712 lines
31 KiB
C++
712 lines
31 KiB
C++
/* Copyright 2022 Frank Adams
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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// This software creates a USB keyboard from a Gridcase3 keyboard.
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//
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// Revision History
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// Initial Release Oct 31, 2022
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// Rev 1 November 1, 2022 Fixed bad control key location in matrix
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// Rev 2 November 2, 2022 Moved signal from I/O 15 to I/O 24
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// Rev 3 November 3, 2022 Added Shift and Fig Shift variables. Added Media audio keys
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// Rev 4 November 4, 2022 Changed to alt codes for ,=
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// Rev 5 November 4, 2022 Removed alt codes for ,= and instead removed shift before sending keypress, then put back shift. Added TAB
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//
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#define MODIFIERKEY_FN 0x8f // give Fn key a fake HID code
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#define MODIFIERKEY_FIGSHIFT KEY_F13 // give Fig Shift key an unused code
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//
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//
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const byte rows_max = 12; // sets the number of rows in the matrix
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const byte cols_max = 10; // sets the number of columns in the matrix
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//
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// Load the normal key matrix with the Teensyduino key names
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// described at www.pjrc.com/teensy/td_keyboard.html
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// A zero indicates no normal key at that location.
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int normal[rows_max][cols_max] = {
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{0,0,0,0,0,0,0,0,0,0},
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{0,0,0,KEY_DOWN,KEY_RIGHT,KEY_UP,KEY_END,KEY_F11,KEY_F10,KEY_F12},
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{KEY_ESC,0,KEY_1,KEY_Q,KEY_2,KEY_F1,KEY_3,KEY_F2,0,KEY_SPACE},
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{KEY_EQUAL,0,KEY_TILDE,KEY_ENTER,KEY_LEFT,KEY_BACKSPACE,KEY_PRINTSCREEN,KEY_PAGE_UP,KEY_9,KEY_F9},
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{KEY_MINUS,0,KEY_SLASH,KEY_PERIOD,KEY_PAGE_DOWN,KEY_L,KEY_P,KEY_0,KEY_8,KEY_F8},
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{0,0,KEY_A,KEY_Z,KEY_K,KEY_J,KEY_I,KEY_O,KEY_7,KEY_F7},
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{0,0,KEY_N,KEY_M,KEY_H,KEY_G,KEY_Y,KEY_U,KEY_6,KEY_F6},
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{0,0,KEY_V,KEY_B,KEY_F,KEY_D,KEY_R,KEY_T,KEY_5,KEY_F5},
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{0,0,KEY_X,KEY_C,KEY_S,KEY_W,KEY_E,KEY_4,KEY_F3,KEY_F4},
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{0,KEY_DELETE,0,0,0,0,0,0,0,0},
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{0,0,0,0,0,0,0,0,0,0},
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{0,0,0,0,0,0,0,0,0,0}
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};
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// Load the modifier key matrix with key names at the correct row-column location.
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// A zero indicates no modifier key at that location.
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int modifier[rows_max][cols_max] = {
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{0,MODIFIERKEY_LEFT_ALT,0,0,0,0,0,0,0,0},
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{MODIFIERKEY_FN,0,MODIFIERKEY_LEFT_CTRL,0,0,0,0,0,0,0},
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{0,0,0,0,0,0,0,0,0,0},
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{0,0,0,0,0,0,0,0,0,0},
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{0,0,0,0,0,0,0,0,0,0},
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{0,0,0,0,0,0,0,0,0,0},
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{0,0,0,0,0,0,0,0,0,0},
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{0,0,0,0,0,0,0,0,0,0},
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{0,0,0,0,0,0,0,0,0,0},
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{0,0,0,0,0,0,0,0,0,0},
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{0,MODIFIERKEY_LEFT_SHIFT,0,0,0,0,0,0,0,0},
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{0,MODIFIERKEY_FIGSHIFT,0,0,0,0,0,0,0,0}
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};
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// Load the media key matrix with Fn key names at the correct row-column location.
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// A zero indicates no media key at that location.
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int media[rows_max][cols_max] = {
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{0,0,0,0,0,0,0,0,0,0},
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{0,0,0,0,0,0,0,0,0,0},
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{0,0,0,0,0,KEY_MEDIA_MUTE,0,KEY_MEDIA_VOLUME_DEC,0,0},
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{0,0,0,0,0,0,0,0,0,0},
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{0,0,0,0,0,0,0,0,0,0},
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{0,0,0,0,0,0,0,0,0,0},
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{0,0,0,0,0,0,0,0,0,0},
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{0,0,0,0,0,0,0,0,0,0},
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{0,0,0,0,0,0,0,0,KEY_MEDIA_VOLUME_INC,0},
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{0,0,0,0,0,0,0,0,0,0},
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{0,0,0,0,0,0,0,0,0,0},
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{0,0,0,0,0,0,0,0,0,0}
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};
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// Initialize the old_key matrix with one's.
