// *** This is for Fujitsu Leaf Spring Board *** #include const int bounceDelay = 125; // Row Wires (1 - 14) Bounce wire1 = Bounce(0, bounceDelay); Bounce wire2 = Bounce(1, bounceDelay); Bounce wire3 = Bounce(2, bounceDelay); Bounce wire4 = Bounce(3, bounceDelay); Bounce wire5 = Bounce(4, bounceDelay); Bounce wire6 = Bounce(17, bounceDelay); Bounce wire7 = Bounce(26, bounceDelay); Bounce wire8 = Bounce(25, bounceDelay); Bounce wire9 = Bounce(24, bounceDelay); Bounce wire10 = Bounce(23, bounceDelay); Bounce wire11 = Bounce(22, bounceDelay); Bounce wire12 = Bounce(21, bounceDelay); Bounce wire13 = Bounce(20, bounceDelay); Bounce wire14 = Bounce(19, bounceDelay); //Column Wires (15 - 22) Bounce wire15 = Bounce(18, bounceDelay); Bounce wire16 = Bounce(38, bounceDelay); Bounce wire17 = Bounce(39, bounceDelay); Bounce wire18 = Bounce(40, bounceDelay); Bounce wire19 = Bounce(41, bounceDelay); Bounce wire20 = Bounce(42, bounceDelay); Bounce wire21 = Bounce(43, bounceDelay); Bounce wire22 = Bounce(44, bounceDelay); boolean rShft; boolean lShft; boolean ctrlNoise; // for ctrl single click boolean lshftNoise; boolean rshftNoise; boolean fntNoise; boolean newLockPress; //for ALPHA LOCK //ROWS are OUTPUT, COLUMNS are INPUT (Rows Wires 1 - 14; Columns Wires 15-22) void setup(){ pinMode(0, OUTPUT); // Wire # 1 pinMode(1, OUTPUT); // 2 pinMode(2, OUTPUT); // 3 pinMode(3, OUTPUT); // 4 pinMode(4, OUTPUT); // 5 pinMode(17, OUTPUT); // 6 pinMode(26, OUTPUT); // 7 pinMode(25, OUTPUT); // 8 pinMode(24, OUTPUT); // 9 pinMode(23, OUTPUT); // 10 pinMode(22, OUTPUT); // 11 pinMode(21, OUTPUT); // 12 pinMode(20, OUTPUT); // 13 pinMode(19, OUTPUT); // 14 pinMode(18, INPUT_PULLUP); // 15 pinMode(38, INPUT_PULLUP); // 16 pinMode(39, INPUT_PULLUP); // 17 pinMode(40, INPUT_PULLUP); // 18 pinMode(41, INPUT_PULLUP); // 19 pinMode(42, INPUT_PULLUP); // 20 pinMode(43, INPUT_PULLUP); // 21 pinMode(44, INPUT_PULLUP); // 22 //Set initial subroutine boolean values newLockPress = true; ctrlNoise = true; lshftNoise = true; rshftNoise = true; fntNoise = true; } // ROW 1 - 14 are WIRE 1-14 and PIN 0,1,2,3,4,17,26,25,24,23,22,21,20,19 // COLUMN A - H are WIRE 15 - 22 and PIN 18,38,39,40,41,42,43,44 void loop(){ // Write LOW to each OUTPUT pin (row), one at a time. // Check all INPUT pins (column) for a signal. // check for SHIFT, CTRL, FCTN, and/or ALPHA LOCK checkModifiers(); // ------------------------------------------------------------------------------ Wire 1 @ PIN 0 digitalWrite(0, LOW); wire15.update(); wire16.update(); wire17.update(); wire18.update(); wire19.update(); wire20.update(); wire21.update(); wire22.update(); // ----------------------- KP 8 if(wire15.fallingEdge()){ Keyboard.press(KEYPAD_8); delay(100); Keyboard.release(KEYPAD_8); beep(); } // ----------------------- TAB if(wire16.fallingEdge()){ Keyboard.press(KEY_TAB); delay(100); Keyboard.release(KEY_TAB); beep(); } // ----------------------- ESC if(wire17.fallingEdge()){ Keyboard.press(KEY_ESC); delay(100); Keyboard.release(KEY_ESC); beep(); } // ----------------------- BREAK if(wire18.fallingEdge()){ Keyboard.press(KEY_ESC); delay(100); Keyboard.release(KEY_ESC); beep(); } // ----------------------- F1 