diff --git a/GRID 1550/1550 Keyboard Project.pdf b/GRID 1550/1550 Keyboard Project.pdf deleted file mode 100644 index 386b3c6..0000000 Binary files a/GRID 1550/1550 Keyboard Project.pdf and /dev/null differ diff --git a/GRID 1550/1550_PC_Version.ino b/GRID 1550/1550_PC_Version.ino deleted file mode 100644 index 306e1da..0000000 --- a/GRID 1550/1550_PC_Version.ino +++ /dev/null @@ -1,500 +0,0 @@ -/* Copyright 2019 Frank Adams - Licensed under the Apache License, Version 2.0 (the "License"); - you may not use this file except in compliance with the License. - You may obtain a copy of the License at - http://www.apache.org/licenses/LICENSE-2.0 - Unless required by applicable law or agreed to in writing, software - distributed under the License is distributed on an "AS IS" BASIS, - WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - See the License for the specific language governing permissions and - limitations under the License. -*/ -// This software implements a GRID 1550 Laptop Keyboard Controller using a Teensy LC -// for use with a Windows PC. -// -// Revision History -// Initial Release Dec 12, 2019 - Created from Linux version, uses alt codes for \ and | which are not -// compatible with Linux -// -#define MODIFIERKEY_FN 0x8f // give Fn key a fake HID code -#define CAPS_LED 13 // Teensy LED on IO#13 shows Caps-Lock -#define NUM_LED 0 // Teensy IO#0 shows Num-Lock (wire to anode of new LED) -// -const byte rows_max = 11; // sets the number of rows in the matrix -const byte cols_max = 13; // sets the number of columns in the matrix -// -// Load the normal key matrix with the Teensyduino key names -// described at www.pjrc.com/teensy/td_keyboard.html -// A zero indicates no normal key at that location. -int normal[rows_max][cols_max] = { - {0,0,0,0,0,KEY_F1,KEY_F2,KEY_F3,KEY_F4,KEY_F5,0,KEY_F9,0}, - {0,0,0,0,KEY_SPACE,0,0,0,0,0,0,0,0}, - {0,0,0,0,0,KEY_ESC,KEY_1,0,KEY_F6,KEY_F7,KEY_F8,KEY_F10,0}, - {0,0,0,0,0,KEY_TAB,KEY_Q,KEY_W,KEY_2,KEY_3,0,KEY_6,0}, - {0,0,0,0,0,KEY_CAPS_LOCK,KEY_A,KEY_S,KEY_E,KEY_4,KEY_5,KEY_7,0}, - {0,0,0,KEY_LEFT,0,0,0,KEY_Z,KEY_F,KEY_D,KEY_8,KEY_9,0}, - {0,0,0,KEY_DOWN,0,0,KEY_X,KEY_C,KEY_G,KEY_R,KEY_T,KEY_0,0}, - {0,0,0,KEY_NUM_LOCK,0,KEY_SCROLL_LOCK,KEY_V,KEY_B,KEY_H,KEY_Y,KEY_U,KEY_MINUS,0}, - {0,0,0,KEY_TILDE,0,KEY_UP,KEY_N,KEY_M,KEY_J,KEY_K,KEY_I,KEY_INSERT,0}, - {0,0,0,KEY_BACKSLASH,0,KEY_RIGHT_BRACE,KEY_COMMA,KEY_BACKSPACE,KEY_L,KEY_DELETE,KEY_O,KEY_EQUAL,0}, - {0,0,0,KEY_RIGHT,0,KEY_ENTER,KEY_SLASH,KEY_PERIOD,KEY_QUOTE,KEY_SEMICOLON,KEY_LEFT_BRACE,KEY_P,0} - -}; -// Load the numlock key matrix with key names at the correct row-column location. -// This matrix is the same as the normal matrix except for the number pad keys -// A zero indicates no numlock key at that location. -int numlock[rows_max][cols_max] = { - {0,0,0,0,0,KEY_F1,KEY_F2,KEY_F3,KEY_F4,KEY_F5,0,KEY_F9,0}, - {0,0,0,0,KEY_SPACE,0,0,0,0,0,0,0,0}, - {0,0,0,0,0,KEY_ESC,KEY_1,0,KEY_F6,KEY_F7,KEY_F8,KEY_F10,0}, - {0,0,0,0,0,KEY_TAB,KEY_Q,KEY_W,KEY_2,KEY_3,0,KEY_6,0}, - {0,0,0,0,0,KEY_CAPS_LOCK,KEY_A,KEY_S,KEY_E,KEY_4,KEY_5,KEYPAD_7,0}, - {0,0,0,KEY_LEFT,0,0,0,KEY_Z,KEY_F,KEY_D,KEYPAD_8,KEYPAD_9,0}, - {0,0,0,KEY_DOWN,0,0,KEY_X,KEY_C,KEY_G,KEY_R,KEY_T,KEYPAD_ASTERIX,0}, - {0,0,0,KEY_NUM_LOCK,0,KEY_SCROLL_LOCK,KEY_V,KEY_B,KEY_H,KEY_Y,KEYPAD_4,KEY_MINUS,0}, - {0,0,0,KEY_TILDE,0,KEY_UP,KEY_N,KEY_M,KEYPAD_1,KEYPAD_2,KEYPAD_5,KEY_INSERT,0}, - {0,0,0,KEY_BACKSLASH,0,KEY_RIGHT_BRACE,KEYPAD_0,KEY_BACKSPACE,KEYPAD_3,KEY_DELETE,KEYPAD_6,KEY_EQUAL,0}, - {0,0,0,KEY_RIGHT,0,KEY_ENTER,KEYPAD_SLASH,KEYPAD_PERIOD,KEY_QUOTE,KEYPAD_PLUS,KEY_LEFT_BRACE,KEYPAD_MINUS,0} - -}; -// Load the modifier key matrix with key names at the correct row-column location. -// A zero indicates no modifier key at that location. -int modifier[rows_max][cols_max] = { - {0,0,0,0,0,0,0,0,0,0,0,0,0}, - {MODIFIERKEY_LEFT_SHIFT,MODIFIERKEY_FN,MODIFIERKEY_RIGHT_SHIFT,0,0,0,0,0,0,0,0,0,MODIFIERKEY_LEFT_ALT}, - {0,0,0,0,0,0,0,0,0,0,0,0,0}, - {0,0,0,0,0,0,0,0,0,0,0,0,0}, - {0,0,0,0,0,0,0,0,0,0,0,0,0}, - {0,0,0,0,0,MODIFIERKEY_LEFT_CTRL,0,0,0,0,0,0,0}, - {0,0,0,0,0,MODIFIERKEY_RIGHT_ALT,0,0,0,0,0,0,0}, - {0,0,0,0,0,0,0,0,0,0,0,0,0}, - {0,0,0,0,0,0,0,0,0,0,0,0,0}, - {0,0,0,0,0,0,0,0,0,0,0,0,0}, - {0,0,0,0,0,0,0,0,0,0,0,0,0} - -}; -// Load the media key matrix with Fn key names at the correct row-column location. -// A zero indicates no media key at that location. -int media[rows_max][cols_max] = { - {0,0,0,0,0,0,0,0,0,0,0,0,0}, - {0,0,0,0,0,0,0,0,0,0,0,0,0}, - {0,0,0,0,0,0,0,0,0,0,0,0,0}, - {0,0,0,0,0,0,0,0,0,0,0,0,0}, - {0,0,0,0,0,0,0,0,0,0,0,0,0}, - {0,0,0,KEY_HOME,0,0,0,0,0,0,0,0,0}, - {0,0,0,KEY_PAGE_DOWN,0,0,0,0,0,0,0,0,0}, - {0,0,0,0,0,KEY_PAUSE,0,0,0,0,0,0,0}, - {0,0,0,0,0,KEY_PAGE_UP,0,0,0,0,0,KEY_F11,0}, - {0,0,0,0,0,0,0,0,0,KEY_F12,0,0,0}, - {0,0,0,KEY_END,0,0,0,0,0,0,0,0,0} - -}; -// Initialize the old_key matrix with one's. -// 1 = key not pressed, 0 = key is pressed -boolean old_key[rows_max][cols_max] = { - {1,1,1,1,1,1,1,1,1,1,1,1,1}, - {1,1,1,1,1,1,1,1,1,1,1,1,1}, - {1,1,1,1,1,1,1,1,1,1,1,1,1}, - {1,1,1,1,1,1,1,1,1,1,1,1,1}, - {1,1,1,1,1,1,1,1,1,1,1,1,1}, - {1,1,1,1,1,1,1,1,1,1,1,1,1}, - {1,1,1,1,1,1,1,1,1,1,1,1,1}, - {1,1,1,1,1,1,1,1,1,1,1,1,1}, - {1,1,1,1,1,1,1,1,1,1,1,1,1}, - {1,1,1,1,1,1,1,1,1,1,1,1,1}, - {1,1,1,1,1,1,1,1,1,1,1,1,1} - -}; -// -// Define the Teensy LC I/O