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// 1 = key not pressed, 0 = key is pressed
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boolean old_key[rows_max][cols_max] = {
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{1,1,1,1,1,1,1,1,1,1},
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{1,1,1,1,1,1,1,1,1,1},
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{1,1,1,1,1,1,1,1,1,1},
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{1,1,1,1,1,1,1,1,1,1},
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{1,1,1,1,1,1,1,1,1,1},
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{1,1,1,1,1,1,1,1,1,1},
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{1,1,1,1,1,1,1,1,1,1},
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{1,1,1,1,1,1,1,1,1,1},
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{1,1,1,1,1,1,1,1,1,1},
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{1,1,1,1,1,1,1,1,1,1},
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{1,1,1,1,1,1,1,1,1,1},
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{1,1,1,1,1,1,1,1,1,1}
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};
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//
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// Assign the Teensy I/O row numbers
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int Row_IO[rows_max] = {10,11,12,14,24,16,17,18,19,20,21,22}; // swapped 15 for 24
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//
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// Assignb the column I/O numbers
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int Col_IO[cols_max] = {0,1,2,3,4,5,6,7,8,9};
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//
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// Declare variables that will be used by functions
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boolean slots_full = LOW; // Goes high when slots 1 thru 6 contain normal keys
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//
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// slot 1 thru slot 6 hold the normal key values to be sent over USB.
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int slot1 = 0; //value of 0 means the slot is empty and can be used.
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int slot2 = 0;
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int slot3 = 0;
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int slot4 = 0;
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int slot5 = 0;
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int slot6 = 0;
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//
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int mod_shift_l = 0; // These variables are sent over USB as modifier keys.
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int mod_shift_r = 0; // Each is either set to 0 or MODIFIER_ ...
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int mod_ctrl_l = 0;
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int mod_ctrl_r = 0;
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int mod_alt_l = 0;
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int mod_alt_r = 0;
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int mod_gui = 0;
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//
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// Function to load the key name into the first available slot
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void load_slot(int key) {
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if (!slot1) {
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slot1 = key;
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}
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else if (!slot2) {
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slot2 = key;
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}
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else if (!slot3) {
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slot3 = key;
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}
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else if (!slot4) {
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slot4 = key;
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}
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else if (!slot5) {
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slot5 = key;
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}
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else if (!slot6) {
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slot6 = key;
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}
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if (!slot1 || !slot2 || !slot3 || !slot4 || !slot5 || !slot6) {
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slots_full = LOW; // slots are not full
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}
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else {
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slots_full = HIGH; // slots are full
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}
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}
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//
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// Function to clear the slot that contains the key name
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void clear_slot(int key) {
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if (slot1 == key) {
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slot1 = 0;
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}
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else if (slot2 == key) {
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slot2 = 0;
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}
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else if (slot3 == key) {
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slot3 = 0;
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}
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else if (slot4 == key) {
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slot4 = 0;
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}
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else if (slot5 == key) {
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slot5 = 0;
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}
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else if (slot6 == key) {
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slot6 = 0;
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}
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if (!slot1 || !slot2 || !slot3 || !slot4 || !slot5 || !slot6) {
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slots_full = LOW; // slots are not full
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}
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else {
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slots_full = HIGH; // slots are full
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}
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}
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//
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// Function to load the modifier key name into the appropriate mod variable
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void load_mod(int m_key) {
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if (m_key == MODIFIERKEY_LEFT_SHIFT) {
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mod_shift_l = m_key;
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}
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else if (m_key == MODIFIERKEY_RIGHT_SHIFT) {
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mod_shift_r = m_key;
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}
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else if (m_key == MODIFIERKEY_LEFT_CTRL) {
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mod_ctrl_l = m_key;
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}
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else if (m_key == MODIFIERKEY_RIGHT_CTRL) {
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mod_ctrl_r = m_key;
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}
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else if (m_key == MODIFIERKEY_LEFT_ALT) {
