medvedych/USB_Laptop_Keyboard_Controller
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Frank Adams 2020-05-17 14:27:02 -07:00 committed by GitHub
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1 changed files with 42 additions and 25 deletions
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67
Example_Keyboards/IBM Thinkpad 380ED/IBM_380.ino
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@ -15,18 +15,19 @@
//
// Revision History
// Initial Release May 16, 2020
// Rev A May 17, 2020 - Added Fn-F9,F10,F11,F12 adjustments for trackpoint
//
#define MODIFIERKEY_FN 0x8f // give Fn key a fake HID code
#define CAPS_LED 14
#define CAPS_LED 14 // Teensy I/O's connected to thru hole pads with resistors for LEDs
#define NUM_LED 15
#define SCRL_LED 16
#define HEARTBEAT_LED 13
#define TP_LEFT 20 // Trackpoint mouse buttons connected to Teensy 3.2 I/O's
#define HEARTBEAT_LED 13 // onboard LED set to blink
#define TP_LEFT 20 // Trackpoint mouse buttons connected to Teensy I/O's with pullups
#define TP_RIGHT 5
#define TP_RETURN 30
#define TP_RETURN 30 // will be driven low
//
const byte rows_max = 17; // sets the number of rows in the matrix
const byte cols_max = 9; // sets the number of columns in the matrix
const byte rows_max = 17; // sets the number of rows in the keyboard matrix
const byte cols_max = 9; // sets the number of columns in the keyboard matrix
//
// Load the normal key matrix with the Teensyduino key names
// described at www.pjrc.com/teensy/td_keyboard.html
@ -114,7 +115,7 @@ int media[rows_max][cols_max] = {
{0,0,0,0,0,0,0,0,0},
{0,0,0,0,0,0,0,0,0}
};
// Initialize the old_key matrix with one's.
// Initialize the old_key matrix with one's (nothing pressed).
// 1 = key not pressed, 0 = key is pressed
boolean old_key[rows_max][cols_max] = {
{1,1,1,1,1,1,1,1,1},
@ -139,25 +140,25 @@ boolean old_key[rows_max][cols_max] = {
// Assign the Teensy I/O row numbers
int Row_IO[rows_max] = {7,8,9,10,11,12,18,19,24,25,26,27,28,29,31,32,33};
//
// Assignb the column I/O numbers
// Assign the column I/O numbers
int Col_IO[cols_max] = {0,1,2,3,4,6,21,22,23};
// declare and initialize trackpoint variables
int x_read; // stores the reading from the X ADC
int y_read; // same for the Y ADC
char mx; // signed byte used by the Mouse.move function for x value. Positive value moves to the right
char my; // positive y value moves down
int x_delta; // signed 16 bit value gives x movement amount
int y_delta; // y version.
int x_center; //resting position of x sensor
int y_center; //resting position of y sensor
int noise_zone = 50; // dead zone around the center. Can be as low as 3 but cursor may start to drift so add some safety margin.
int x_read; // stores the reading from the X ADC
int y_read; // same for the Y ADC
char mx; // signed byte used by the Mouse.move function for x value. Positive value moves to the right
char my; // positive y value moves down
int x_delta; // signed 16 bit value gives x movement amount
int y_delta; // y version.
int x_center; //resting position of x sensor
int y_center; //resting position of y sensor
int noise_zone = 50; // dead zone around the center. Can be as low as 3 but cursor may start to drift so add some safety margin.
// Increase this number if the cursor moves without touching the TP. Decrease if too much force is needed.
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
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
// declare keyboard variables
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.
@ -347,11 +348,12 @@ void setup() {
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
}
//
pinMode(HEARTBEAT_LED, OUTPUT); // drive the LED on the Teensy
}
//
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.
extern volatile uint8_t keyboard_leds; // 8 bits sent from host to Teensy that give keyboard LED status.
char blink_count = 0; // heartbeat loop counter
boolean blinky = LOW; // heartbeat LED state
//
@ -404,7 +406,7 @@ void loop() {
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 {
else { // Num Lock is not turned on
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
}
@ -414,6 +416,21 @@ void loop() {
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_F12) { // Fn is active and F12 is pressed - recapture TP center
x_center = analogRead(A11); // store the center (no movement) position for x
y_center = analogRead(A10); // same for y
}
else if (normal[x][y] == KEY_F10) { // Fn is active and F10 is pressed - increase noise zone value by 5
noise_zone = noise_zone + 5;
}
else if (normal[x][y] == KEY_F9) { // Fn is active and F9 is pressed - decrease noise zone value by 5
if (noise_zone >= 5) { // don't allow noise zone to be reduced below zero because it will cause cursor drift
noise_zone = noise_zone - 5;
}
}
else if (normal[x][y] == KEY_F11) { // Fn is active and F11 is pressed - Set noise zone to default value of 50
noise_zone = 50;
}
}
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"
@ -435,7 +452,7 @@ void loop() {
go_z(Row_IO[x]); // De-activate Row (send it to hi-z)
}
//
// **********keyboard scan complete
// **********keyboard scan complete*******************************
//
// Control the 3 keyboard LEDs
//