#if defined(ESP8266) 
#include <ESP8266WiFi.h> 
#elif defined(ESP32) 
#include <WiFi.h> 
#endif 
 
#include <Wire.h> 
#include <Adafruit_GFX.h> 
#include <Adafruit_SSD1306.h> 
 
#define SCREEN_WIDTH 128  
#define SCREEN_HEIGHT 64  
 
Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, -1); 
 
void setup() { 
  display.begin(SSD1306_SWITCHCAPVCC, 0x3C); 
} 
 
void loop() { 
  // put your main code here, to run repeatedly: 
  display.clearDisplay(); 
  display.setTextSize(1);              
  display.setTextColor(WHITE);         
  display.setCursor(0,20);              
  display.println("IoT is Fun :)"); 
  display.setCursor(0,30);              
  display.println("Welcome to Lab 102C"); 
  display.display(); 
  delay(2000); 
}