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mod_alt_l = m_key;
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}
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else if (m_key == MODIFIERKEY_RIGHT_ALT) {
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mod_alt_r = m_key;
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}
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else if (m_key == MODIFIERKEY_GUI) {
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mod_gui = m_key;
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}
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}
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//
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// Function to load 0 into the appropriate mod variable
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void clear_mod(int m_key) {
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if (m_key == MODIFIERKEY_LEFT_SHIFT) {
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mod_shift_l = 0;
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}
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else if (m_key == MODIFIERKEY_RIGHT_SHIFT) {
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mod_shift_r = 0;
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}
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else if (m_key == MODIFIERKEY_LEFT_CTRL) {
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mod_ctrl_l = 0;
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}
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else if (m_key == MODIFIERKEY_RIGHT_CTRL) {
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mod_ctrl_r = 0;
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}
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else if (m_key == MODIFIERKEY_LEFT_ALT) {
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mod_alt_l = 0;
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}
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else if (m_key == MODIFIERKEY_RIGHT_ALT) {
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mod_alt_r = 0;
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}
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else if (m_key == MODIFIERKEY_GUI) {
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mod_gui = 0;
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}
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}
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//
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// Function to send the modifier keys over usb
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void send_mod() {
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Keyboard.set_modifier(mod_shift_l | mod_shift_r | mod_ctrl_l | mod_ctrl_r | mod_alt_l | mod_alt_r | mod_gui);
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Keyboard.send_now();
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}
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//
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// Function to send the normal keys in the 6 slots over usb
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void send_normals() {
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Keyboard.set_key1(slot1);
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Keyboard.set_key2(slot2);
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Keyboard.set_key3(slot3);
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Keyboard.set_key4(slot4);
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Keyboard.set_key5(slot5);
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Keyboard.set_key6(slot6);
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Keyboard.send_now();
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}
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//
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// Function to set a pin to high impedance (acts like open drain output)
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void go_z(int pin)
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{
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pinMode(pin, INPUT);
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digitalWrite(pin, HIGH);
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}
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//
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// Function to set a pin as an input with a pullup
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void go_pu(int pin)
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{
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pinMode(pin, INPUT_PULLUP);
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digitalWrite(pin, HIGH);
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}
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//
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// Function to send a pin to a logic low
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void go_0(int pin)
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{
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pinMode(pin, OUTPUT);
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digitalWrite(pin, LOW);
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}
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//
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// Function to send a pin to a logic high
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void go_1(int pin)
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{
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pinMode(pin, OUTPUT);
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digitalWrite(pin, HIGH);
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}
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//
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//----------------------------------Setup-------------------------------------------
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void setup() {
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for (int a = 0; a < cols_max; a++) { // loop thru all column pins
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go_pu(Col_IO[a]); // set each column pin as an input with a pullup
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}
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//
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for (int b = 0; b < rows_max; b++) { // loop thru all row pins
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go_z(Row_IO[b]); // set each row pin as a floating output
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}
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}
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//
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boolean Fn_pressed = HIGH; // Initialize Fn key to HIGH = "not pressed".
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boolean Figshift_pressed = HIGH; // Initialize Fig Shift key to HIGH = "not pressed".
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boolean Shift_pressed = HIGH; // Initialize Shift key to HIGH = "not pressed".
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//
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//---------------------------------Main Loop---------------------------------------------
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//
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void loop() {
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// Scan keyboard matrix with an outer loop that drives each row low and an inner loop that reads every column (with pull ups).
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// The routine looks at each key's present state (by reading the column input pin) and also the previous state from the last scan
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// that was 30msec ago. The status of a key that was just pressed or just released is sent over USB and the state is saved in the old_key matrix.
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// The keyboard keys will read as logic low if they are pressed (negative logic).
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// The old_key matrix also uses negative logic (low=pressed).
