#include <Adafruit_SSD1306.h>
#include <Wire.h>
#include <WiFi.h>
#define SCREEN_WIDTH 128 // OLED display width, in pixels
#define SCREEN_HEIGHT 64 // OLED display height, in pixels
#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() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  Serial.println("Hello, woonsen");
   if (!display.begin(SSD1306_SWITCHCAPVCC, SCREEN_ADDRESS)) {
    Serial.println(F("SSD1306 allocation failed"));
    for (;;); // Don't proceed, loop forever
  }
  
set_Display(0);
}
int i=0;
void loop()
 {
  delay(200);
  i++;
  set_Display(i);
 }


void set_Display(int smg)
{
  display.clearDisplay();
  display.setTextSize(1);           
  display.setTextColor(SSD1306_WHITE);      
  display.setCursor(0,0); 
  display.println(smg);
  display.display();
}