numbers (translated from the FPC pin #) -// Row FPC pin # 04,06,08,10,12,14,16,18,20,22,24 -// Teensy I/O # 01,02,03,04,05,06,07,08,09,10,11 -int Row_IO[rows_max] = {1,2,3,4,5,6,7,8,9,10,11}; // Teensy LC I/O numbers for rows -// -// Column FPC pin # 01,03,05,07,09,11,13,15,17,19,21,23,26 -// Teensy I/O # 23,22,24,21,25,20,19,18,17,16,15,14,12 -int Col_IO[cols_max] = {23,22,24,21,25,20,19,18,17,16,15,14,12}; // Teensy LC I/O numbers for columns - -// Declare variables that will be used by functions -boolean slots_full = LOW; // Goes high when slots 1 thru 6 contain normal keys -// slot 1 thru slot 6 hold the normal key values to be sent over USB. -int slot1 = 0; //value of 0 means the slot is empty and can be used. -int slot2 = 0; -int slot3 = 0; -int slot4 = 0; -int slot5 = 0; -int slot6 = 0; -// -int mod_shift_l = 0; // These variables are sent over USB as modifier keys. -int mod_shift_r = 0; // Each is either set to 0 or MODIFIER_ ... -int mod_ctrl_l = 0; -int mod_ctrl_r = 0; -int mod_alt_l = 0; -int mod_alt_r = 0; -int mod_gui = 0; -// -// Function to load the key name into the first available slot -void load_slot(int key) { - if (!slot1) { - slot1 = key; - } - else if (!slot2) { - slot2 = key; - } - else if (!slot3) { - slot3 = key; - } - else if (!slot4) { - slot4 = key; - } - else if (!slot5) { - slot5 = key; - } - else if (!slot6) { - slot6 = key; - } - if (!slot1 || !slot2 || !slot3 || !slot4 || !slot5 || !slot6) { - slots_full = LOW; // slots are not full - } - else { - slots_full = HIGH; // slots are full - } -} -// -// Function to clear the slot that contains the key name -void clear_slot(int key) { - if (slot1 == key) { - slot1 = 0; - } - else if (slot2 == key) { - slot2 = 0; - } - else if (slot3 == key) { - slot3 = 0; - } - else if (slot4 == key) { - slot4 = 0; - } - else if (slot5 == key) { - slot5 = 0; - } - else if (slot6 == key) { - slot6 = 0; - } - if (!slot1 || !slot2 || !slot3 || !slot4 || !slot5 || !slot6) { - slots_full = LOW; // slots are not full - } - else { - slots_full = HIGH; // slots are full - } -} -// -// Function to load the modifier key name into the appropriate mod variable -void load_mod(int m_key) { - if (m_key == MODIFIERKEY_LEFT_SHIFT) { - mod_shift_l = m_key; - } - else if (m_key == MODIFIERKEY_RIGHT_SHIFT) { - mod_shift_r = m_key; - } - else if (m_key == MODIFIERKEY_LEFT_CTRL) { - mod_ctrl_l = m_key; - } - else if (m_key == MODIFIERKEY_RIGHT_CTRL) { - mod_ctrl_r = m_key; - } - else if (m_key == MODIFIERKEY_LEFT_ALT) { - mod_alt_l = m_key; - } - else if (m_key == MODIFIERKEY_RIGHT_ALT) { - mod_alt_r = m_key; - } - else if (m_key == MODIFIERKEY_GUI) { - mod_gui = m_key; - } -} -// -// Function to load 0 into the appropriate mod variable -void clear_mod(int m_key) { - if (m_key == MODIFIERKEY_LEFT_SHIFT) { - mod_shift_l = 0; - } - else if (m_key == MODIFIERKEY_RIGHT_SHIFT) { - mod_shift_r = 0; - } - else if (m_key == MODIFIERKEY_LEFT_CTRL) { - mod_ctrl_l = 0; - } - else if (m_key == MODIFIERKEY_RIGHT_CTRL) { - mod_ctrl_r = 0; - } - else if (m_key == MODIFIERKEY_LEFT_ALT) { - mod_alt_l = 0; - } - else if (m_key == MODIFIERKEY_RIGHT_ALT) { - mod_alt_r = 0; - } - else if (m_key == MODIFIERKEY_GUI) { - mod_gui = 0; - } -} -// -// Function to send the modifier keys over usb -void send_mod() { - Keyboard.set_modifier(mod_shift_l | mod_shift_r | mod_ctrl_l | mod_ctrl_r | mod_alt_l | mod_alt_r | mod_gui); - Keyboard.send_now(); -} -// -// Function to send the normal keys in the 6 slots over usb -void send_normals() { - Keyboard.set_key1(slot1); - Keyboard.set_key2(slot2); - Keyboard.set_key3(slot3); - Keyboard.set_key4(slot4); - Keyboard.set_key5(slot5); - Keyboard.set_key6(slot6); - Keyboard.send_now(); -} -// -// Function to set a pin to high impedance (acts like open drain output) -void go_z(int pin) -{ - pinMode(pin, INPUT); - digitalWrite(pin, HIGH); -} -// -// Function to set a pin as an input with a pullup -void go_pu(int pin) -{ - pinMode(pin, INPUT_PULLUP); - digitalWrite(pin, HIGH); -} -// -// Function to send a pin to a logic low -void go_0(int pin) -{ - pinMode(pin, OUTPUT); - digitalWrite(pin, LOW); -} -// -// Function to send a pin to a logic high -void go_1(int pin) -{ - pinMode(pin, OUTPUT); - digitalWrite(pin, HIGH); -} -// -//----------------------------------Setup------------------------------------------- -void setup() { - for (int a = 0; a < cols_max; a++) { // loop thru all column pins - go_pu(Col_IO[a]); // set each column pin as an input with a pullup - } -// - for (int b = 0; b < rows_max; b++) { // loop thru all row pins - go_z(Row_IO[b]); // set each row pin as a floating output - } -} -// -boolean Fn_pressed = HIGH; // Initialize Fn key to HIGH = "not pressed" -extern volatile uint8_t keyboard_leds; // 8 bits sent from Pi to Teensy that give keyboard LED status. Caps lock is bit D1. -// -//---------------------------------Main Loop--------------------------------------------- -// -void loop() { -// Scan keyboard matrix with an outer loop that drives each row low and an inner loop that reads every column (with pull ups). -// The routine looks at each key's present state (by reading the column input pin) and also the previous state from the last scan -// 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. -// The keyboard keys will read as logic low if they are pressed (negative