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//
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for (int x = 0; x < rows_max; x++) { // loop thru the rows
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go_0(Row_IO[x]); // Activate Row (send it low)
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delayMicroseconds(10); // give the row time to go low and settle out
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for (int y = 0; y < cols_max; y++) { // loop thru the columns
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// **********Modifier keys including the Fn special case
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if (modifier[x][y] != 0) { // check if modifier key exists at this location in the array (a non-zero value)
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if (!digitalRead(Col_IO[y]) && (old_key[x][y])) { // Read column to see if key is low (pressed) and was previously not pressed
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if ((modifier[x][y] != MODIFIERKEY_FN) && (modifier[x][y] != MODIFIERKEY_FIGSHIFT)) { // Exclude Fn and figshift modifier keys
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load_mod(modifier[x][y]); // function reads which modifier key is pressed and loads it into the appropriate mod_... variable
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send_mod(); // function sends the state of all modifier keys over usb including the one that just got pressed
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old_key[x][y] = LOW; // Save state of key as "pressed"
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if (modifier[x][y] == MODIFIERKEY_LEFT_SHIFT) {
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Shift_pressed = LOW; // shift status variable is active low
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}
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}
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else if (modifier[x][y] == MODIFIERKEY_FN) { // Fn is pressed
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Fn_pressed = LOW; // Fn status variable is active low
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old_key[x][y] = LOW; // old_key state is "pressed" (active low)
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}
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else { // Figshift is pressed
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Figshift_pressed = LOW; // FigShift status variable is active low
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old_key[x][y] = LOW; // old_key state is "pressed" (active low)
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}
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}
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else if (digitalRead(Col_IO[y]) && (!old_key[x][y])) { //check if key is not pressed and was previously pressed
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if ((modifier[x][y] != MODIFIERKEY_FN) && (modifier[x][y] != MODIFIERKEY_FIGSHIFT)) { // Exclude Fn and figshift modifier keys
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clear_mod(modifier[x][y]); // function reads which modifier key was released and loads 0 into the appropriate mod_... variable
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send_mod(); // function sends all mod's over usb including the one that just released
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old_key[x][y] = HIGH; // Save state of key as "not pressed"
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if (modifier[x][y] == MODIFIERKEY_LEFT_SHIFT) {
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Shift_pressed = HIGH; // shift no longer active
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}
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}
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else if (modifier[x][y] == MODIFIERKEY_FN) { // Fn is released
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Fn_pressed = HIGH; // Fn is no longer active
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old_key[x][y] = HIGH; // old_key state is "not pressed"
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}
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else { // Figshift is pressed
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Figshift_pressed = HIGH; // Figshift is no longer active
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old_key[x][y] = HIGH; // old_key state is "not pressed"
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}
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}
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}
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// ***********end of modifier section
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//
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// ***********Figure Shift in this section
