//compiled for teensy 3.2 with keyboard support

#include <OneWire.h>



OneWire  ds(10); 



#include <SPI.h>
#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>

#define SCREEN_WIDTH 128 // OLED display width, in pixels
#define SCREEN_HEIGHT 64 // OLED display height, in pixels
#define OLED_RESET     4 // Reset pin # (or -1 if sharing Arduino reset pin)

#define SCREEN_ADDRESS 0x3C ///< See datasheet for Address; 0x3D for 128x64, 0x3C for 128x32
Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET);



  byte addr[8];


void setup() {
  Serial.begin(115200);
  pinMode(14,INPUT_PULLUP);

    // SSD1306_SWITCHCAPVCC = generate display voltage from 3.3V internally
  if(!display.begin(SSD1306_SWITCHCAPVCC, SCREEN_ADDRESS)) {
    Serial.println(F("SSD1306 allocation failed"));
    for(;;); // Don't proceed, loop forever
  }

  // Show initial display buffer contents on the screen --
  // the library initializes this with an Adafruit splash screen.
  display.display();
  // Clear the buffer
  display.clearDisplay();
    display.setTextSize(1);             // Normal 1:1 pixel scale
  display.setTextColor(SSD1306_WHITE);        // Draw white text
  display.setCursor(0,0); 
       display.print("Hallo Vorstand!");
  display.setCursor(0,20); 
       display.print("Gib mir 1 Key Hoschie");
    
    display.display();


    while ( !ds.search(addr)) {
    delay(10);
   }


}


void printchar(int num, int posx, int posy)
{


      display.setCursor(posx,posy);
      if(num<16)
      {
        display.print('0');       
      }
      display.print(num, HEX);
  
}

void keychar(int num)
{


      if(num<16)
      {
        Keyboard.print('0');       
      }
      Keyboard.print(num, HEX);
  
}


void loop() {




 display.clearDisplay();

  display.setTextSize(2);             // Normal 1:1 pixel scale
  display.setTextColor(SSD1306_WHITE);        // Draw white text
  display.setCursor(0,0);             // Start at top-left corner
   display.cp437(true);         // Use full 256 char 'Code Page 437' font



  printchar(addr[0],0,0);

      display.print("-");


  printchar(addr[6],0,20);
  printchar(addr[5],28,20);
  printchar(addr[4],56,20);

  printchar(addr[3],0,40);
  printchar(addr[2],28,40);
  printchar(addr[1],56,40);

  display.display();



Serial.println("");


  if(!digitalRead(14))
  {

    keychar(addr[0]);
        Keyboard.print('-');   

  for( int i = 6; i >0 ; i--) {
    keychar(addr[i]);

  }
  delay(1000);
    
  }

}