logic). -// The old_key matrix also uses negative logic (low=pressed). -// - for (int x = 0; x < rows_max; x++) { // loop thru the rows - go_0(Row_IO[x]); // Activate Row (send it low) - delayMicroseconds(10); // give the row time to go low and settle out - for (int y = 0; y < cols_max; y++) { // loop thru the columns -// **********Modifier keys including the Fn special case - if (modifier[x][y] != 0) { // check if modifier key exists - if (!digitalRead(Col_IO[y]) && (old_key[x][y])) { // Read column to see if key is low (pressed) and was previously not pressed - if (modifier[x][y] != MODIFIERKEY_FN) { // Exclude Fn modifier key - if (Fn_pressed) { // only send modifier keys if Fn key is not currently held down - load_mod(modifier[x][y]); // function reads which modifier key is pressed and loads it into the appropriate mod_... variable - send_mod(); // function sends the state of all modifier keys over usb including the one that just got pressed - old_key[x][y] = LOW; // Save state of key as "pressed" - } - else { // Fn key is already held down so check if right alt key is pressed and send print screen if yes - if (modifier[x][y] == MODIFIERKEY_RIGHT_ALT) { - Keyboard.press(KEY_PRINTSCREEN); - delay(5); - Keyboard.release(KEY_PRINTSCREEN); - delay(5); - } - } - } - else { - Fn_pressed = LOW; // Fn status variable is active low - old_key[x][y] = LOW; // old_key state is "pressed" (active low) - } - } - else if (digitalRead(Col_IO[y]) && (!old_key[x][y])) { //check if key is not pressed and was previously pressed - if (modifier[x][y] != MODIFIERKEY_FN) { // Exclude Fn modifier key - clear_mod(modifier[x][y]); // function reads which modifier key was released and loads 0 into the appropriate mod_... variable - send_mod(); // function sends all mod's over usb including the one that just released - old_key[x][y] = HIGH; // Save state of key as "not pressed" - } - else { - Fn_pressed = HIGH; // Fn is no longer active - old_key[x][y] = HIGH; // old_key state is "not pressed" - } - } - } -// ***********end of modifier section -// -// ***********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_pressed is active low so it is not pressed and normal key needs to be sent - if (keyboard_leds & 1) { // test if Num Lock is turned on - load_slot(numlock[x][y]); //update first available slot with key name from numlock matrix - send_normals(); // send all slots over USB including the key that just got pressed - } - else { - 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 (normal[x][y] == KEY_Z) { // Fn is pressed but no media key so check if KEY_Z is pressed -// if using this keyboard on a Raspberry Pi, comment out the following Alt code section and uncomment the unicode section -// *******Windows PC Alt Code sequence to give a backslash is Alt 92******************************* - Keyboard.press(MODIFIERKEY_LEFT_ALT); // Push and hold Left Alt - delay(5); - Keyboard.press(KEYPAD_9); // Push 9 - delay(5); - Keyboard.release(KEYPAD_9); // Release 9 - delay(5); - Keyboard.press(KEYPAD_2); // Push 2 - delay(5); - Keyboard.release(KEYPAD_2); // Release 2 - delay(5); - Keyboard.release(MODIFIERKEY_LEFT_ALT); // Release Left Alt - delay(5); -// *******Raspberry Pi Unicode sequence to give a backslash is Control+Shift+u 5c Enter***************************** -/* Keyboard.press(MODIFIERKEY_LEFT_CTRL); // Push and hold Left Control - delay(5); - Keyboard.press(MODIFIERKEY_LEFT_SHIFT); // Push and hold Left Shift - delay(5); - Keyboard.press(KEY_U); // Push u - delay(5); - Keyboard.release(KEY_U); // Release u - delay(5); - Keyboard.release(MODIFIERKEY_LEFT_CTRL); // Release Left Control - delay(5); - Keyboard.release(MODIFIERKEY_LEFT_SHIFT); // Release Left Shift - delay(5); - Keyboard.press(KEY_5); // Push 5 - delay(5); - Keyboard.release(KEY_5); // Release 5 - delay(5); - Keyboard.press(KEY_C); // Push c - delay(5); - Keyboard.release(KEY_C); // Release c - delay(5); - Keyboard.press(KEY_ENTER); // Push Enter - delay(5); - Keyboard.release(KEY_ENTER); // Release Enter - delay(5); -*/ - } - else if (normal[x][y] == KEY_X) { // Fn is pressed but no media key so check if KEY_X is pressed -// if using this keyboard on a Raspberry Pi, comment out the following Alt code section and uncomment the unicode section -// *******Windows PC Alt Code sequence to give a | is Alt 124******************************* - Keyboard.press(MODIFIERKEY_LEFT_ALT); // Push and hold Left Alt - delay(5); - Keyboard.press(KEYPAD_1); // Push 1 - delay(5); - Keyboard.release(KEYPAD_1); // Release 1 - 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.release(MODIFIERKEY_LEFT_ALT); // Release Left Alt - delay(5); -// *******Raspberry Pi Unicode sequence to give a | is Control+Shift+u 7c Enter***************************** -/* Keyboard.press(MODIFIERKEY_LEFT_CTRL); // Push and hold Left Control - delay(5); - Keyboard.press(MODIFIERKEY_LEFT_SHIFT); // Push and hold Left Shift - delay(5); - Keyboard.press(KEY_U); // Push u - delay(5); - Keyboard.release(KEY_U); // Release u - delay(5); - Keyboard.release(MODIFIERKEY_LEFT_CTRL); // Release Left Control - delay(5); - Keyboard.release(MODIFIERKEY_LEFT_SHIFT); // Release Left Shift - delay(5); - Keyboard.press(KEY_7); // Push 7 - delay(5); - Keyboard.release(KEY_7); // Release 7 - delay(5); - Keyboard.press(KEY_C); // Push c - delay(5); - Keyboard.release(KEY_C); // Release