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else if ((!Figshift_pressed) && (normal[x][y] != 0)) { // Figshift is active and normal array has character at this location
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if (!digitalRead(Col_IO[y]) && (old_key[x][y])) { // check if key pressed and not previously pressed
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old_key[x][y] = LOW; // Save state of key as "pressed"
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if (normal [x][y] == KEY_A) { // Figshift A
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Keyboard.press('('); // literal is sent with Keyboard.press function
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delay(5); // 5msec delay to make sure it's sent
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Keyboard.release('('); // send key release
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}
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else if (normal [x][y] == KEY_B) { // Figshift B
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// *******Windows PC Alt Code sequence to give a ¥ is Alt 157*******************************
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Keyboard.press(MODIFIERKEY_RIGHT_ALT); // Push and hold right Alt
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delay(5);
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Keyboard.press(KEYPAD_1); // Push 1
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delay(5);
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Keyboard.release(KEYPAD_1); // Release 1
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delay(5);
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Keyboard.press(KEYPAD_5); // Push 5
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delay(5);
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Keyboard.release(KEYPAD_5); // Release 5
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delay(5);
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Keyboard.press(KEYPAD_7); // Push 7
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delay(5);
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Keyboard.release(KEYPAD_7); // Release 7
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delay(5);
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Keyboard.release(MODIFIERKEY_RIGHT_ALT); // Release right Alt
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delay(5);
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}
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// No Figshift C
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else if (normal [x][y] == KEY_D) { // Figshift D
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Keyboard.press('!'); // literal is sent with Keyboard.press function
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delay(5); // 5msec delay to make sure it's sent
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Keyboard.release('!'); // send key release
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}
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else if (normal [x][y] == KEY_E) { // Figshift E
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Keyboard.press('}'); // literal is sent with Keyboard.press function
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delay(5); // 5msec delay to make sure it's sent
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Keyboard.release('}'); // send key release
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}
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else if (normal [x][y] == KEY_F) { // Figshift F
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Keyboard.press(':'); // literal is sent with Keyboard.press function
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delay(5); // 5msec delay to make sure it's sent
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Keyboard.release(':'); // send key release
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}
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else if (normal [x][y] == KEY_G) { // Figshift G
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Keyboard.press(';'); // literal is sent with Keyboard.press function
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delay(5); // 5msec delay to make sure it's sent
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Keyboard.release(';'); // send key release
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}
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else if (normal [x][y] == KEY_H) { // Figshift H
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// *******Windows PC Alt Code sequence to give a ' is Alt 39*******couldn't use literal (''')
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Keyboard.press(MODIFIERKEY_RIGHT_ALT); // Push and hold right Alt
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delay(5);
