teensy DLP bypass

#include <LiquidCrystalFast.h>
#include <usb_private.h>
#include <SD.h>
#include <usb_keyboard.h>

LiquidCrystalFast lcd(8, 9, 10, 4, 5, 6, 7);
//                8 = RS    4 = D4   7 = D7
//                   9 = R/w   5 = D5
//                      10 = E    6 = D6
const int ledPin = 11;
const int chipSelect = 0;
int leds = 0;
int NumValue = 0;
int ScrollValue = 0;
int BeforeCapsValue = 0;
int CurrentCapsValue = 0;

int readings[10];

boolean IsNumbOn(int val){if ((val & 1) == 1){return true;} else {return false;}}
boolean IsCapsOn(int val){if ((val & 2) == 2){return true;} else {return false;}}
boolean IsScrlOn(int val){if ((val & 4) == 4){return true;} else {return false;}}

void setup() {//--------------------------------------------------------------------------------------------------------------------
    pinMode(ledPin, OUTPUT);
  for(int i = 0; i < 30; i++){digitalWrite(ledPin, HIGH);delay(50);
    digitalWrite(ledPin, LOW);delay(50);}

  lcd.begin(16, 4);
  lcd.setCursor(0,0); lcd.print("   -    -       ");
  lcd.setCursor(0,1); lcd.print("                ");
  lcd.setCursor(0,2); lcd.print("Elapsed         ");
  lcd.setCursor(0,3); lcd.print("Write           ");

  if (!SD.begin(chipSelect)) {lcd.clear();lcd.setCursor(0,0); lcd.print("Card failed     ");lcd.setCursor(0,1); lcd.print("or not present! ");delay(99999999);}

  File dataFile = SD.open("datalog.txt", FILE_WRITE);
  if (dataFile) {dataFile.println(""); dataFile.print("NewDataSet");}
  else {lcd.clear();lcd.setCursor(0,0); lcd.print("error opening");lcd.setCursor(0,1); lcd.print("datalog.txt");}

  for (int thisReading = 0; thisReading < 10; thisReading++)
    readings[thisReading] = 0;
}

void loop() {//--------------------------------------------------------------------------------------------------------------------
  File dataFile = SD.open("datalog.txt", FILE_WRITE);
  lcd.setCursor(10,2); lcd.print(millis());
  leds = keyboard_leds;
  NumValue = (leds & 1);

  // output to lcd
  if (IsNumbOn(leds)){lcd.setCursor(0,0); lcd.print("NUM");  //NumbLockCheck
  } else {lcd.setCursor(0,0); lcd.print("   ");}
  if (IsCapsOn(leds)){lcd.setCursor(4,0); lcd.print("CAPS");  //CapsLockCheck
  } else {lcd.setCursor(4,0); lcd.print("    ");}
  if (IsScrlOn(leds)){lcd.setCursor(9,0); lcd.print("SCROLL");  //ScrlLockCheck
  } else {lcd.setCursor(9,0); lcd.print("      ");}



  if (IsScrlOn(leds)){ //teensy has control
    //record value of num 0/1
    dataFile.print(NumValue);



    //display recorded data
    for(int i = 0; i < 10; i++){
      readings[10 - i] = readings[9 - i];
      lcd.setCursor(5 + i,3); lcd.print(readings[i]);
    }
  readings[0] = NumValue;

  //turn scroll off
  PressAndRelease(KEY_SCROLL_LOCK);
  delay(500);

  }

}

void PressAndRelease(int KeyCode){
    Keyboard.set_key1(KeyCode); // use r key
    Keyboard.send_now(); // send strokes
    Keyboard.set_key1(0);
    Keyboard.send_now(); // send strokes
}