#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

// Declaration for an SSD1306 display connected to I2C (SDA, SCL pins)
// The pins for I2C are defined by the Wire-library. 
// On an arduino UNO:       A4(SDA), A5(SCL)
// On an arduino MEGA 2560: 20(SDA), 21(SCL)
// On an arduino LEONARDO:   2(SDA),  3(SCL), ...
#define OLED_RESET     -1 // 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);

void setup() {
  display.begin(SSD1306_SWITCHCAPVCC, SCREEN_ADDRESS); // SSD1306_SWITCHCAPVCC = generate display voltage from 3.3V internally
  display.clearDisplay(); // Clear the buffer
  display.setTextSize(1); //Set the text size
  display.setTextColor(WHITE); //Set text color
  display.setCursor(0,0); //Set's ther cursor initial position
  display.print("Hello World");
  display.display(); // Show initial display buffer contents on the screen. The library initializes this with an Adafruit splash screen.

}

void loop() {
  // put your main code here, to run repeatedly:

}