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Keyboard.press(KEYPAD_3); // Push 3
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delay(5);
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Keyboard.release(KEYPAD_3); // Release 3
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delay(5);
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Keyboard.press(KEYPAD_9); // Push 9
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delay(5);
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Keyboard.release(KEYPAD_9); // Release 9
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delay(5);
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Keyboard.release(MODIFIERKEY_RIGHT_ALT); // Release right Alt
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delay(5);
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}
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else if (normal [x][y] == KEY_I) { // Figshift I
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Keyboard.press('>'); // literal is sent with Keyboard.press function
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delay(5); // 5msec delay to make sure it's sent
|
|
Keyboard.release('>'); // send key release
|
|
}
|
|
else if (normal [x][y] == KEY_J) { // Figshift J
|
|
Keyboard.press('"'); // literal is sent with Keyboard.press function
|
|
delay(5); // 5msec delay to make sure it's sent
|
|
Keyboard.release('"'); // send key release
|
|
}
|
|
else if (normal [x][y] == KEY_K) { // Figshift K
|
|
Keyboard.press('@'); // literal is sent with Keyboard.press function
|
|
delay(5); // 5msec delay to make sure it's sent
|
|
Keyboard.release('@'); // send key release
|
|
}
|
|
else if (normal [x][y] == KEY_L) { // Figshift L
|
|
Keyboard.press('&'); // literal is sent with Keyboard.press function
|
|
delay(5); // 5msec delay to make sure it's sent
|
|
Keyboard.release('&'); // send key release
|
|
}
|
|
else if (normal [x][y] == KEY_M) { // Figshift M
|
|
Keyboard.press('$'); // literal is sent with Keyboard.press function
|
|
delay(5); // 5msec delay to make sure it's sent
|
|
Keyboard.release('$'); // send key release
|
|
}
|
|
else if (normal [x][y] == KEY_N) { // Figshift N
|
|
// *******Windows PC Alt Code sequence to give a £ is Alt 156*******************************
|
|
Keyboard.press(MODIFIERKEY_RIGHT_ALT); // Push and hold right Alt
|
|
delay(5);
|
|
Keyboard.press(KEYPAD_1); // Push 1
|
|
delay(5);
|
|
Keyboard.release(KEYPAD_1); // Release 1
|
|
delay(5);
|
|
Keyboard.press(KEYPAD_5); // Push 5
|
|
delay(5);
|
|
Keyboard.release(KEYPAD_5); // Release 5
|
|
delay(5);
|
|
Keyboard.press(KEYPAD_6); // Push 6
|
|
delay(5);
|
|
Keyboard.release(KEYPAD_6); // Release 6
|
|
delay(5);
|
|
Keyboard.release(MODIFIERKEY_RIGHT_ALT); // Release right Alt
|
|
delay(5);
|
|
}
|
|
else if (normal [x][y] == KEY_O) { // Figshift O
|
|
Keyboard.press('x'); // literal is sent with Keyboard.press function
|
|
delay(5); // 5msec delay to make sure it's sent
|
|
Keyboard.release('x'); // send key release
|
|
}
|
|
else if (normal [x][y] == KEY_P) { // Figshift P
|
|
// *******Windows PC Alt Code sequence to give a ÷ is Alt 246*******************************
|
|
Keyboard.press(MODIFIERKEY_RIGHT_ALT); // Push and hold right Alt
|
|
delay(5);
|
|
Keyboard.press(KEYPAD_2); // Push 2
|
|
delay(5);
|
|
Keyboard.release(KEYPAD_2); // Release 2
|
|
delay(5);
|
|
Keyboard.press(KEYPAD_4); // Push 4
|
|
delay(5);
|
|
Keyboard.release(KEYPAD_4); // Release 4
|
|
delay(5);
|
|
Keyboard.press(KEYPAD_6); // Push 6
|
|
delay(5);
|
|
Keyboard.release(KEYPAD_6); // Release 6
|
|
delay(5);
|
|
Keyboard.release(MODIFIERKEY_RIGHT_ALT); // Release right Alt
|
|
delay(5);
|
|
}
|
|
else if (normal [x][y] == KEY_Q) { // Figshift Q
|
|
Keyboard.press('?'); // literal is sent with Keyboard.press function
|
|
delay(5); // 5msec delay to make sure it's sent
|
|
Keyboard.release('?'); // send key release
|
|
}
|
|
else if (normal [x][y] == KEY_R) { // Figshift R
|
|
Keyboard.press('*'); // literal is sent with Keyboard.press function
|
|
delay(5); // 5msec delay to make sure it's sent
|
|
Keyboard.release('*'); // send key release
|
|
}
|
|
else if (normal [x][y] == KEY_S) { // Figshift S
|
|
Keyboard.press(')'); // literal is sent with Keyboard.press function
|
|
delay(5); // 5msec delay to make sure it's sent
|
|
Keyboard.release(')'); // send key release
|
|
}
|
|
else if (normal [x][y] == KEY_T) { // Figshift T
|
|
Keyboard.press('^'); // literal is sent with Keyboard.press function
|
|
delay(5); // 5msec delay to make sure it's sent
|
|
Keyboard.release('^'); // send key release
|
|
}
|
|
else if (normal [x][y] == KEY_U) { // Figshift U
|
|
Keyboard.press('<'); // literal is sent with Keyboard.press function
|
|
delay(5); // 5msec delay to make sure it's sent
|
|
Keyboard.release('<'); // send key release
|
|
}
|
|
// No Figshift V
|
|
else if (normal [x][y] == KEY_W) { // Figshift W
|
|