if(wire19.fallingEdge()){ Keyboard.press(KEY_F1); delay(100); Keyboard.release(KEY_F1); beep(); } // ----------------------- SPACE if(wire20.fallingEdge()){ Keyboard.press(' '); delay(100); Keyboard.release(' '); beep(); } // ----------------------- = (KP) if(wire21.fallingEdge()){ Keyboard.press('='); delay(100); Keyboard.release('='); beep(); } // ----------------------- 9 (KP) if(wire22.fallingEdge()){ Keyboard.press(KEYPAD_9); delay(100); Keyboard.release(KEYPAD_9); beep(); } // RESET Wire 1 to HIGH digitalWrite(0, HIGH); // ---------------------------------------------------------------------------- Wire 2 @ PIN 1 digitalWrite(1, LOW); wire15.update(); wire16.update(); wire17.update(); wire18.update(); wire19.update(); wire20.update(); wire21.update(); wire22.update(); // ----------------------- F9 if(wire15.fallingEdge()){ Keyboard.press(KEY_F9); delay(100); Keyboard.release(KEY_F9); beep(); } // ----------------------- F2 if(wire16.fallingEdge()){ Keyboard.press(KEY_F2); delay(100); Keyboard.release(KEY_F2); beep(); } // ----------------------- F3 if(wire17.fallingEdge()){ Keyboard.press(KEY_F3); delay(100); Keyboard.release(KEY_F3); beep(); } // ----------------------- F4 if(wire18.fallingEdge()){ Keyboard.press(KEY_F4); delay(100); Keyboard.release(KEY_F4); beep(); } // ----------------------- F5 if(wire19.fallingEdge()){ Keyboard.press(KEY_F5); delay(100); Keyboard.release(KEY_F5); beep(); } // ----------------------- F6 if(wire20.fallingEdge()){ Keyboard.press(KEY_F6); delay(100); Keyboard.release(KEY_F6); beep(); } //------------------------- F7 if(wire21.fallingEdge()){ Keyboard.press(KEY_F7); delay(100); Keyboard.release(KEY_F7); beep(); } // ----------------------- F8 if(wire22.fallingEdge()){ Keyboard.press(KEY_F8); delay(100); Keyboard.release(KEY_F8); beep(); } //Reset Wire 2 to HIGH digitalWrite(1, HIGH); // ---------------------------------------------------------------------------- Wire 3 @ PIN 2 digitalWrite(2, LOW); wire15.update(); wire16.update(); wire17.update(); wire18.update(); wire19.update(); wire20.update(); wire21.update(); wire22.update(); // Wire15 empty on this row // ----------------------- F10 if(wire16.fallingEdge()){ Keyboard.press(KEY_F10); delay(100); Keyboard.release(KEY_F10); beep(); } // ----------------------- F11 if(wire17.fallingEdge()){ Keyboard.press(KEY_F11); delay(100); Keyboard.release(KEY_F11); beep(); } // ----------------------- F12 if(wire18.fallingEdge()){ Keyboard.press(KEY_F12); delay(100); Keyboard.release(KEY_F12); beep(); } // ----------------------- F13 (Print Screen) if(wire19.fallingEdge()){ Keyboard.press(KEY_PRINTSCREEN); delay(100); Keyboard.release(KEY_PRINTSCREEN); beep(); } // ----------------------- F14 (Scroll Lock) if(wire20.fallingEdge()){ Keyboard.press(KEY_SCROLL_LOCK); delay(100); Keyboard.release(KEY_SCROLL_LOCK); beep(); } // ----------------------- F15 (Pause) if(wire21.fallingEdge()){ Keyboard.press(KEY_PAUSE); delay(100); Keyboard.release(KEY_PAUSE); beep(); } // ----------------------- F16 (Num Lock) if(wire22.fallingEdge()){ Keyboard.press(KEY_NUM_LOCK); delay(100); Keyboard.release(KEY_NUM_LOCK); beep(); } // Reset