/*

Convert DDR control panel to buttons.
DDR control panel uses a JST YLR-12V connector
Pins 1-6 are used for buttons, pin 7 and 8 are GRD

Button to keyboard mappings
Left 1 : A
Left 2 : D
Right 1 : J
Right 2 : L
Start 1 : S
Start 2 : K

*/

#define BT_L1 1
#define BT_L2 2
#define BT_R1 3
#define BT_R2 4
#define BT_S1 5
#define BT_S2 6

#include <Keyboard.h>

void setup()
{
    // Setup pins
    pinMode (BT_L1, INPUT);
    pinMode (BT_L2, INPUT);
    pinMode (BT_R1, INPUT);
    pinMode (BT_R2, INPUT);
    pinMode (BT_S1, INPUT);
    pinMode (BT_S2, INPUT);

    // Set pins to high
    digitalWrite(BT_L1, HIGH);
    digitalWrite(BT_L2, HIGH);
    digitalWrite(BT_R1, HIGH);
    digitalWrite(BT_R2, HIGH);
    digitalWrite(BT_S1, HIGH);
    digitalWrite(BT_S2, HIGH);

    Keyboard.begin();
}

void loop()
{
    // Check button inputs
    if(digitalRead(BT_L1) == LOW)
    {
        Keyboard.press('a');
    }
    else
    {
        Keyboard.release('a');
    }

    if(digitalRead(BT_L2) == LOW)
    {
        Keyboard.press('d');
    }
    else
    {
        Keyboard.release('d');
    }

    if(digitalRead(BT_R1) == LOW)
    {
        Keyboard.press('j');
    }
    else
    {
        Keyboard.release('j');
    }

    if(digitalRead(BT_R2) == LOW)
    {
        Keyboard.press('l');
    }
    else
    {
        Keyboard.release('l');
    }

    if(digitalRead(BT_S1) == LOW)
    {
        Keyboard.press('s');
    }
    else
    {
        Keyboard.release('s');
    }

    if(digitalRead(BT_S2) == LOW)
    {
        Keyboard.press('k');
    }
    else
    {
        Keyboard.release('k');
    }
}