// CLOCKWORK Keypad Arduino driver // For more information please visit https://forum.clockworkpi.com // HAPPY HACKING #include "UsbKeyboard.h" #define KEY_ENTER 0x28 // Keyboard Return (ENTER) #define KEY_ESCAPE 0x29 // Keyboard Escape #define KEY_BACKSPACE 0x2A // Keyboard Backspace #define KEY_SPACE 0x2C // Keyboard Space #define KEY_DASH 0x2D // Keyboard - and _ #define KEY_EQUAL 0x2E // Keyboard = and + #define KEY_HOME 0x4A // Keyboard Home #define KEY_PAGE_UP 0x4B // Keyboard Page Up #define KEY_END 0x4D // Keyboard End #define KEY_PAGE_DOWN 0x4E // Keyboard Page Down #define KEY_RIGHT_ARROW 0x4F // Keyboard Right Arrow #define KEY_LEFT_ARROW 0x50 // Keyboard Left Arrow #define KEY_DOWN_ARROW 0x51 // Keyboard Down Arrow #define KEY_UP_ARROW 0x52 // Keyboard Up Arrow #define KEY_NUM_DASH 0x56 // Keyboard Num Pad - #define KEY_NUM_PLUS 0x57 // Keyboard Num Pad + #define KEY_OFF 1 #define KEY_ON 0 #define ADC_BOUNDARY 500 #define DIGITAL_KEY_NUM 9 #define ANALOG_KEY_NUM 6 #define KEY_NUM (DIGITAL_KEY_NUM + ANALOG_KEY_NUM) #define SHIFT_KEY_NUM 2 #define KEY_NULL 0xff #define KEYPAD_UP KEY_UP_ARROW #define KEYPAD_LEFT KEY_LEFT_ARROW #define KEYPAD_DOWN KEY_DOWN_ARROW #define KEYPAD_RIGHT KEY_RIGHT_ARROW #define KEYPAD_Y KEY_I #define KEYPAD_X KEY_U #define KEYPAD_A KEY_J #define KEYPAD_B KEY_K #define KEYPAD_MENU KEY_ESCAPE #define KEYPAD_SELECT KEY_SPACE #define KEYPAD_START KEY_ENTER #define KEYPAD_LIGHT1 KEY_L #define KEYPAD_LIGHT2 KEY_O #define KEYPAD_LIGHT4 KEY_Y #define KEYPAD_LIGHT5 KEY_H #define KEYPAD_UP_SHIFT KEY_UP_ARROW #define KEYPAD_LEFT_SHIFT KEY_LEFT_ARROW #define KEYPAD_DOWN_SHIFT KEY_DOWN_ARROW #define KEYPAD_RIGHT_SHIFT KEY_RIGHT_ARROW #define KEYPAD_Y_SHIFT KEY_O #define KEYPAD_X_SHIFT KEY_Y #define KEYPAD_A_SHIFT KEY_H #define KEYPAD_B_SHIFT KEY_L #define KEYPAD_MENU_SHIFT KEY_BACKSPACE #define KEYPAD_SELECT_SHIFT KEY_NUM_DASH #define KEYPAD_START_SHIFT KEY_NUM_PLUS #define KEYPAD_LIGHT1_SHIFT KEY_END #define KEYPAD_LIGHT2_SHIFT KEY_PAGE_DOWN #define KEYPAD_LIGHT4_SHIFT KEY_PAGE_UP #define KEYPAD_LIGHT5_SHIFT KEY_HOME const int pins[KEY_NUM] = {3, 6, 7, 8, 9, 10, 11, 12, 13, 0, 2, 3, 4, 6, 7}; const int shift_pins[SHIFT_KEY_NUM] = {1, 5}; const int keys[KEY_NUM] = { KEYPAD_UP, KEYPAD_LEFT, KEYPAD_DOWN, KEYPAD_RIGHT, KEYPAD_Y, KEYPAD_X, KEYPAD_A, KEYPAD_B, KEYPAD_START, KEYPAD_MENU, KEYPAD_SELECT, KEYPAD_LIGHT1, KEYPAD_LIGHT2, KEYPAD_LIGHT4, KEYPAD_LIGHT5 }; const int shift_keys[KEY_NUM] = { KEYPAD_UP_SHIFT, KEYPAD_LEFT_SHIFT, KEYPAD_DOWN_SHIFT, KEYPAD_RIGHT_SHIFT, KEYPAD_Y_SHIFT, KEYPAD_X_SHIFT, KEYPAD_A_SHIFT, KEYPAD_B_SHIFT, KEYPAD_START_SHIFT, KEYPAD_MENU_SHIFT, KEYPAD_SELECT_SHIFT, KEYPAD_LIGHT1_SHIFT, KEYPAD_LIGHT2_SHIFT, KEYPAD_LIGHT4_SHIFT, KEYPAD_LIGHT5_SHIFT }; int old_keys[KEY_NUM]; bool shift_key_pressed() { for(int i = 0; i < SHIFT_KEY_NUM; i++) { if(analogRead(shift_pins[i]) /ADC_BOUNDARY == KEY_ON) return true; } return false; } void setup() { TIMSK0 &= !(1 << TOIE0); for(int i = 0; i < KEY_NUM; i++) { if(i < DIGITAL_KEY_NUM) { pinMode(pins[i], INPUT); } old_keys[i] = KEY_NULL; } Serial.begin(115200); } void loop() { int on_off, key; UsbKeyboard.update(); delay(1000); for(int i = 0; i < KEY_NUM; i++) { if( i < DIGITAL_KEY_NUM) { on_off = digitalRead(pins[i]); } else { on_off = analogRead(pins[i])/ADC_BOUNDARY; } if(on_off == KEY_OFF) { if(old_keys[i] != KEY_NULL) { UsbKeyboard.release(old_keys[i]); old_keys[i] = KEY_NULL; } } else { if(shift_key_pressed()) { key = shift_keys[i]; } else { key = keys[i]; } if(key != old_keys[i]) { if(old_keys[i] != KEY_NULL) { UsbKeyboard.release(old_keys[i]); } UsbKeyboard.press(key); old_keys[i] = key; } } } }