some reason, so I had to set these addresses
 LcdWrite(LCD_C, 0x0C );
}

void LcdWrite(byte dc, byte data){
 digitalWrite(PIN_DC, dc);
 digitalWrite(PIN_SCE, LOW);
 shiftOut(PIN_SDIN, PIN_SCLK, MSBFIRST, data);
 digitalWrite(PIN_SCE, HIGH);
}