Simple Teensy Keyboard "Fuzzer"

keyboard_fuzzer.ino

//Simple Teensy Keyboard "Fuzzer"
#include <SoftwareSerial.h>

#define rxPin 27
#define txPin 0
#define ledPin 6
#define TIME_BETWEEN_KEYS 1000

int REGULAR_KEYS[] = {
    KEY_A, KEY_B, KEY_C, KEY_D,KEY_E, KEY_F, KEY_G, KEY_H,KEY_I, KEY_J, KEY_K,
    KEY_L, KEY_M, KEY_N, KEY_O, KEY_P, KEY_Q, KEY_R, KEY_S, KEY_T,KEY_U, KEY_V,
    KEY_W, KEY_X, KEY_Y, KEY_Z, KEY_1, KEY_2, KEY_3, KEY_4, KEY_5, KEY_6,KEY_7,
    KEY_8, KEY_9, KEY_0, KEY_ENTER, KEY_ESC, KEY_BACKSPACE, KEY_TAB, KEY_SPACE,
    KEY_MINUS, KEY_EQUAL, KEY_LEFT_BRACE, KEY_RIGHT_BRACE, KEY_BACKSLASH,
    KEY_SEMICOLON, KEY_QUOTE, KEY_TILDE, KEY_COMMA, KEY_PERIOD, KEY_SLASH,
    KEY_CAPS_LOCK, KEY_F1, KEY_F2,KEY_F3, KEY_F4, KEY_F5, KEY_F6, KEY_F7,
    KEY_F8, KEY_F9, KEY_F10, KEY_F11, KEY_F12, KEY_PRINTSCREEN, KEY_SCROLL_LOCK,
    KEY_PAUSE, KEY_INSERT, KEY_HOME, KEY_PAGE_UP, KEY_DELETE, KEY_END,
    KEY_PAGE_DOWN, KEY_RIGHT, KEY_LEFT, KEY_DOWN, KEY_UP, KEY_NUM_LOCK,
    KEYPAD_SLASH, KEYPAD_ASTERIX, KEYPAD_MINUS, KEYPAD_PLUS, KEYPAD_ENTER,
    KEYPAD_1, KEYPAD_2, KEYPAD_3, KEYPAD_4, KEYPAD_5, KEYPAD_6, KEYPAD_7,
    KEYPAD_8, KEYPAD_9, KEYPAD_0, KEYPAD_PERIOD, 0
    };

int MODIFIER_KEYS[] = {
    MODIFIERKEY_CTRL, MODIFIERKEY_RIGHT_CTRL, MODIFIERKEY_SHIFT,
    MODIFIERKEY_RIGHT_SHIFT, MODIFIERKEY_ALT,
    MODIFIERKEY_RIGHT_ALT, MODIFIERKEY_GUI, MODIFIERKEY_RIGHT_GUI, 0
    };

int MEDIA_KEYS[] = {
    KEY_MEDIA_PLAY, KEY_MEDIA_PAUSE, KEY_MEDIA_RECORD, KEY_MEDIA_STOP,
    KEY_MEDIA_REWIND, KEY_MEDIA_FAST_FORWARD, KEY_MEDIA_PREV_TRACK,
    KEY_MEDIA_NEXT_TRACK, KEY_MEDIA_VOLUME_DEC, KEY_MEDIA_VOLUME_INC,
    KEY_MEDIA_PLAY_PAUSE, KEY_MEDIA_PLAY_SKIP, KEY_MEDIA_MUTE, 
    KEY_MEDIA_EJECT, 0
    };

int CONTROL_KEYS[] = {
    KEY_SYSTEM_POWER_DOWN, KEY_SYSTEM_SLEEP, KEY_SYSTEM_WAKE_UP, 0
    };

void setup()  {
  pinMode(rxPin, INPUT);
  pinMode(txPin, OUTPUT);
  pinMode(ledPin, OUTPUT);
  delay(5000); //delay 5 seconds just to let you unplug the damn thing
}

void loop() {
    int i,e;

