Teensy USB Device.sketch

#include <keyboard.h>

//Pin layout here
const int buttonPin = 0;
const int buttonPin2 = 1;
const int buttonPin3 = 2;
const int buttonPin4 = 3;
const int buttonPin5 = 4;
const int buttonPin6 = 5;

int buttonState = 0;
int buttonState2 = 0;
int buttonState3 = 0;
int buttonState4 = 0;
int buttonState5 = 0;
int buttonState6 = 0;

//LED light
int led = 11;

void setup(){
    pinMode(buttonPin, INPUT_PULLUP);
    pinMode(buttonPin2, INPUT_PULLUP);
    pinMode(buttonPin3, INPUT_PULLUP);
    pinMode(buttonPin4, INPUT_PULLUP);
    pinMode(buttonPin5, INPUT_PULLUP);
    pinMode(buttonPin6, INPUT_PULLUP);
    pinMode(led, OUTPUT);
}

void loop(){
  //this is the led light control
  digitalWrite(led, HIGH);   // turn the LED on (HIGH is the voltage level)
  delay(300);               // wait for a second
  digitalWrite(led, LOW);    // turn the LED off by making the voltage LOW
  delay(100);

  buttonState = digitalRead(buttonPin);
  buttonState2 = digitalRead(buttonPin2);
  buttonState3 = digitalRead(buttonPin3);
  buttonState4 = digitalRead(buttonPin4);
  buttonState5 = digitalRead(buttonPin5);
  buttonState6 = digitalRead(buttonPin6);

  //this is for Save As...
  if (buttonState == LOW){
    Keyboard.set_modifier(MODIFIERKEY_CTRL);
    Keyboard.send_now();
    Keyboard.set_modifier(MODIFIERKEY_CTRL | MODIFIERKEY_SHIFT);
    Keyboard.send_now();
    Keyboard.set_key1(KEY_S);
    Keyboard.send_now();
  }
  if (buttonState == HIGH){
    Keyboard.set_modifier(0);
    Keyboard.set_key1(0);
    Keyboard.send_now();
  }
  //This will be for Brush Tool [B]
  if (buttonState2 == LOW){
    Keyboard.set_key2(KEY_B);
    Keyboard.send_now();
  }
  if (buttonState2 == HIGH){
    Keyboard.set_key2(0);
    Keyboard.send_now();
  }
  // Eraser Tool [E]
  if (buttonState3 == LOW){
    Keyboard.set_key3(KEY_E);
    Keyboard.send_now();
  }
  if (buttonState3 == HIGH){
    Keyboard.set_key3(0);
    Keyboard.send_now();
  }
  //Hand Tool
  if (buttonState4 == LOW){
    Keyboard.set_key4(KEY_SPACE);
    Keyboard.send_now();
  }
  if (buttonState4 == HIGH){
    Keyboard.set_key4(0);
    Keyboard.send_now();
  }
  if (buttonState5 == LOW){
    Keyboard.set_key5(KEY_H);
    Keyboard.send_now();
  }
  if (buttonState5 == HIGH){
    Keyboard.set_key5(0);
    Keyboard.send_now();
  }
  if (buttonState6 == LOW){
    //Undo Command
    Keyboard.set_modifier(MODIFIERKEY_CTRL);
    Keyboard.send_now();
    //Keyboard.set_modifier(MODIFIERKEY_CTRL | MODIFIERKEY_SHIFT);
    //Keyboard.send_now();
    Keyboard.set_key6(KEY_Z);
    Keyboard.send_now();
  }
  if (buttonState6 == HIGH){
    Keyboard.set_modifier(0);
    Keyboard.set_key6(0);
    Keyboard.send_now();
  }
  delay(2);
}