Modification of the existing sketch to match your pin use. Note that the example sketch has had the potentiometer support removed so that will have to be added back to allow the pot on A0 to do anything.
//BUTTON BOX
//USE w ProMicro
//AMSTUDIO 20.8.17
// Modified for @mikewhiskey00, 21-July-2021
#include <Keypad.h>
#include <Joystick.h>
#define ENABLE_PULLUPS
#define NUMROTARIES 3
#define NUMBUTTONS 25
#define NUMPOTS 1
#define NUMROWS 5
#define NUMCOLS 5
byte buttons[] =
{
// We are using .kcode (the index, 0-24) instead of
// .kchar (the character from this table) so
// these letters are unused and arbitrary as long as
// they are each unique and none of them are '\0'.
"ABCDE"
"FGHIJ"
"KLMNO"
"PQRST"
"UVWXY"
};
struct rotariesdef
{
byte pin1;
byte pin2;
int ccwchar;
int cwchar;
volatile unsigned char state;
};
rotariesdef rotaries[NUMROTARIES]
{
{0, 1, 25, 26, 0},
{2, 3, 27, 28, 0},
{4, 5, 29, 30, 0},
};
#define DIR_CCW 0x10
#define DIR_CW 0x20
#define R_START 0x0
#ifdef HALF_STEP
#define R_CCW_BEGIN 0x1
#define R_CW_BEGIN 0x2
#define R_START_M 0x3
#define R_CW_BEGIN_M 0x4
#define R_CCW_BEGIN_M 0x5
const unsigned char ttable[6][4] =
{
// R_START (00)
{R_START_M, R_CW_BEGIN, R_CCW_BEGIN, R_START},
// R_CCW_BEGIN
{R_START_M | DIR_CCW, R_START, R_CCW_BEGIN, R_START},
// R_CW_BEGIN
{R_START_M | DIR_CW, R_CW_BEGIN, R_START, R_START},
// R_START_M (11)
{R_START_M, R_CCW_BEGIN_M, R_CW_BEGIN_M, R_START},
// R_CW_BEGIN_M
{R_START_M, R_START_M, R_CW_BEGIN_M, R_START | DIR_CW},
// R_CCW_BEGIN_M
{R_START_M, R_CCW_BEGIN_M, R_START_M, R_START | DIR_CCW},
};
#else
#define R_CW_FINAL 0x1
#define R_CW_BEGIN 0x2
#define R_CW_NEXT 0x3
#define R_CCW_BEGIN 0x4
#define R_CCW_FINAL 0x5
#define R_CCW_NEXT 0x6
const unsigned char ttable[7][4] =
{
// R_START
{R_START, R_CW_BEGIN, R_CCW_BEGIN, R_START},
// R_CW_FINAL
{R_CW_NEXT, R_START, R_CW_FINAL, R_START | DIR_CW},
// R_CW_BEGIN
{R_CW_NEXT, R_CW_BEGIN, R_START, R_START},
// R_CW_NEXT
{R_CW_NEXT, R_CW_BEGIN, R_CW_FINAL, R_START},
// R_CCW_BEGIN
{R_CCW_NEXT, R_START, R_CCW_BEGIN, R_START},
// R_CCW_FINAL
{R_CCW_NEXT, R_CCW_FINAL, R_START, R_START | DIR_CCW},
// R_CCW_NEXT
{R_CCW_NEXT, R_CCW_FINAL, R_CCW_BEGIN, R_START},
};
#endif
byte rowPins[NUMROWS] = {A2, A1, A0, 15, 14};
byte colPins[NUMCOLS] = {16, 10, 9, 8, 7};
Keypad buttbx = Keypad( makeKeymap(buttons), rowPins, colPins, NUMROWS, NUMCOLS);
Joystick_ Joystick(JOYSTICK_DEFAULT_REPORT_ID,
JOYSTICK_TYPE_JOYSTICK, 32, 0,
false, false, false, false, false, false,
false, false, false, false, false);
void setup()
{
Joystick.begin();
rotary_init();
}
void loop()
{
CheckAllEncoders();
CheckAllButtons();
}
void CheckAllButtons(void)
{
if (buttbx.getKeys())
{
for (int i = 0; i < LIST_MAX; i++)
{
if ( buttbx.key[i].stateChanged )
{
switch (buttbx.key[i].kstate)
{
case PRESSED:
Joystick.setButton(buttbx.key[i].kcode, 1);
break;
case RELEASED:
Joystick.setButton(buttbx.key[i].kcode, 0);
break;
case IDLE:
case HOLD:
default:
break;
}
}
}
}
}
void rotary_init()
{
for (int i = 0; i < NUMROTARIES; i++)
{
#ifdef ENABLE_PULLUPS
pinMode(rotaries[i].pin1, INPUT_PULLUP);
pinMode(rotaries[i].pin2, INPUT_PULLUP);
#else
pinMode(rotaries[i].pin1, INPUT);
pinMode(rotaries[i].pin2, INPUT);
#endif
}
}
unsigned char rotary_process(int _i)
{
unsigned char pinstate = (digitalRead(rotaries[_i].pin2) << 1) | digitalRead(rotaries[_i].pin1);
rotaries[_i].state = ttable[rotaries[_i].state & 0xf][pinstate];
return (rotaries[_i].state & 0x30);
}
void CheckAllEncoders(void)
{
for (int i = 0; i < NUMROTARIES; i++)
{
unsigned char result = rotary_process(i);
if (result == DIR_CCW)
{
Joystick.setButton(rotaries[i].ccwchar, 1);
delay(50);
Joystick.setButton(rotaries[i].ccwchar, 0);
}
if (result == DIR_CW)
{
Joystick.setButton(rotaries[i].cwchar, 1);
delay(50);
Joystick.setButton(rotaries[i].cwchar, 0);
}
}
}