    /* send every media key */
    // for(i=0;MEDIA_KEYS[i];i++){
    //     Keyboard.press(MEDIA_KEYS[i]);
    //     Keyboard.release(MEDIA_KEYS[i]); 
    //     delay(TIME_BETWEEN_KEYS);
    // }
     
    /* send every regular key */
    // for(i=0;REGULAR_KEYS[i];i++){
    //     Keyboard.press(REGULAR_KEYS[i]);
    //     Keyboard.release(REGULAR_KEYS[i]); 
    //     delay(TIME_BETWEEN_KEYS);
    //  }
     
    /* send every regular key, with every modifier key */
    for(e=0;MODIFIER_KEYS[e];e++){
        Keyboard.set_modifier(MODIFIER_KEYS[e]);
        for(i=0;REGULAR_KEYS[i];i++){
            Keyboard.press(REGULAR_KEYS[i]);
            Keyboard.release(REGULAR_KEYS[i]);
        } 
        Keyboard.set_modifier(0);
        delay(TIME_BETWEEN_KEYS);
    }

    /* send every regular key, with ctrl + every modifier key */
    for(e=0;MODIFIER_KEYS[e];e++){
        if ((MODIFIER_KEYS[e] | MODIFIERKEY_CTRL) !=  MODIFIERKEY_CTRL){
            Keyboard.set_modifier(MODIFIER_KEYS[e] | MODIFIERKEY_CTRL);
            for(i=0;REGULAR_KEYS[i];i++){
                Keyboard.press(REGULAR_KEYS[i]);
                Keyboard.release(REGULAR_KEYS[i]);
            } 
            Keyboard.set_modifier(0);
        }
        if ((MODIFIER_KEYS[e] | MODIFIERKEY_CTRL) !=  MODIFIERKEY_CTRL){
            Keyboard.set_modifier(MODIFIER_KEYS[e] | MODIFIERKEY_RIGHT_CTRL);
            for(i=0;REGULAR_KEYS[i];i++){
              Keyboard.press(REGULAR_KEYS[i]);
              Keyboard.release(REGULAR_KEYS[i]);
            } 
            Keyboard.set_modifier(0);
            delay(TIME_BETWEEN_KEYS);
        }
    }
    
    Keyboard.set_modifier(0);
  
    /* ctrl + alt + every regular key */
    Keyboard.set_modifier(MODIFIERKEY_ALT| MODIFIERKEY_CTRL);
    for(i=0;REGULAR_KEYS[i];i++){
        if (REGULAR_KEYS[i] != KEY_DELETE){ //avoid ctrl+alt+del
            Keyboard.press(REGULAR_KEYS[i]);
            Keyboard.release(REGULAR_KEYS[i]);
        }
        delay(TIME_BETWEEN_KEYS);
    } 
    Keyboard.set_modifier(MODIFIERKEY_RIGHT_ALT | MODIFIERKEY_RIGHT_CTRL);
    for(i=0;REGULAR_KEYS[i];i++){
        if (REGULAR_KEYS[i] != KEY_DELETE){
            Keyboard.press(REGULAR_KEYS[i]);
            Keyboard.release(REGULAR_KEYS[i]);
        }
    }

    Keyboard.set_modifier(MODIFIERKEY_ALT | MODIFIERKEY_RIGHT_CTRL);
    for(i=0;REGULAR_KEYS[i];i++){
        if (REGULAR_KEYS[i] != KEY_DELETE){
            Keyboard.press(REGULAR_KEYS[i]);
            Keyboard.release(REGULAR_KEYS[i]);
        }
        delay(TIME_BETWEEN_KEYS);
    }
    Keyboard.set_modifier(MODIFIERKEY_RIGHT_ALT | MODIFIERKEY_CTRL);
    for(i=0;REGULAR_KEYS[i];i++){
        if (REGULAR_KEYS[i] != KEY_DELETE){
            Keyboard.press(REGULAR_KEYS[i]);
            Keyboard.release(REGULAR_KEYS[i]);
        }
        delay(TIME_BETWEEN_KEYS);
    } 
    Keyboard.set_modifier(0);
}