#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)
#define OLED_RESET            4 // Reset pin # (or -1 if sharing Arduino reset pin)
Adafruit_SSD1306 oled(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET);

void setup() 
{
  oled.begin(SSD1306_SWITCHCAPVCC, 0x3D);
  oled.clearDisplay();
  oled.setTextColor(WHITE);
  oled.setTextSize(1);
  oled.setCursor(0,0);
  oled.print("hello world");
  oled.display();
}

void loop() 
{

}