Adithya Murali
/
chiller_usbkb_test
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Dependencies: DebounceIn PinDetect_KL25Z USBDevice mbed
Fork of
idd_fall15_hw2_chiller_morse
by 
IDD Fall 2015
main.cpp
- Committer:
- chiller
- Date:
- 2015-09-13
- Revision:
- 0:4b4ae443bf49
- Child:
- 1:11e89d389dd4
File content as of revision 0:4b4ae443bf49:
#include "mbed.h"
#include "USBKeyboard.h"
#include "DebounceIn.h"
#include "PinDetect.h"
DigitalOut redled(LED1);
DigitalOut greenled(LED2);
DigitalOut blueled(LED3);
DebounceIn dit(D2);
DebounceIn dah(D3);
DebounceIn space(D4);
PinDetect enter(D5);
PinDetect backspace(D6);
PinDetect capsLock(D7);
DigitalOut capsled(D8);
Serial pc(USBTX, USBRX); // tx, rx
USBKeyboard keyboard;
Timer t;
struct Node {
char character;
char modifier;
bool display;
Node *left, *right;
Node(char nodeChar, char nodeMod, bool disp, Node *leftN, Node *rightN):
character(nodeChar), modifier(nodeMod), display(disp), left(leftN), right(rightN) {}
};
Node *head, *superHead;
double timerTime;
int main() {
dit.mode(PullUp);
dah.mode(PullUp);
space.mode(PullUp);
enter.mode(PullUp);
backspace.mode(PullUp);
capsLock.mode(PullUp);
// Delay for initial pullup to take effect
wait(.001);
bool ditActive=false;
bool dahActive=false;
bool spaceActive = false;
bool enterActive = false;
bool backspaceActive = false;
bool capsLockActive = false;
Node *head = new Node(' ',0, false,
new Node('e',0,true,
new Node('i',0, true,
new Node('s',0, true,
new Node('h',0, true,
new Node('5',0, true, NULL, NULL),
new Node('4',0, true, NULL, NULL)),
new Node('v',0, true,
new Node(' ',0, false,
new Node(' ',0, false,
NULL,
new Node('4',KEY_SHIFT, true, NULL, NULL)),
NULL),
new Node('3',0, true, NULL, NULL))),
new Node('u',0, true,
new Node('f',0, true, NULL, NULL),
new Node(' ',0, false,
new Node(' ',0, false,
new Node('?',KEY_SHIFT, true, NULL, NULL),
new Node('_',KEY_SHIFT, true, NULL, NULL)),
new Node('2',0, true, NULL, NULL)))),
new Node('a',0, true,
new Node('r',0, true,
new Node('l',0, true,
new Node('7',KEY_SHIFT, true, NULL, NULL), /* & */
new Node(' ',0, false,
new Node('\'',KEY_SHIFT, true, NULL, NULL), /* " */
NULL)),
new Node(' ',0, false,
new Node('+',KEY_SHIFT, true,
NULL,
new Node('.',0, true, NULL, NULL)),
NULL)),
new Node('w',0, true,
new Node('p',0, true,
NULL,
new Node(' ',0, false,
new Node(34,KEY_SHIFT, true, NULL, NULL), /*@*/
NULL)),
new Node('j',0, true,
NULL,
new Node('1',0, true,
new Node('\'',0, true, NULL, NULL),
NULL))))),
new Node('t',0, true,
new Node('n',0, true,
new Node('d',0, true,
new Node('b',0, true,
new Node('6',0, true,
NULL,
new Node('-',0, true, NULL, NULL)),
new Node('=',0, true, NULL, NULL)),
new Node('x',0, true,
new Node('/',0, true, NULL, NULL),
NULL)),
new Node('k',0, true,
new Node('c',0, true,
NULL,
new Node(' ',0, false,
new Node(';',0, true, NULL, NULL),
new Node('1',KEY_SHIFT, true, NULL, NULL))),
new Node('y',0, true,
new Node('9',KEY_SHIFT, true,
NULL,
new Node('0',KEY_SHIFT, true, NULL, NULL)),
NULL))),
new Node('m',0, true,
new Node('g',0, true,
new Node('z',0, true,
new Node('7',0, true, NULL, NULL),
new Node(' ',0, false,
NULL,
new Node(',',0, true, NULL, NULL))),
new Node('q',0, true, NULL, NULL)),
new Node('o',0, true,
new Node(' ',0, false,
new Node('8',0, true,
new Node(';',KEY_SHIFT, true, NULL, NULL),
NULL),
NULL),
new Node(' ',0, false,
new Node('9',0, true, NULL, NULL),
new Node('0',0, true, NULL, NULL))))));
superHead = head;
redled = 0;
greenled = 1;
blueled = 1;
t.start();
timerTime = t.read();
float tempTime;
while(1) {
// Non-character buttons, tried with interrupts but would send multiple keys, not sure why
if (space == 1) {
spaceActive = false;
} else if ((space == 0) && !spaceActive) {
spaceActive = true;
keyboard.keyCode(' ');
head = superHead;
timerTime = t.read();
continue;
}
if (enter == 1) {
enterActive = false;
} else if ((enter == 0) && !enterActive) {
enterActive = true;
keyboard.printf("\r\n");
head = superHead;
timerTime = t.read();
continue;
}
if (backspace == 1) {
backspaceActive = false;
} else if ((backspace == 0) && !backspaceActive) {
backspaceActive = true;
keyboard.keyCode(8);
head = superHead;
timerTime = t.read();
continue;
}
if (capsLock == 1) {
capsLockActive = false;
} else if ((capsLock == 0) && !capsLockActive) {
capsLockActive = true;
keyboard.keyCode(KEY_CAPS_LOCK);
head = superHead;
timerTime = t.read();
blueled = 1 - blueled;
capsled = 1- capsled;
continue;
}
// press a button, advance the tree state
if ((dit == 0) && !ditActive){
ditActive = true;
head = head->left;
timerTime = t.read();
} else if ((dah == 0) && !dahActive) {
dahActive = true;
head = head->right;
timerTime = t.read();
} else {
if (dit == 1) {
ditActive = false;
}
if (dah == 1) {
dahActive = false;
}
}
// after a certain delay, send the key, reset the tree
tempTime = t.read();
if ((tempTime - timerTime) > 0.3f) {
if (head->display) {
keyboard.keyCode(head->character, head->modifier);
redled = 1-redled;
greenled = 1-greenled;
}
timerTime = t.read();
head = superHead;
}
}
}