Keyboard.press('{'); // literal is sent with Keyboard.press function
|
|
delay(5); // 5msec delay to make sure it's sent
|
|
Keyboard.release('{'); // send key release
|
|
}
|
|
else if (normal [x][y] == KEY_X) { // Figshift X
|
|
Keyboard.press(']'); // literal is sent with Keyboard.press function
|
|
delay(5); // 5msec delay to make sure it's sent
|
|
Keyboard.release(']'); // send key release
|
|
}
|
|
else if (normal [x][y] == KEY_Y) { // Figshift Y
|
|
Keyboard.press('#'); // literal is sent with Keyboard.press function
|
|
delay(5); // 5msec delay to make sure it's sent
|
|
Keyboard.release('#'); // send key release
|
|
}
|
|
else if (normal [x][y] == KEY_Z) { // Figshift Z
|
|
Keyboard.press('['); // literal is sent with Keyboard.press function
|
|
delay(5); // 5msec delay to make sure it's sent
|
|
Keyboard.release('['); // send key release
|
|
}
|
|
}
|
|
}
|
|
// End of Figshift keys
|
|
// ***********Normal keys and media keys in this section
|
|
else if ((normal[x][y] != 0) || (media[x][y] != 0)) { // check if normal or media key exists at this location in the array
|
|
if (!digitalRead(Col_IO[y]) && (old_key[x][y]) && (!slots_full)) { // check if key pressed and not previously pressed and slots not full
|
|
old_key[x][y] = LOW; // Save state of key as "pressed"
|
|
if (Fn_pressed) { // Fn is not pressed and normal key needs to be sent
|
|
// Pick out the special cases first
|
|
if ((normal [x][y] == KEY_EQUAL) && (Shift_pressed)) { // plus key without a shift (Send a shifted EQUAL)
|
|
Keyboard.press(MODIFIERKEY_RIGHT_SHIFT); // send a shifted equal to make a plus
|
|
Keyboard.press(KEY_EQUAL);
|
|
delay(5); // 5msec delay to make sure it's sent
|
|
Keyboard.release(KEY_EQUAL);
|
|
Keyboard.release(MODIFIERKEY_RIGHT_SHIFT);
|
|
}
|
|
else if ((normal [x][y] == KEY_EQUAL) && (!Shift_pressed)) { // plus key with a shift = TAB
|
|
// temporarily remove the shift
|
|
clear_mod(MODIFIERKEY_LEFT_SHIFT); // function loads 0 into the mod_... variable
|
|
send_mod(); // function sends all mod's over usb including the one that just released
|
|
delay(5); // 5msec delay
|
|
Keyboard.press(KEY_TAB); // send a tab
|
|
delay(5); // 5msec delay to make sure it's sent
|
|
Keyboard.release(KEY_TAB);
|
|
delay(5); // 5msec delay
|
|
// put back the shift
|
|
load_mod(MODIFIERKEY_LEFT_SHIFT); // function loads shift into the mod_... variable
|
|
send_mod(); // function sends the state of all modifier keys over usb including the shift
|
|
}
|
|
else if ((normal [x][y] == KEY_MINUS) && (!Shift_pressed)) { // MINUS key with a shift
|
|
Keyboard.press(MODIFIERKEY_RIGHT_SHIFT); // send a shifted 5 to make a Percent
|
|
Keyboard.press(KEY_5);
|
|
delay(5); // 5msec delay to make sure it's sent
|
|
Keyboard.release(KEY_5);
|
|
Keyboard.release(MODIFIERKEY_RIGHT_SHIFT);
|
|
}
|
|
else if ((normal [x][y] == KEY_SLASH) && (!Shift_pressed)) { // Slash key with a shift to make an underscore
|
|
Keyboard.press(MODIFIERKEY_RIGHT_SHIFT); // send a shifted MINUS to make a underscore
|
|
Keyboard.press(KEY_MINUS);
|
|
delay(5); // 5msec delay to make sure it's sent
|
|
Keyboard.release(KEY_MINUS);
|
|
Keyboard.release(MODIFIERKEY_RIGHT_SHIFT);
|
|
}
|
|
else if ((normal [x][y] == KEY_PERIOD) && (!Shift_pressed)) { // Period key with a shift to make a comma (but to send a comma, there can be no shift)
|
|
// temporarily remove the shift
|
|
clear_mod(MODIFIERKEY_LEFT_SHIFT); // function loads 0 into the mod_... variable
|
|
send_mod(); // function sends all mod's over usb including the one that just released
|
|
delay(5); // 5msec delay
|
|
Keyboard.press(KEY_COMMA); // send a comma
|
|
delay(5); // 5msec delay to make sure it's sent
|
|
Keyboard.release(KEY_COMMA);
|
|
delay(5); // 5msec delay
|
|
// put back the shift
|
|
load_mod(MODIFIERKEY_LEFT_SHIFT); // function loads shift into the mod_... variable
|
|
send_mod(); // function sends the state of all modifier keys over usb including the shift
|
|
}
|
|
else if ((normal [x][y] == KEY_TILDE) && (Shift_pressed)) { // tilde is a place holder for VS. No shift = DO NOTHING
|
|
delay(1);
|
|
}
|
|
else if ((normal [x][y] == KEY_TILDE) && (!Shift_pressed)) { // VS (tilde) with a shift to mame = (but to send a =, there can be no shift)
|
|
// temporarily remove the shift
|
|
clear_mod(MODIFIERKEY_LEFT_SHIFT); // function loads 0 into the mod_... variable
|
|
send_mod(); // function sends all mod's over usb including the one that just released
|
|
delay(5); // 5msec delay
|
|
Keyboard.press(KEY_EQUAL); // send a equal
|
|
delay(5); // 5msec delay to make sure it's sent
|
|
Keyboard.release(KEY_EQUAL);
|
|
// put back the shift
|
|
load_mod(MODIFIERKEY_LEFT_SHIFT); // function loads shift into the mod_... variable
|
|
send_mod(); // function sends the state of all modifier keys over usb including the shift
|
|
}
|
|
else if ((normal [x][y] == KEY_BACKSPACE) && (!Shift_pressed)) { // Backspace with a shift for home (but to send a home, there can be no shift)