Wire 3 to HIGH digitalWrite(2, HIGH); // -------------------------------------------------------------------------------------- Wire 4 @ PIN 3 digitalWrite(3, LOW); wire15.update(); wire16.update(); wire17.update(); wire18.update(); wire19.update(); wire20.update(); wire21.update(); wire22.update(); // ----------------------- 8* if(wire15.fallingEdge()){ Keyboard.press('8'); delay(100); Keyboard.release('8'); beep(); } // ----------------------- 1! if(wire16.fallingEdge()){ Keyboard.press('1'); delay(100); Keyboard.release('1'); beep(); } // ----------------------- 2@ if(wire17.fallingEdge()){ Keyboard.press('2'); delay(100); Keyboard.release('2'); beep(); } // ----------------------- 3# if(wire18.fallingEdge()){ Keyboard.press('3'); delay(100); Keyboard.release('3'); beep(); } // ----------------------- 4$ if(wire19.fallingEdge()){ Keyboard.press('4'); delay(100); Keyboard.release('4'); beep(); } // ----------------------- 5% if(wire20.fallingEdge()){ Keyboard.press('5'); delay(100); Keyboard.release('5'); beep(); } // ------------------------- 6 if(wire21.fallingEdge()){ Keyboard.press('6'); delay(100); Keyboard.release('6'); beep(); } // ----------------------- 7& if(wire22.fallingEdge()){ Keyboard.press('7'); delay(100); Keyboard.release('7'); beep(); } // Reset Wire4 to HIGH digitalWrite(3, HIGH); // --------------------------------------------------------------------------------------- Wire 5 @ PIN 4 digitalWrite(4, LOW); // wire15.update(); wire16.update(); wire17.update(); wire18.update(); wire19.update(); wire20.update(); wire21.update(); wire22.update(); // Wire15 RIGHT SHIFT IN CHECK MODIFIERS SUBROUTINE // ----------------------- 9( if(wire16.fallingEdge()){ Keyboard.press('9'); delay(100); Keyboard.release('9'); beep(); } // ----------------------- 0) if(wire17.fallingEdge()){ Keyboard.press('0'); delay(100); Keyboard.release('0'); beep(); } // ----------------------- -_ if(wire18.fallingEdge()){ Keyboard.press('-'); delay(100); Keyboard.release('-'); beep(); } // ----------------------- =+ if(wire19.fallingEdge()){ Keyboard.press('='); delay(100); Keyboard.release('='); beep(); } // ----------------------- `~ if(wire20.fallingEdge()){ Keyboard.press('`'); delay(100); Keyboard.release('`'); beep(); } // ----------------------- INS if(wire21.fallingEdge()){ Keyboard.press(KEY_INSERT); delay(100); Keyboard.release(KEY_INSERT); beep(); } //------------------------ CLS if(wire22.fallingEdge()){ Keyboard.press(KEY_BACKSPACE); delay(100); Keyboard.release(KEY_BACKSPACE); beep(); } // Reset Wire5 to HIGH digitalWrite(4, HIGH); // ------------------------------------------------------------------------------ Wire 6 @ PIN 17 digitalWrite(17, LOW); wire15.update(); wire16.update(); wire17.update(); wire18.update(); wire19.update(); wire20.update(); wire21.update(); wire22.update(); // ------------------------ Wire 15 @ PIN 18: "Alt" if ((digitalRead(18) == LOW)){ //Reading column on PIN 18 Wire15) ***** keep ALT pressed until digitalRead of key is no longer 0 (LOW) ***** Keyboard.press(KEY_LEFT_ALT); if(fntNoise == true){ // ***** Single click for ALT ***** beep(); fntNoise = false; } } else { Keyboard.release(KEY_LEFT_ALT); fntNoise = true; } // ----------------------- * KP if(wire16.fallingEdge()){ Keyboard.press(KEYPAD_ASTERIX); delay(100); Keyboard.release(KEYPAD_ASTERIX); beep(); } // ----------------------- 1 KP if(wire17.fallingEdge()){ Keyboard.press(KEYPAD_1); delay(100); Keyboard.release(KEYPAD_1); beep(); } // ----------------------- 2 KP if(wire18.fallingEdge()){ Keyboard.press(KEYPAD_2); delay(100); Keyboard.release(KEYPAD_2); beep(); } // ----------------------- 3 KP if(wire19.fallingEdge()){ Keyboard.press(KEYPAD_3); delay(100); Keyboard.release(KEYPAD_3); beep(); } // -----------------------RETURN (KP) if(wire20.fallingEdge()){ Keyboard.press(KEYPAD_ENTER); delay(100); Keyboard.release(KEYPAD_ENTER); beep(); } // ----------------------- 0 KP if(wire21.fallingEdge()){ Keyboard.press(KEYPAD_0); delay(100); Keyboard.release(KEYPAD_0); beep(); } // ----------------------- . KP if(wire22.fallingEdge()){ Keyboard.press(KEYPAD_PERIOD); delay(100); Keyboard.release(KEYPAD_PERIOD); beep(); } // RESET Wire 6 to HIGH digitalWrite(17, HIGH); // ------------------------------------------------------------------------------ Wire 7 @ PIN 26 digitalWrite(18, HIGH); digitalWrite(26, LOW); wire15.update(); wire16.update(); wire17.update(); wire18.update(); wire19.update(); wire20.update(); wire21.update(); wire22.update(); // ----------------------- KP / if(wire15.fallingEdge()){ Keyboard.press(KEYPAD_SLASH); delay(100); Keyboard.release(KEYPAD_SLASH); beep(); } // Wire16 empty thid row // Wire17 empty this row // Wire18 this row empty this row //Wire19 empty this row // Wire20 empty this row // ----------------------- - (KP) if(wire21.fallingEdge()){ Keyboard.press(KEYPAD_MINUS); delay(100); Keyboard.release(KEYPAD_MINUS); beep(); } // ----------------------- + (KP) if(wire22.fallingEdge()){ Keyboard.press(KEYPAD_PLUS); delay(100); Keyboard.release(KEYPAD_PLUS); beep(); } // RESET Wire 7 to HIGH digitalWrite(26, HIGH); // ------------------------------------------------------------------------------ Wire 8 @ PIN 25 digitalWrite(25, LOW); wire15.update(); wire16.update(); wire17.update(); wire18.update(); wire19.update(); wire20.update(); wire21.update(); wire22.update(); // ----------------------- i if(wire15.fallingEdge()){ Keyboard.press('i'); delay(100); Keyboard.release('i'); beep(); } // ----------------------- q if(wire16.fallingEdge()){ Keyboard.press('q'); delay(100); Keyboard.release('q'); beep(); } // ----------------------- w if(wire17.fallingEdge()){ Keyboard.press('w'); delay(100); Keyboard.release('w'); beep(); } // ----------------------- e if(wire18.fallingEdge()){ Keyboard.press('e'); delay(100); Keyboard.release('e'); beep(); } // ----------------------- r if(wire19.fallingEdge()){ Keyboard.press('r'); delay(100); Keyboard.release('r'); beep(); } // ----------------------- t if(wire20.fallingEdge()){ Keyboard.press('t'); delay(100); Keyboard.release('t'); beep(); } // ----------------------- y if(wire21.fallingEdge()){ Keyboard.press('y'); delay(100); Keyboard.release('y'); beep(); } // ----------------------- u if(wire22.fallingEdge()){ Keyboard.press('u'); delay(100); Keyboard.release('u'); beep(); } // RESET Wire 8 to HIGH digitalWrite(25, HIGH); // ------------------------------------------------------------------------------ Wire 9 PIN 24 digitalWrite(24, LOW); wire15.update(); wire16.update(); wire17.update(); wire18.update(); wire19.update(); wire20.update(); wire21.update(); wire22.update(); // Wire15 caps lock addressed in checkModifiers subroutine // ----------------------- Caps Lock if(wire15.fallingEdge()){ Keyboard.press(KEY_CAPS_LOCK); delay(100); Keyboard.release(KEY_CAPS_LOCK); beep(); } // ----------------------- o if(wire16.fallingEdge()){ Keyboard.press('o'); delay(100); Keyboard.release('o'); beep(); } // ----------------------- p if(wire17.fallingEdge()){ Keyboard.press('p'); delay(100); Keyboard.release('p'); beep(); } // ----------------------- [ if(wire18.fallingEdge()){ Keyboard.press('['); delay(100); Keyboard.release('['); beep(); } // ----------------------- ] if(wire19.fallingEdge()){ Keyboard.press(']'); delay(100); Keyboard.release(']'); beep(); } // ----------------------- BACKSPACE if(wire20.fallingEdge()){ Keyboard.press(KEY_BACKSPACE); delay(100); Keyboard.release(KEY_BACKSPACE); beep(); } // ----------------------- EL if(wire21.fallingEdge()){ Keyboard.press(KEY_PAGE_DOWN); delay(100); Keyboard.release(KEY_PAGE_DOWN); beep(); } // ----------------------- DUP if(wire22.fallingEdge()){ Keyboard.press(KEY_PAGE_UP); delay(100); Keyboard.release(KEY_PAGE_UP); beep(); } // RESET Wire 9 to HIGH digitalWrite(24, HIGH); // ------------------------------------------------------------------------------ Wire 10 @ PIN 23 digitalWrite(23, LOW); wire15.update(); wire16.update(); wire17.update(); wire18.update(); wire19.update(); wire20.update(); wire21.update(); wire22.update(); // ----------------------- k if(wire15.fallingEdge()){ Keyboard.press('k'); delay(100); Keyboard.release('k'); beep(); } // ----------------------- a if(wire16.fallingEdge()){ Keyboard.press('a'); delay(100); Keyboard.release('a'); beep(); } // ----------------------- s if(wire17.fallingEdge()){ Keyboard.press('s'); delay(100); Keyboard.release('s'); beep(); } // ----------------------- d if(wire18.fallingEdge()){ Keyboard.press('d'); delay(100); Keyboard.release('d'); beep(); } // ----------------------- f if(wire19.fallingEdge()){ Keyboard.press('f'); delay(100); Keyboard.release('f'); beep(); } // ----------------------- g if(wire20.fallingEdge()){ Keyboard.press('g'); delay(100); Keyboard.release('g'); beep(); } // ----------------------- h if(wire21.fallingEdge()){ Keyboard.press('h'); delay(100); Keyboard.release('h'); beep(); } // ----------------------- j) if(wire22.fallingEdge()){ Keyboard.press('j'); delay(100); Keyboard.release('j'); beep(); } // RESET Wire 10 to HIGH digitalWrite(23, HIGH); // ------------------------------------------------------------------------------ Wire 11 @ PIN 22 digitalWrite(22, LOW); wire15.update(); wire16.update(); wire17.update(); wire18.update(); wire19.update(); wire20.update(); wire21.update(); wire22.update(); // Wire15 CTRL addressed in checkModifiers subroutine // ----------------------- L