ArcadeItalia.NET

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// number managed chars
const int MIN_INDEX = 0;
const int MAX_INDEX = 12;
// just for debug mode
int _min_index = MIN_INDEX;
int _max_index = MAX_INDEX;

// DEBUG MODE
const int DEBUG_MODE = 0;
const int DEBUG_MIN_INDEX = 2;
const int DEBUG_MAX_INDEX = 4;

// input pin for pushbutton
const int UP_BUTTON_PIN = 13;
const int DOWN_BUTTON_PIN = 12;
const int LEFT_BUTTON_PIN = 10;
const int RIGHT_BUTTON_PIN = 11;
const int A_BUTTON_PIN = 7;
const int B_BUTTON_PIN = A4;
const int X_BUTTON_PIN = 5;
const int Y_BUTTON_PIN = 6;
const int L_BUTTON_PIN = A3;
const int R_BUTTON_PIN = A1; 
const int START_BUTTON_PIN = A0;
const int COIN_BUTTON_PIN = A2;
// NOT MORE USED
//const int ESC_BUTTON_PIN = 8;
//const int TAB_BUTTON_PIN = 9;


// char key output for pushbutton
const char UP_BUTTON_CHAR = KEY_UP_ARROW;
const char DOWN_BUTTON_CHAR = KEY_DOWN_ARROW;
const char LEFT_BUTTON_CHAR = KEY_LEFT_ARROW;
const char RIGHT_BUTTON_CHAR = KEY_RIGHT_ARROW;
const char A_BUTTON_CHAR = 'a';
const char B_BUTTON_CHAR = 's';
const char X_BUTTON_CHAR = 'd';
const char Y_BUTTON_CHAR = 'f';
const char L_BUTTON_CHAR = 'q';
const char R_BUTTON_CHAR = 'w';
const char START_BUTTON_CHAR = KEY_RETURN;
const char COIN_BUTTON_CHAR = ' ';
// NOT MORE USED
//const char ESC_BUTTON_CHAR = KEY_ESC; // now via gameex UP+COIN+START
//const char TAB_BUTTON_CHAR = KEY_TAB;

// array
int pinArray [MAX_INDEX] = {START_BUTTON_PIN,X_BUTTON_PIN,COIN_BUTTON_PIN,B_BUTTON_PIN,Y_BUTTON_PIN,R_BUTTON_PIN,A_BUTTON_PIN,L_BUTTON_PIN,LEFT_BUTTON_PIN,UP_BUTTON_PIN,RIGHT_BUTTON_PIN,DOWN_BUTTON_PIN};
int charArray [MAX_INDEX] = {START_BUTTON_CHAR,X_BUTTON_CHAR,COIN_BUTTON_CHAR,B_BUTTON_CHAR,Y_BUTTON_CHAR,R_BUTTON_CHAR,A_BUTTON_CHAR,L_BUTTON_CHAR,LEFT_BUTTON_CHAR,UP_BUTTON_CHAR,RIGHT_BUTTON_CHAR,DOWN_BUTTON_CHAR};
int statusCheckArray [MAX_INDEX] = {LOW, LOW, LOW, LOW, LOW, LOW, LOW, LOW, LOW, LOW, LOW, LOW};

void setup() {
  
	// start serial port
	Serial.begin(9600);
  
	if (DEBUG_MODE == 1){
		_min_index = DEBUG_MIN_INDEX;
		_max_index = DEBUG_MAX_INDEX;  
	}
  
	// make the pushButton pin an input:
	for (int x = _min_index; x < _max_index; x++){
		Serial.print(pinArray[x]);
		Serial.println(" - pin setted ");
		pinMode(pinArray[x], INPUT_PULLUP);  
	}
	// initialize control over the keyboard:
	Keyboard.begin();
}

void loop() {
  // read the pushbuttons
	for (int x = _min_index; x < _max_index; x++){
		if (digitalRead(pinArray[x]) == statusCheckArray[x]){
			Keyboard.press(charArray[x]);
		  
			if (DEBUG_MODE == 1){
			  Serial.print(x);
			  Serial.print(" - index - ");
			  Serial.print(charArray[x]);
			  Serial.println(" - pressed");
			}
		}else{
			Keyboard.release(charArray[x]);
		}
    //delay(1000);
	}
}