|
|
// temporarily remove the shift
|
|
clear_mod(MODIFIERKEY_LEFT_SHIFT); // function loads 0 into the mod_... variable
|
|
send_mod(); // function sends all mod's over usb including the one that just released
|
|
delay(5); // 5msec delay
|
|
Keyboard.press(KEY_HOME); // send a home
|
|
delay(5); // 5msec delay to make sure it's sent
|
|
Keyboard.release(KEY_HOME);
|
|
// put back the shift
|
|
load_mod(MODIFIERKEY_LEFT_SHIFT); // function loads shift into the mod_... variable
|
|
send_mod(); // function sends the state of all modifier keys over usb including the shift
|
|
}
|
|
else if ((normal [x][y] == KEY_1) && (!Shift_pressed)) { // shifted numbers = DO NOTHING
|
|
delay(1);
|
|
}
|
|
else if ((normal [x][y] == KEY_2) && (!Shift_pressed)) { // shifted numbers = DO NOTHING
|
|
delay(1);
|
|
}
|
|
else if ((normal [x][y] == KEY_3) && (!Shift_pressed)) { // shifted numbers = DO NOTHING
|
|
delay(1);
|
|
}
|
|
else if ((normal [x][y] == KEY_4) && (!Shift_pressed)) { // shifted numbers = DO NOTHING
|
|
delay(1);
|
|
}
|
|
else if ((normal [x][y] == KEY_5) && (!Shift_pressed)) { // shifted numbers = DO NOTHING
|
|
delay(1);
|
|
}
|
|
else if ((normal [x][y] == KEY_6) && (!Shift_pressed)) { // shifted numbers = DO NOTHING
|
|
delay(1);
|
|
}
|
|
else if ((normal [x][y] == KEY_7) && (!Shift_pressed)) { // shifted numbers = DO NOTHING
|
|
delay(1);
|
|
}
|
|
else if ((normal [x][y] == KEY_8) && (!Shift_pressed)) { // shifted numbers = DO NOTHING
|
|
delay(1);
|
|
}
|
|
else if ((normal [x][y] == KEY_9) && (!Shift_pressed)) { // shifted numbers = DO NOTHING
|
|
delay(1);
|
|
}
|
|
else if ((normal [x][y] == KEY_0) && (!Shift_pressed)) { // shifted numbers = DO NOTHING
|
|
delay(1);
|
|
}
|
|
// special cases are done
|
|
else { // send all the others normally
|
|
load_slot(normal[x][y]); //update first available slot with key name from normal matrix
|
|
send_normals(); // send all slots over USB including the key that just got pressed
|
|
}
|
|
}
|
|
else if (media[x][y] != 0) { // Fn is pressed so send media if a key exists in the matrix
|
|
Keyboard.press(media[x][y]); // media key is sent using keyboard press function per PJRC
|
|
delay(5); // delay 5 milliseconds before releasing to make sure it gets sent over USB
|
|
Keyboard.release(media[x][y]); // send media key release
|
|
}
|
|
}
|
|
else if (digitalRead(Col_IO[y]) && (!old_key[x][y])) { //check if key is not pressed, but was previously pressed
|
|
old_key[x][y] = HIGH; // Save state of key as "not pressed"
|
|
if (Fn_pressed) { // Fn is not pressed
|
|
// special cases don't need to send a clear slot
|
|
if (normal [x][y] == KEY_EQUAL) { // plus key with or without a shift = DO NOTHING
|
|
delay(1);
|
|
}
|
|
else if ((normal [x][y] == KEY_MINUS) && (!Shift_pressed)) { // MINUS key with a shift
|
|
delay(1);
|
|
}
|
|
else if ((normal [x][y] == KEY_SLASH) && (!Shift_pressed)) { // Slash key with a shift to make an underscore
|
|
delay(1);
|
|
}
|
|
else if ((normal [x][y] == KEY_PERIOD) && (!Shift_pressed)) { // Period key with a shift
|
|
delay(1);
|
|
}
|
|
else if (normal [x][y] == KEY_TILDE) { // VS (tilde)
|
|
delay(1);
|
|
}
|
|
else if ((normal [x][y] == KEY_BACKSPACE) && (!Shift_pressed)) { // Backspace with a shift
|
|
delay(1);
|
|
}
|
|
else if ((normal [x][y] == KEY_1) && (!Shift_pressed)) { // shifted numbers = DO NOTHING
|
|
delay(1);
|
|
}
|
|
else if ((normal [x][y] == KEY_2) && (!Shift_pressed)) { // shifted numbers = DO NOTHING
|
|
delay(1);
|
|
}
|
|
else if ((normal [x][y] == KEY_3) && (!Shift_pressed)) { // shifted numbers = DO NOTHING
|
|
delay(1);
|
|
}
|
|
else if ((normal [x][y] == KEY_4) && (!Shift_pressed)) { // shifted numbers = DO NOTHING
|
|
delay(1);
|
|
}
|
|
else if ((normal [x][y] == KEY_5) && (!Shift_pressed)) { // shifted numbers = DO NOTHING
|
|
delay(1);
|
|
}
|
|
else if ((normal [x][y] == KEY_6) && (!Shift_pressed)) { // shifted numbers = DO NOTHING
|
|
delay(1);
|
|
}
|
|
else if ((normal [x][y] == KEY_7) && (!Shift_pressed)) { // shifted numbers = DO NOTHING
|
|
delay(1);
|
|
}
|
|
else if ((normal [x][y] == KEY_8) && (!Shift_pressed)) { // shifted numbers = DO NOTHING
|
|
delay(1);
|
|
}
|
|
else if ((normal [x][y] == KEY_9) && (!Shift_pressed)) { // shifted numbers = DO NOTHING
|
|
delay(1);
|
|
}
|
|
else if ((normal [x][y] == KEY_0) && (!Shift_pressed)) { // shifted numbers = DO NOTHING
|
|
delay(1);
|
|
}
|
|
else {
|
|
clear_slot(normal[x][y]); //clear slot with key name from normal matrix
|
|
send_normals(); // send all slots over USB including the key that just got released
|
|
}
|
|
}
|
|
}
|
|
}
|
|
// **************end of normal and media key section
|
|
//
|
|
}
|
|
go_z(Row_IO[x]); // De-activate Row (send it to hi-z)
|
|
}
|
|
//
|
|
// **********keyboard scan complete
|
|
//
|
|
//******************Delay before the next scan
|
|
delay(25); // The overall keyboard scanning rate is about 30ms
|
|
}
|