c - delay(5); - Keyboard.press(KEY_ENTER); // Push Enter - delay(5); - Keyboard.release(KEY_ENTER); // Release Enter - delay(5); -*/ - } - } - 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 - if (keyboard_leds & 1) { // test if Num Lock is turned on - clear_slot(numlock[x][y]); //clear slot with key name from numlock matrix - send_normals(); // send all slots over USB including the key that just got released - } - 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 -// -// Turn on the LED on the Teensy for Caps Lock based on bit 1 in the keyboard_leds variable controlled by the USB host computer -// - if (keyboard_leds & 1<<1) { // mask off all bits but D1 and test if set - go_1(CAPS_LED); // turn on the LED - } - else { - go_0(CAPS_LED); // turn off the LED - } -// -// Turn on the LED on the Teensy for Num Lock based on bit 0 in the keyboard_leds variable controlled by the USB host computer -// - if (keyboard_leds & 1) { // mask off all bits but D0 and test if set - go_1(NUM_LED); // turn on the Num Lock LED - } - else { - go_0(NUM_LED); // turn off the Num Lock LED - } -// - delay(25); // The overall keyboard scanning rate is about 30ms -} diff --git a/GRID 1550/1550_Pi_Version.ino b/GRID 1550/1550_Pi_Version.ino deleted file mode 100644 index 154736b..0000000 --- a/GRID 1550/1550_Pi_Version.ino +++ /dev/null @@ -1,501 +0,0 @@ -/* Copyright 2019 Frank Adams - Licensed under the Apache License, Version 2.0 (the "License"); - you may not use this file except in compliance with the License. - You may obtain a copy of the License at - http://www.apache.org/licenses/LICENSE-2.0 - Unless required by applicable law or agreed to in writing, software - distributed under the License is distributed on an "AS IS" BASIS, - WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - See the License for the specific language governing permissions and - limitations under the License. -*/ -// This software implements a GRID 1550 Laptop Keyboard Controller using a Teensy LC -// for use with a Raspberry Pi or similar Linux computer. -// -// Revision History -// Initial Release Sept 15, 2019 -// Revision Dec 8, 2019 - Increased delays from 5ms to 25ms for the Alt 92 key codes to give backslash -// Revision Dec 11, 2019 - Added Unicode method to give backslash and pipe since Alt codes don't work for Linux -// -#define MODIFIERKEY_FN 0x8f // give Fn key a fake HID code -#define CAPS_LED 13 // Teensy LED on IO#13 shows Caps-Lock -#define NUM_LED 0 // Teensy IO#0 shows Num-Lock (wire to anode of new LED) -// -const byte rows_max = 11; // sets the number of rows in the matrix -const byte cols_max = 13; // sets the number of columns in the matrix -// -// Load the normal key matrix with the Teensyduino key names -// described at www.pjrc.com/teensy/td_keyboard.html -// A zero indicates no normal key at that location. -int normal[rows_max][cols_max] = { - {0,0,0,0,0,KEY_F1,KEY_F2,KEY_F3,KEY_F4,KEY_F5,0,KEY_F9,0}, - {0,0,0,0,KEY_SPACE,0,0,0,0,0,0,0,0}, - {0,0,0,0,0,KEY_ESC,KEY_1,0,KEY_F6,KEY_F7,KEY_F8,KEY_F10,0}, - {0,0,0,0,0,KEY_TAB,KEY_Q,KEY_W,KEY_2,KEY_3,0,KEY_6,0}, - {0,0,0,0,0,KEY_CAPS_LOCK,KEY_A,KEY_S,KEY_E,KEY_4,KEY_5,KEY_7,0}, - {0,0,0,KEY_LEFT,0,0,0,KEY_Z,KEY_F,KEY_D,KEY_8,KEY_9,0}, - {0,0,0,KEY_DOWN,0,0,KEY_X,KEY_C,KEY_G,KEY_R,KEY_T,KEY_0,0}, - {0,0,0,KEY_NUM_LOCK,0,KEY_SCROLL_LOCK,KEY_V,KEY_B,KEY_H,KEY_Y,KEY_U,KEY_MINUS,0}, - {0,0,0,KEY_TILDE,0,KEY_UP,KEY_N,KEY_M,KEY_J,KEY_K,KEY_I,KEY_INSERT,0}, - {0,0,0,KEY_BACKSLASH,0,KEY_RIGHT_BRACE,KEY_COMMA,KEY_BACKSPACE,KEY_L,KEY_DELETE,KEY_O,KEY_EQUAL,0}, - {0,0,0,KEY_RIGHT,0,KEY_ENTER,KEY_SLASH,KEY_PERIOD,KEY_QUOTE,KEY_SEMICOLON,KEY_LEFT_BRACE,KEY_P,0} - -}; -// Load the numlock key matrix with key names at the correct row-column location. -// This matrix is the same as the normal matrix except for the number pad keys -// A zero indicates no numlock key at that location. -int numlock[rows_max][cols_max] = { - {0,0,0,0,0,KEY_F1,KEY_F2,KEY_F3,KEY_F4,KEY_F5,0,KEY_F9,0}, - {0,0,0,0,KEY_SPACE,0,0,0,0,0,0,0,0}, - {0,0,0,0,0,KEY_ESC,KEY_1,0,KEY_F6,KEY_F7,KEY_F8,KEY_F10,0}, - {0,0,0,0,0,KEY_TAB,KEY_Q,KEY_W,KEY_2,KEY_3,0,KEY_6,0}, - {0,0,0,0,0,KEY_CAPS_LOCK,KEY_A,KEY_S,KEY_E,KEY_4,KEY_5,KEYPAD_7,0}, - {0,0,0,KEY_LEFT,0,0,0,KEY_Z,KEY_F,KEY_D,KEYPAD_8,KEYPAD_9,0}, - {0,0,0,KEY_DOWN,0,0,KEY_X,KEY_C,KEY_G,KEY_R,KEY_T,KEYPAD_ASTERIX,0}, - {0,0,0,KEY_NUM_LOCK,0,KEY_SCROLL_LOCK,KEY_V,KEY_B,KEY_H,KEY_Y,KEYPAD_4,KEY_MINUS,0}, - {0,0,0,KEY_TILDE,0,KEY_UP,KEY_N,KEY_M,KEYPAD_1,KEYPAD_2,KEYPAD_5,KEY_INSERT,0}, - {0,0,0,KEY_BACKSLASH,0,KEY_RIGHT_BRACE,KEYPAD_0,KEY_BACKSPACE,KEYPAD_3,KEY_DELETE,KEYPAD_6,KEY_EQUAL,0}, - {0,0,0,KEY_RIGHT,0,KEY_ENTER,KEYPAD_SLASH,KEYPAD_PERIOD,KEY_QUOTE,KEYPAD_PLUS,KEY_LEFT_BRACE,KEYPAD_MINUS,0} - -}; -// Load the modifier key matrix with key names at the correct row-column location. -// A zero indicates no modifier key at that location. -int modifier[rows_max][cols_max] = { - {0,0,0,0,0,0,0,0,0,0,0,0,0}, - {MODIFIERKEY_LEFT_SHIFT,MODIFIERKEY_FN,MODIFIERKEY_RIGHT_SHIFT,0,0,0,0,0,0,0,0,0,MODIFIERKEY_LEFT_ALT}, - {0,0,0,0,0,0,0,0,0,0,0,0,0}, - {0,0,0,0,0,0,0,0,0,0,0,0,0}, - {0,0,0,0,0,0,0,0,0,0,0,0,0}, - {0,0,0,0,0,MODIFIERKEY_LEFT_CTRL,0,0,0,0,0,0,0}, - {0,0,0,0,0,MODIFIERKEY_RIGHT_ALT,0,0,0,0,0,0,0}, - {0,0,0,0,0,0,0,0,0,0,0,0,0}, - {0,0,0,0,0,0,0,0,0,0,0,0,0}, - {0,0,0,0,0,0,0,0,0,0,0,0,0}, - {0,0,0,0,0,0,0,0,0,0,0,0,0} - -}; -// Load