s49

gistfile1.c

#include <Keypad.h>

const byte rows = 7;
const byte cols = 14;

char keys[rows][cols] = {
{'a', 'b', 'c', 'd', '5', '6', '7', '8', '9', '10', '11', '12', '13', '14'},
{'e', 'f', 'g', 'h', '19', '20', '21', '22', '23', '24', '25', '26', '27', '28'},
{'i', 'j', 'k', 'l', '33', '34', '35', '36', '37', '38', '39', '40', '41', '42'},
{'m', 'n', 'o', 'p', '47', '48', '49', '50', '51', '52', '53', '54', '55', '56'},
{'q', 'r', 's', 't', 'u', '62', '63', '64', '65', '66', '67', '68', '69', '70'},
{'v', 'w', 'x', 'y', '75', '76', '77', '78', '79', '80', '81', '82', '83', '84'},
{'z', 'A', 'B', 'C', '89', '90', '91', '92', '93', '94', '95', '96', '97', '98'}
};

int notes[98] = {
84,
80,
83,
79,
82,
78,
81,
77,
80,
76,
79,
75,
78,
74,
77,
73,
76,
72,
75,
71,
74,
70,
73,
69,
72,
68,
71,
67,
70,
66,
69,
65,
68,
64,
67,
63,
66,
62,
65,
61,
64,
60,
63,
59,
62,
58,
61,
57,
60,
56,
59,
55,
58,
54,
57,
53,
56,
52,
55,
51,
54,
50,
53,
49,
52,
48,
51,
47,
50,
46,
49,
45,
48,
44,
47,
43,
46,
42,
45,
41,
44,
40,
43,
39,
42,
38,
41,
37,
40,
36,
39,
35,
38,
34,
37,
33,
36,
32
};

byte rowPins[rows] = {32, 33, 34, 35, 36, 37, 38};
byte colPins[cols] = {39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52};
Keypad keypad = Keypad(makeKeymap(keys), rowPins, colPins, rows, cols);
String msg;

void setup() {
  Serial.begin(31250);
  msg = "";
  keypad.setHoldTime(-1);
  keypad.addEventListener(keypadEvent); //add an event listener
  keypad.setDebounceTime(5);
}

void loop() {
  //char key = keypad.getKey();
  //if (key != NO_KEY) {// && key != '2') {
  //  Serial.println(key);
  //}
  keypad.getKeys();
}

//  plays a MIDI note.  Doesn't check to see that
//  cmd is greater than 127, or that data values are  less than 127:
void noteOn(int cmd, int pitch, int velocity) {
  Serial.write(cmd);
  Serial.write(pitch);
  Serial.write(velocity);
}

//take care of some special events
void keypadEvent(KeypadEvent eKey) {
        int cmd;
        for (int i=0; i<LIST_MAX; i++)   // Scan the whole key list.
        {
            if ( keypad.key[i].stateChanged )   // Only find keys that have changed state.
            {
                switch (keypad.key[i].kstate) {  // Report active key state : IDLE, PRESSED, HOLD, or RELEASED
                    case PRESSED:
                    cmd = 144;
                break;
                    case HOLD:
                    msg = " HOLD.";
                break;
                    case RELEASED:
                    cmd = 128;
                break;
                    case IDLE:
                    cmd = 128;
                }
                //Serial.print("Key ");
                //Serial.print(keypad.key[i].kcode);
                //Serial.println(msg);
                noteOn(cmd, notes[keypad.key[i].kcode], 127);
            }
        }
}