if(wire16.fallingEdge()){ Keyboard.press('l'); delay(100); Keyboard.release('l'); beep(); } // ----------------------- ;: if(wire17.fallingEdge()){ Keyboard.press(';'); delay(100); Keyboard.release(';'); beep(); } // ----------------------- '" if(wire18.fallingEdge()){ Keyboard.press('\''); delay(100); Keyboard.release('\''); beep(); } // ----------------------- \| if(wire19.fallingEdge()){ Keyboard.press('\\'); delay(100); Keyboard.release('\\'); beep(); } // ----------------------- RETURN (MAIN) if(wire20.fallingEdge()){ Keyboard.press(KEY_RETURN); delay(100); Keyboard.release(KEY_RETURN); beep(); } // ----------------------- DEL if(wire21.fallingEdge()){ Keyboard.press(KEY_DELETE); delay(100); Keyboard.release(KEY_DELETE); beep(); } // ----------------------- HOME if(wire22.fallingEdge()){ Keyboard.press(KEY_HOME); delay(100); Keyboard.release(KEY_HOME); beep(); } // RESET Wire 11 to HIGH digitalWrite(22, HIGH); // ------------------------------------------------------------------------------ Wire 12 @ PIN 21 digitalWrite(21, LOW); wire15.update(); wire16.update(); wire17.update(); wire18.update(); wire19.update(); wire20.update(); wire21.update(); wire22.update(); // ----------------------- GRAPH if(wire15.fallingEdge()){ Keyboard.press(KEY_END); delay(100); Keyboard.release(KEY_END); beep(); } // ----------------------- 7 KP if(wire16.fallingEdge()){ Keyboard.press(KEYPAD_7); delay(100); Keyboard.release(KEYPAD_7); beep(); } // ----------------------- 4 KP if(wire17.fallingEdge()){ Keyboard.press(KEYPAD_4); delay(100); Keyboard.release(KEYPAD_4); beep(); } // ----------------------- 5 KP if(wire18.fallingEdge()){ Keyboard.press(KEYPAD_5); delay(100); Keyboard.release(KEYPAD_5); beep(); } // ----------------------- 6 KP if(wire19.fallingEdge()){ Keyboard.press(KEYPAD_6); delay(100); Keyboard.release(KEYPAD_6); beep(); } // ----------------------- , KP if(wire20.fallingEdge()){ Keyboard.press(','); delay(100); Keyboard.release(','); beep(); } // ----------------------- LEFT ARROW if(wire21.fallingEdge()){ Keyboard.press(KEY_LEFT_ARROW); delay(100); Keyboard.release(KEY_LEFT_ARROW); beep(); } // ----------------------- RIGHT ARROW if(wire22.fallingEdge()){ Keyboard.press(KEY_RIGHT_ARROW); delay(100); Keyboard.release(KEY_RIGHT_ARROW); beep(); } // RESET Wire 12 to HIGH digitalWrite(21, HIGH); // ------------------------------------------------------------------------------ Wire 13 @ PIN 20 digitalWrite(20, LOW); wire15.update(); wire16.update(); wire17.update(); wire18.update(); wire19.update(); wire20.update(); wire21.update(); wire22.update(); // ----------------------- , < if(wire15.fallingEdge()){ Keyboard.press(','); delay(100); Keyboard.release(','); beep(); } // ----------------------- z if(wire16.fallingEdge()){ Keyboard.press('z'); delay(100); Keyboard.release('z'); beep(); } // ----------------------- x if(wire17.fallingEdge()){ Keyboard.press('x'); delay(100); Keyboard.release('x'); beep(); } // ----------------------- c if(wire18.fallingEdge()){ Keyboard.press('c'); delay(100); Keyboard.release('c'); beep(); } // ----------------------- v if(wire19.fallingEdge()){ Keyboard.press('v'); delay(100); Keyboard.release('v'); beep(); } // ----------------------- b if(wire20.fallingEdge()){ Keyboard.press('b'); delay(100); Keyboard.release('b'); beep(); } // ----------------------- n if(wire21.fallingEdge()){ Keyboard.press('n'); delay(100); Keyboard.release('n'); beep(); } // ----------------------- m if(wire22.fallingEdge()){ Keyboard.press('m'); delay(100); Keyboard.release('m'); beep(); } // RESET Wire 13 to HIGH digitalWrite(20, HIGH); // ------------------------------------------------------------------------------ Wire 14 @ PIN 19 digitalWrite(19, LOW); wire15.update(); wire16.update(); wire17.update(); wire18.update(); wire19.update(); wire20.update(); wire21.update(); wire22.update(); // Wire15 LEFT SHIFT addressed in checkModifiers subroutine // ----------------------- .> if(wire16.fallingEdge()){ Keyboard.press('.'); delay(100); Keyboard.release('.'); beep(); } // ----------------------- /? if(wire17.fallingEdge()){ Keyboard.press('/'); delay(100); Keyboard.release('/'); beep(); } // ----------------------- 'blank' if(wire18.fallingEdge()){ Keyboard.press(KEY_RETURN); delay(100); Keyboard.release(KEY_RETURN); beep(); } // Wire19 empty on this row // Wire20 empty on this row // ----------------------- UP ARROW if(wire21.fallingEdge()){ Keyboard.press(KEY_UP_ARROW); delay(100); Keyboard.release(KEY_UP_ARROW); beep(); } // ----------------------- DOWN ARROW if(wire22.fallingEdge()){ Keyboard.press(KEY_DOWN_ARROW); delay(100); Keyboard.release(KEY_DOWN_ARROW); beep(); } // RESET Wire 14 to HIGH digitalWrite(19, HIGH); } //------------------------------------------------ MODIFIER KEYS void checkModifiers(){ // ------------------------ Wire 14 PIN 19: L SHIFT digitalWrite(19, LOW); //PIN 19 (Wire14) wire9.update(); wire22.update(); if ((digitalRead(18) == 0)){ // Reading PIN18 (Wire15) ***** Long press LShift ***** Keyboard.press(KEY_LEFT_SHIFT); lShft = true; if(lshftNoise == true){ beep(); lshftNoise = false; } } else { Keyboard.release(KEY_LEFT_SHIFT); lShft = false; lshftNoise = true; } digitalWrite(19, HIGH); digitalWrite(18,HIGH); //reset column digitalWrite(4, LOW); // Wire 5 pin 4 wire15.update(); if ((digitalRead(18) == 0)){ // Reading PIN18 (Wire15) ***** Long press RShift) ***** LShift won't work now in keychecks still using boolean "shft" check due to "shft = false" after Keyboard.relase(KEY_RIGHT_SHIFT) ***** Keyboard.press(KEY_RIGHT_SHIFT); rShft = true; if(rshftNoise == true){ beep(); rshftNoise = false; } } else { Keyboard.release(KEY_RIGHT_SHIFT); rShft = false; rshftNoise = true; } digitalWrite(4, HIGH); digitalWrite(18, HIGH); // try resetting column to high wire15.update(); digitalWrite(24, HIGH); // ------------------------ Wire 11 @ PIN 22: ctrl digitalWrite(22, LOW); wire15.update(); if(digitalRead(18) == 0){ //Reading PIN18 (Wire15) ***** keep CTRL pressed until digitalRead of key is no longer 0 (LOW) ***** Keyboard.press(KEY_LEFT_CTRL); if(ctrlNoise == true){ // ***** Single click for CTRL ***** beep(); ctrlNoise = false; } } else { Keyboard.release(KEY_LEFT_CTRL); ctrlNoise = true; } digitalWrite(22, HIGH); } void beep(){ tone(13, 500, 5); //(pin,freq,duration) }