jam-jam-controller.ino

#include <Keyboard.h>

//Code by Mark Kleback for IMS Jam Jam Revolution
//http://www.kleebtronics.com/

//button pins 
int button1 = 9;
int button2 = 10;

//storing the button state to detect changes
int prevButton1State;
int prevButton2State;

int debounce = debounce;

//encoder stuff
int val;
int encoderPinA = 6;
int encoderPinB = 12;
int encoderPos = 0;
int encoderPinALast = LOW; 

// put your setup code here, to run once:
void setup() {
  Serial.begin(9600);

  Keyboard.begin();

  //set input pins
  pinMode(button1, INPUT_PULLUP);
  pinMode(button2, INPUT_PULLUP);
  pinMode(encoderPinA,  INPUT_PULLUP);
  pinMode(encoderPinB,  INPUT_PULLUP);

  //starting values
  prevButton1State = HIGH;
  prevButton2State = HIGH;
}


// put your main code here, to run repeatedly:
void loop() {

  //get the current value of the buttons
  int button1state = digitalRead(button1);
  int button2state = digitalRead(button2);

  //button 1 = x ----------------------
  if(button1state == LOW && prevButton1State == HIGH){
    Keyboard.press('x');
    prevButton1State = LOW;
    delay(debounce);
    //Keyboard.release('x'); //line removed to allow the button to be held down
  }

  if (button1state == HIGH && prevButton1State == LOW){
    Keyboard.release('x');
    prevButton1State = button1state;
  }

  //button 2 = z ----------------------
  if(button2state == LOW && prevButton2State == HIGH){
    Keyboard.press('z');
    prevButton2State = LOW;
    delay(debounce);
    //Keyboard.release('z'); //line removed to allow the button to be held down
  }

  if (button2state == HIGH && prevButton2State == LOW){
    Keyboard.release('z');
    prevButton2State = button2state;
  }


  //check Encoder ----------
  
  int n = digitalRead(encoderPinA);
  if (encoderPinALast == LOW && n == HIGH){
    if (digitalRead(encoderPinB) == LOW){
      //moving clockwise
      encoderPos++;
      Keyboard.press(KEY_RIGHT_ARROW);
      delay(10);
      Keyboard.release(KEY_RIGHT_ARROW);
    }
    else{
      //moving counter clockwise
      encoderPos--;
      Keyboard.press(KEY_LEFT_ARROW);
      delay(10);
      Keyboard.release(KEY_LEFT_ARROW);
    }
  }

  encoderPinALast = n;

  //uncomment this to check the encoder value in the Serial Monitor
  //Serial.println(encoderPos);
}