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 /*
 * Space Invaders TV Game Joystick test sketch
 * Chris Mahoney / March 17, 2013
 *
 * Use keyboard emulation of Leonardo to press keyboard
 * keys when switches are triggered on Space Invaders controller.
 */

//Variables for the buttons
/* 
 * Switch order:
 * (8) Ground, L, U, R, D, B, A (2)
 */
// Arduino pin -> function
int buttonLeft=6, buttonUp=4, buttonRight=7, buttonDown=5, buttonB=1, buttonA=0, buttonC=2, buttonD=3, buttonCoin1=8, buttonStart=9, buttonStart2=21, buttonLeft2=15, buttonUp2=14, buttonRight2=16, buttonDown2=10, buttonB2=19, buttonA2=20, buttonC2=18;
// Set all pins high before setup()
int prevLeft = HIGH, prevUp = HIGH, prevRight = HIGH, prevDown = HIGH, prevB = HIGH, prevA = HIGH, prevC = HIGH, prevD = HIGH, prevCoin1 = HIGH, prevStart = HIGH, prevStart2 = HIGH, prevLeft2 = HIGH, prevUp2 = HIGH, prevRight2 = HIGH, prevDown2 = HIGH, prevB2 = HIGH, prevA2 = HIGH, prevC2 = HIGH;

// Array of button pins
int buttons[18] = {buttonLeft, buttonUp, buttonRight, buttonDown, buttonB, buttonA, buttonC, buttonD, buttonCoin1, buttonStart, buttonStart2, buttonLeft2, buttonUp2, buttonRight2, buttonDown2, buttonB2, buttonA2, buttonC2};
// Previous state of buttons
int prevButtons[18] = {HIGH, HIGH, HIGH, HIGH, HIGH, HIGH, HIGH, HIGH, HIGH, HIGH, HIGH, HIGH, HIGH, HIGH, HIGH, HIGH, HIGH, HIGH};
// Actual ASCII values to "press"
int buttonNames[18] = {KEY_LEFT_ARROW, KEY_UP_ARROW, KEY_RIGHT_ARROW, KEY_DOWN_ARROW, KEY_LEFT_ALT, KEY_LEFT_CTRL, 32, KEY_LEFT_SHIFT, 53, 49, 50, 97, 115, 113, 114, 102, 100, 103};
int pinCount = 18; // # of pins

void setup(void)
{
  // Set all pins INPUT to begin
  for (int pin = 0; pin < pinCount; pin++) {
    pinMode(pin, INPUT); 
  }
  // Enable keyboard interaction (REQUIRES LEONARDO/MICRO)
  Keyboard.begin();
}
void loop(void)
{
  // Run each pin each loop
  for (int pin = 0; pin < pinCount; pin++) {
    // Get pin value
    int buttonState = digitalRead(buttons[pin]);
    // Only process if different than last check
    if (buttonState != prevButtons[pin]) { // State change, process it                                                                                                                             
   
      // Pressed?
      if (buttonState == HIGH) {
        Keyboard.press(buttonNames[pin]);   
      } 
      // Released?
      if (buttonState == LOW) {
        Keyboard.release(buttonNames[pin]);
      }
      
      // Set new previous state
      prevButtons[pin] = buttonState;
      
    } // End state change
    
    // Delay to avoid freakouts if experienced
   //  delay(10);
  }

}

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void setup() {
  
Keyboard.begin();

//Joystick and button connections
pinMode(2, INPUT_PULLUP); //Joystick Left Switch
pinMode(3, INPUT_PULLUP); //Joystick Right Switch
pinMode(4, INPUT_PULLUP); //Fire Button
}

void loop() {
  
// Check the switches:
int buttonState2 = digitalRead(2);
int buttonState3 = digitalRead(3);
int buttonState4 = digitalRead(4);

// Joystick Left = Arrow Left Key
if (buttonState2 == LOW) {
Keyboard.press(216);
}
else {
Keyboard.release(216);
}

// Joystick Right = Arrow Right Key
if (buttonState3 == LOW) {
Keyboard.press(215);
}
else{
Keyboard.release(215);
}

// Fire Button = Left Ctrl key
if(buttonState4 == LOW) {
Keyboard.press(128);
}
else{
Keyboard.release(128);
}
}