the media key matrix with Fn key names at the correct row-column location. -// A zero indicates no media key at that location. -int media[rows_max][cols_max] = { - {0,0,0,0,0,0,0,0,0,0,0,0,0}, - {0,0,0,0,0,0,0,0,0,0,0,0,0}, - {0,0,0,0,0,0,0,0,0,0,0,0,0}, - {0,0,0,0,0,0,0,0,0,0,0,0,0}, - {0,0,0,0,0,0,0,0,0,0,0,0,0}, - {0,0,0,KEY_HOME,0,0,0,0,0,0,0,0,0}, - {0,0,0,KEY_PAGE_DOWN,0,0,0,0,0,0,0,0,0}, - {0,0,0,0,0,KEY_PAUSE,0,0,0,0,0,0,0}, - {0,0,0,0,0,KEY_PAGE_UP,0,0,0,0,0,KEY_F11,0}, - {0,0,0,0,0,0,0,0,0,KEY_F12,0,0,0}, - {0,0,0,KEY_END,0,0,0,0,0,0,0,0,0} - -}; -// Initialize the old_key matrix with one's. -// 1 = key not pressed, 0 = key is pressed -boolean old_key[rows_max][cols_max] = { - {1,1,1,1,1,1,1,1,1,1,1,1,1}, - {1,1,1,1,1,1,1,1,1,1,1,1,1}, - {1,1,1,1,1,1,1,1,1,1,1,1,1}, - {1,1,1,1,1,1,1,1,1,1,1,1,1}, - {1,1,1,1,1,1,1,1,1,1,1,1,1}, - {1,1,1,1,1,1,1,1,1,1,1,1,1}, - {1,1,1,1,1,1,1,1,1,1,1,1,1}, - {1,1,1,1,1,1,1,1,1,1,1,1,1}, - {1,1,1,1,1,1,1,1,1,1,1,1,1}, - {1,1,1,1,1,1,1,1,1,1,1,1,1}, - {1,1,1,1,1,1,1,1,1,1,1,1,1} - -}; -// -// Define the Teensy LC I/O numbers (translated from the FPC pin #) -// Row FPC pin # 04,06,08,10,12,14,16,18,20,22,24 -// Teensy I/O # 01,02,03,04,05,06,07,08,09,10,11 -int Row_IO[rows_max] = {1,2,3,4,5,6,7,8,9,10,11}; // Teensy LC I/O numbers for rows -// -// Column FPC pin # 01,03,05,07,09,11,13,15,17,19,21,23,26 -// Teensy I/O # 23,22,24,21,25,20,19,18,17,16,15,14,12 -int Col_IO[cols_max] = {23,22,24,21,25,20,19,18,17,16,15,14,12}; // Teensy LC I/O numbers for columns - -// Declare variables that will be used by functions -boolean slots_full = LOW; // Goes high when slots 1 thru 6 contain normal keys -// slot 1 thru slot 6 hold the normal key values to be sent over USB. -int slot1 = 0; //value of 0 means the slot is empty and can be used. -int slot2 = 0; -int slot3 = 0; -int slot4 = 0; -int slot5 = 0; -int slot6 = 0; -// -int mod_shift_l = 0; // These variables are sent over USB as modifier keys. -int mod_shift_r = 0; // Each is either set to 0 or MODIFIER_ ... -int mod_ctrl_l = 0; -int mod_ctrl_r = 0; -int mod_alt_l = 0; -int mod_alt_r = 0; -int mod_gui = 0; -// -// Function to load the key name into the first available slot -void load_slot(int key) { - if (!slot1) { - slot1 = key; - } - else if (!slot2) { - slot2 = key; - } - else if (!slot3) { - slot3 = key; - } - else if (!slot4) { - slot4 = key; - } - else if (!slot5) { - slot5 = key; - } - else if (!slot6) { - slot6 = key; - } - if (!slot1 || !slot2 || !slot3 || !slot4 || !slot5 || !slot6) { - slots_full = LOW; // slots are not full - } - else { - slots_full = HIGH; // slots are full - } -} -// -// Function to clear the slot that contains the key name -void clear_slot(int key) { - if (slot1 == key) { - slot1 = 0; - } - else if (slot2 == key) { - slot2 = 0; - } - else if (slot3 == key) { - slot3 = 0; - } - else if (slot4 == key) { - slot4 = 0; - } - else if (slot5 == key) { - slot5 = 0; - } - else if (slot6 == key) { - slot6 = 0; - } - if (!slot1 || !slot2 || !slot3 || !slot4 || !slot5 || !slot6) { - slots_full = LOW; // slots are not full - } - else { - slots_full = HIGH; // slots are full - } -} -// -// Function to load the modifier key name into the appropriate mod variable -void load_mod(int m_key) { - if (m_key == MODIFIERKEY_LEFT_SHIFT) { - mod_shift_l = m_key; - } - else if (m_key == MODIFIERKEY_RIGHT_SHIFT) { - mod_shift_r = m_key; - } - else if (m_key == MODIFIERKEY_LEFT_CTRL) { - mod_ctrl_l = m_key; - } - else if (m_key == MODIFIERKEY_RIGHT_CTRL) { - mod_ctrl_r = m_key; - } - else if (m_key == MODIFIERKEY_LEFT_ALT) { - mod_alt_l = m_key; - } - else if (m_key == MODIFIERKEY_RIGHT_ALT) { - mod_alt_r = m_key; - } - else if (m_key == MODIFIERKEY_GUI) { - mod_gui = m_key; - } -} -// -// Function to load 0 into the appropriate mod variable -void clear_mod(int m_key) { - if (m_key == MODIFIERKEY_LEFT_SHIFT) { - mod_shift_l = 0; - } - else if (m_key == MODIFIERKEY_RIGHT_SHIFT) { - mod_shift_r = 0; - } - else if (m_key == MODIFIERKEY_LEFT_CTRL) { - mod_ctrl_l = 0; - } - else if (m_key == MODIFIERKEY_RIGHT_CTRL) { - mod_ctrl_r = 0; - } - else if (m_key == MODIFIERKEY_LEFT_ALT) { - mod_alt_l = 0; - } - else if (m_key == MODIFIERKEY_RIGHT_ALT) { - mod_alt_r = 0; - } - else if (m_key == MODIFIERKEY_GUI) { - mod_gui = 0; - } -} -// -// Function to send the modifier keys over usb -void send_mod() { - Keyboard.set_modifier(mod_shift_l | mod_shift_r | mod_ctrl_l | mod_ctrl_r | mod_alt_l | mod_alt_r | mod_gui); - Keyboard.send_now(); -} -// -// Function to send the normal keys in the 6 slots over usb -void send_normals() { - Keyboard.set_key1(slot1); - Keyboard.set_key2(slot2); - Keyboard.set_key3(slot3); - Keyboard.set_key4(slot4); - Keyboard.set_key5(slot5); - Keyboard.set_key6(slot6); - Keyboard.send_now(); -} -// -// Function to set a pin to high impedance (acts like open drain output) -void go_z(int pin) -{ - pinMode(pin, INPUT); - digitalWrite(pin, HIGH); -} -// -// Function to set a pin as an input with a pullup -void go_pu(int pin) -{ - pinMode(pin, INPUT_PULLUP); - digitalWrite(pin, HIGH); -} -// -// Function to send a pin to a logic low -void go_0(int pin) -{ - pinMode(pin, OUTPUT); - digitalWrite(pin, LOW); -} -// -// Function to send a pin to a logic high -void go_1(int pin) -{ - pinMode(pin, OUTPUT); - digitalWrite(pin, HIGH); -} -// -//----------------------------------Setup------------------------------------------- -void setup() { - for (int a = 0; a < cols_max; a++) { // loop thru all column pins - go_pu(Col_IO[a]); // set each column pin as an input with a pullup - } -// - for (int b = 0; b < rows_max; b++) { // loop thru all row pins - go_z(Row_IO[b]); // set each row pin as a floating output - } -} -// -boolean Fn_pressed = HIGH; // Initialize Fn key to HIGH = "not pressed" -extern volatile uint8_t keyboard_leds; // 8 bits sent from Pi to Teensy that give keyboard LED status. Caps lock is bit D1. -// -//---------------------------------Main Loop--------------------------------------------- -// -void loop() { -// Scan keyboard matrix with an outer loop that drives each row low and an inner loop that reads every column (with pull ups). -// The routine looks at each key's present state (by reading the column input pin) and also the previous state from the last scan -// 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. -// The keyboard keys will read as logic low if they are pressed (negative logic). -// The old_key matrix also uses negative logic (low=pressed). -// - for (int x = 0; x < rows_max; x++) { // loop thru the rows - go_0(Row_IO[x]); // Activate Row (send it low) - delayMicroseconds(10); // give the row time to go low and settle out - for (int y = 0; y < cols_max; y++) { // loop thru the columns -// **********Modifier keys including the Fn special case - if (modifier[x][y] != 0) { // check if modifier key exists - if (!digitalRead(Col_IO[y]) && (old_key[x][y])) { // Read column to see if key is low (pressed) and was previously not pressed - if (modifier[x][y] != MODIFIERKEY_FN) { // Exclude Fn modifier key - if (Fn_pressed) { // only send modifier keys if Fn key is not currently held down - load_mod(modifier[x][y]); // function reads which modifier key is pressed and loads it into the appropriate mod_... variable - send_mod(); // function sends the state of all modifier keys over usb including the one that just got pressed - old_key[x][y] = LOW; // Save state of key as "pressed" - } - else { // Fn key is already held down so check if right alt key is pressed and send print screen if yes - if (modifier[x][y] == MODIFIERKEY_RIGHT_ALT) { - Keyboard.press(KEY_PRINTSCREEN); - delay(5); - Keyboard.release(KEY_PRINTSCREEN); - delay(5); - } - } - } - else { - Fn_pressed = LOW; // Fn status variable is active low - old_key[x][y] = LOW; // old_key state is "pressed" (active low) - } - } - else if (digitalRead(Col_IO[y]) && (!old_key[x][y])) { //check if key is not pressed and was previously pressed - if (modifier[x][y] != MODIFIERKEY_FN) { // Exclude Fn modifier key - clear_mod(modifier[x][y]); // function reads which modifier key was released and loads 0 into the appropriate mod_... variable - send_mod(); // function sends all mod's over usb including the one that just released - old_key[x][y] = HIGH; // Save state of key as "not pressed" - } - else { - Fn_pressed = HIGH; // Fn is no longer active - old_key[x][y] = HIGH; // old_key state is "not pressed" - } - } - } -// ***********end of modifier section -// -// ***********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_pressed is active low so it is not pressed and normal key needs to be sent - if (keyboard_leds & 1) { // test if Num Lock is turned on - load_slot(numlock[x][y]); //update first available slot with key name from numlock matrix - send_normals(); // send all slots over USB including the key that just got pressed - } - else { - 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 (normal[x][y] == KEY_Z) { // Fn is pressed but no media key so check if KEY_Z is pressed -// if using this keyboard on a Windows PC, uncomment the following Alt code section and comment out the unicode section -// *******Windows PC Alt Code sequence to give a backslash is Alt 92******************************* -/* Keyboard.press(MODIFIERKEY_LEFT_ALT); // Push and hold Left Alt - delay(5); - Keyboard.press(KEYPAD_9); // Push 9 - delay(5); - Keyboard.release(KEYPAD_9); // Release 9 - delay(5); - Keyboard.press(KEYPAD_2); // Push 2 - delay(5); - Keyboard.release(KEYPAD_2); // Release 2 - delay(5); - Keyboard.release(MODIFIERKEY_LEFT_ALT); Release Left Alt - delay(5); -*/ -// *******Raspberry Pi Unicode sequence to give a backslash is Control+Shift+u 5c Enter***************************** - Keyboard.press(MODIFIERKEY_LEFT_CTRL); // Push and hold Left Control - delay(5); - Keyboard.press(MODIFIERKEY_LEFT_SHIFT); // Push and hold Left Shift - delay(5); - Keyboard.press(KEY_U); // Push u - delay(5); - Keyboard.release(KEY_U); // Release u - delay(5); - Keyboard.release(MODIFIERKEY_LEFT_CTRL); // Release Left Control - delay(5); - Keyboard.release(MODIFIERKEY_LEFT_SHIFT); // Release Left Shift - delay(5); - Keyboard.press(KEY_5); // Push 5 - delay(5); - Keyboard.release(KEY_5); // Release 5 - delay(5); - Keyboard.press(KEY_C); // Push c - delay(5); - Keyboard.release(KEY_C); // Release c - delay(5); - Keyboard.press(KEY_ENTER); // Push Enter - delay(5); - Keyboard.release(KEY_ENTER); // Release Enter - delay(5); - } - else if (normal[x][y] == KEY_X) { // Fn is pressed but no media key so check if KEY_X is pressed -// if using this keyboard on a Windows PC, uncomment the following Alt