#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 SSD1306 display connected using I2C
#define OLED_RESET     -1 // Reset pin # (or -1 if sharing Arduino reset pin)
#define SCREEN_ADDRESS 0x3C
Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET);

// Declaration for SSD1306 display connected using software SPI:
//#define OLED_MOSI   9
//#define OLED_CLK   10
//#define OLED_DC    11
//#define OLED_CS    12
//#define OLED_RESET 13
//Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, OLED_MOSI, OLED_CLK, OLED_DC, OLED_RESET, OLED_CS);

void setup()
{
  pinMode(4, OUTPUT);
  pinMode(12, OUTPUT);

  Serial.begin(9600);
  
  // initialize the OLED object
  if(!display.begin(SSD1306_SWITCHCAPVCC, SCREEN_ADDRESS)) {
    Serial.println(F("SSD1306 allocation failed"));
    for(;;); // Don't proceed, loop forever
  }

  
}

void selam(){
  display.clearDisplay();

  // Display Text
  display.clearDisplay();
  display.setTextColor(WHITE);
  display.setCursor(0,24);
  display.setTextSize(1);
  display.println("Selam");
  display.display();
  delay(5000);
}

void yok(){
  display.clearDisplay();

  // Display Text
  display.clearDisplay();
  display.setTextColor(WHITE);
  display.setCursor(0,24);
  display.setTextSize(3);
  display.println("Yok");
  display.display();
  delay(5000);
}


void loop() {
  if (digitalRead(4)==1)
  { 
    Serial.print("Works");
  }



}