code section and comment out the unicode section -// *******Windows PC Alt Code sequence to give a | is Alt 124******************************* -/* Keyboard.press(MODIFIERKEY_LEFT_ALT); // Push and hold Left Alt - delay(5); - Keyboard.press(KEYPAD_1); // Push 1 - delay(5); - Keyboard.release(KEYPAD_1); // Release 1 - 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.release(MODIFIERKEY_LEFT_ALT); Release Left Alt - delay(5); -*/ -// *******Raspberry Pi Unicode sequence to give a | is Control+Shift+u 7c Enter***************************** - Keyboard.press(MODIFIERKEY_LEFT_CTRL); // Push and hold Left Control - delay(5); - Keyboard.press(MODIFIERKEY_LEFT_SHIFT); // Push and hold Left Shift - delay(5); - Keyboard.press(KEY_U); // Push u - delay(5); - Keyboard.release(KEY_U); // Release u - delay(5); - Keyboard.release(MODIFIERKEY_LEFT_CTRL); // Release Left Control - delay(5); - Keyboard.release(MODIFIERKEY_LEFT_SHIFT); // Release Left Shift - delay(5); - Keyboard.press(KEY_7); // Push 7 - delay(5); - Keyboard.release(KEY_7); // Release 7 - delay(5); - Keyboard.press(KEY_C); // Push c - delay(5); - Keyboard.release(KEY_C); // Release c - delay(5); - Keyboard.press(KEY_ENTER); // Push Enter - delay(5); - Keyboard.release(KEY_ENTER); // Release Enter - delay(5); - } - } - 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 - if (keyboard_leds & 1) { // test if Num Lock is turned on - clear_slot(numlock[x][y]); //clear slot with key name from numlock matrix - send_normals(); // send all slots over USB including the key that just got released - } - 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 -// -// Turn on the LED on the Teensy for Caps Lock based on bit 1 in the keyboard_leds variable controlled by the USB host computer -// - if (keyboard_leds & 1<<1) { // mask off all bits but D1 and test if set - go_1(CAPS_LED); // turn on the LED - } - else { - go_0(CAPS_LED); // turn off the LED - } -// -// Turn on the LED on the Teensy for Num Lock based on bit 0 in the keyboard_leds variable controlled by the USB host computer -// - if (keyboard_leds & 1) { // mask off all bits but D0 and test if set - go_1(NUM_LED); // turn on the Num Lock LED - } - else { - go_0(NUM_LED); // turn off the Num Lock LED - } -// - delay(25); // The overall keyboard scanning rate is about 30ms -} diff --git a/GRID 1550/Grid_Mouse.ino b/GRID 1550/Grid_Mouse.ino deleted file mode 100644 index 6d5dc4b..0000000 --- a/GRID 1550/Grid_Mouse.ino +++ /dev/null @@ -1,156 +0,0 @@ -/* Copyright 2019 Frank Adams - Licensed under the Apache License, Version 2.0 (the "License"); - you may not use this file except in compliance with the License. - You may obtain a copy of the License at - http://www.apache.org/licenses/LICENSE-2.0 - Unless required by applicable law or agreed to in writing, software - distributed under the License is distributed on an "AS IS" BASIS, - WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - See the License for the specific language governing permissions and - limitations under the License. -*/ -// This software reads the 6 logic signals from a Grid 1550 laptop "mouse" and converts it to USB. -// The Grid 1550 laptop has a shaft in place of a touchpad. The shaft is rolled forward or backwards -// which moves the cursor up or down. Likewise the entire shaft can be slid left or right to move the cursor left or right. -// There are two buttons on the left of the shaft and two buttons on the right of the shaft. -// The two buttons closest to the shaft act like normal left mouse buttons. -// The two buttons furthest from the shaft are right mouse buttons. -// Pins 3 and 4 are active for up/down movement. Pins 5 and 6 are active for left/right movement. -// The pin pairs use a rotational encoding scheme that is described in the following wiki page: -// https://en.wikipedia.org/wiki/Rotary_encoder -// -// I/O pins 0 & 1 are used to enable/disable the mouse and to adjust its speed -// I/O 1 I/O 0 Result -// High High Count by 1 -// High Low Count by 2 -// Low High Count by 3 -// Low Low Mouse disabled -// -// Revision History -// Rev 1.0 - Nov 3, 2019 - Original Release -// Rev 1.1 - Nov 4, 2019 - Fixed swapped mouse buttons -// Rev 1.2 - Nov 4, 2019 - Added speed controls -// -#include // used for making a 24msec timer -// -#define SPEED_PIN0 0 // Input with pullup - Can be driven by the Teensy controlling the keyboard -#define SPEED_PIN1 1 // Input with pullup - Can be driven by the Teensy controlling the keyboard -// Connect the Teensy I/O's 3 thru 8 to the Grid mouse connector pins 3 thru 8 -#define MOUSE_PIN3 3 // Left/Right Encoder signal A -#define MOUSE_PIN4 4 // Left/Right Encoder signal B -#define MOUSE_PIN5 5 // Up/Down Encoder signal A -#define MOUSE_PIN6 6 // Up/Down Encoder signal B -#define MOUSE_PIN7 7 // Right Mouse Button -#define MOUSE_PIN8 8 // Left Mouse Button -// -// Declare and initialize variables - boolean left_button = 0; // on/off variable for left button, 1 = pushed - boolean right_button = 0; // on/off variable for right button, 1 = pushed - boolean old_left_button = 0; // on/off variable for left button from the previous cycle - boolean old_right_button = 0; // on/off variable for right button from the previous cycle - boolean button_change = 0; // Shows when the left or right buttons have changed, 1 = change - volatile int8_t x_count = 0; // left/right movement. 8 bit signed. Volatile because used in ISR - volatile int8_t y_count = 0; // up or down movement. 8 bit signed. Volatile because used in ISR - boolean x_A; // holds the state of pin 3 - boolean x_A_Last; // holds the previous state of pin 3 - boolean y_A; // holds the state of pin 5 - boolean y_A_Last; // holds the previous state of pin 5 - boolean mouse_on = 1; // high when mouse is turned on, low when turned off - boolean speed0 = 1; // result of reading pin 0 - boolean speed1 = 1; // result of reading pin 1 - int8_t count_by = 1; // value to add or substract from x & y counters (1, 2, or 3 depending on SPEED_PIN0 & 1) -// -// USB Interrupt Service Routine (ISR) Activates every 24msec when timer1 ticks -void sendUSB(void) { -// send the x and y data back to the host via usb if either counter is non-zero. -// if the mouse is turned off, the counters can't increment so they will both be zero. - if ((x_count != 0x00) || (y_count != 0x00)) { - Mouse.move(x_count,y_count); - x_count = 0; // clear the x and y counters - y_count = 0; - } -// read the touchpad left and right buttons - if (!digitalRead(MOUSE_PIN7)) { // check if right button is low (low = pushed) - right_button = 1; // save state of button - } - else { // clear right button - right_button = 0; // save state of button - } - if (!digitalRead(MOUSE_PIN8)) { // check if left button is low (low = pushed) - left_button = 1; // save state of button - } - else { // clear left button - left_button = 0; // save state of button - } -// Determine if the left or right mouse buttons have changed (using XOR) since the last cycle - button_change = (left_button ^ old_left_button) | (right_button ^ old_right_button); -// Don't send button status if there's no change since last time or if the mouse is turned off. - if (button_change && mouse_on){ - Mouse.set_buttons(left_button, 0, right_button); // send button status over USB - } - old_left_button = left_button; // remember button status for the next cycle - old_right_button = right_button; -} -// *****************Setup the timer and input pins*********************************************** -void setup() { - Timer1.initialize(24000); // 24msec timer - Timer1.attachInterrupt(sendUSB); // sendUSB function will run every 24 milliseconds - pinMode(SPEED_PIN0, INPUT_PULLUP); // both speed controls are inputs with pullups - pinMode(SPEED_PIN1, INPUT_PULLUP); // if left floating, both will be 1's to give count_by 1 - pinMode(MOUSE_PIN3, INPUT); // teensy I/O 3 is an input for left/right signal A - pinMode(MOUSE_PIN4, INPUT); // teensy I/O 4 is an input for left/right signal B - pinMode(MOUSE_PIN5, INPUT); // teensy I/O 5 is an input for up/down signal A - pinMode(MOUSE_PIN6, INPUT); // teensy I/O 6 is an input for up/down signal B - pinMode(MOUSE_PIN7, INPUT); // teensy I/O 7 is an input for right mouse button - pinMode(MOUSE_PIN8, INPUT); // teensy I/O 8 is an input for left mouse button - x_A_Last = digitalRead(MOUSE_PIN3); // save logic state of pin 3 - y_A_Last = digitalRead(MOUSE_PIN5); // save logic state of pin 5 -} -// *********Main Loop constantly watches for activity on pins 3 and 5 plus status on pins 0 & 1********* -void loop() { -// adjust the x counter if pin 3 changes (i.e. has an up or down edge) - x_A = digitalRead(MOUSE_PIN3); // Read the current state of pin 3 - if (x_A != x_A_Last){ // If pin 3 is different than the previous pin 3, an edge has occured. - noInterrupts(); // disable the timer interrupt while modifying the x counter - if (digitalRead(MOUSE_PIN4) != x_A) { // see if pin 4 equals pin 3 - x_count = x_count + count_by; // pin 3 is ahead of pin 4 so move the cursor to the right by increasing the counter - } - else { - x_count = x_count - count_by; // pin 3 is behind pin 4 so move the cursor to the left by decreasing the counter - } - interrupts(); // enable the timer interrupt - } - x_A_Last = x_A; // save the state of pin 3 for the next loop -// adjust the y counter if pin 5 has an up or down edge - y_A = digitalRead(MOUSE_PIN5); // Reads the current state of pin 5 - if (y_A != y_A_Last){ // If pin 5 is different than the previous pin 5, an edge has occured. - noInterrupts(); // disable the timer interrupt while modifying the y counter - if (digitalRead(MOUSE_PIN6) != y_A) { // see if pin 6 equals pin 5 - y_count = y_count + count_by; // pin 5 is ahead of pin 6 so move the cursor down by increasing the counter - } - else { - y_count = y_count - count_by; // pin 5 is behind pin 6 so move the cursor up by decreasing the counter - } - interrupts(); // enable the timer interrupt - } - y_A_Last = y_A; // save the state of pin 5 for the next loop -// Read speed pins 0 & 1 to adjust count and on/off control - speed0 = digitalRead(SPEED_PIN0); - speed1 = digitalRead(SPEED_PIN1); - if (speed0 && speed1) { // this is the high & high case - count_by = 1; // slow speed movement - mouse_on = 1; // turn mouse on - } - else if (!speed0 && speed1) { // this is the low & high case - count_by = 2; // middle speed movement - mouse_on = 1; // turn mouse on - } - else if (speed0 && !speed1){ // this is the high & low case - count_by = 3; // high speed movement - mouse_on = 1; // turn mouse on - } - else { // this is the low & low case - count_by = 0; // no movement - mouse_on = 0; // turn mouse off - } -}