#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
Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire);

// 'wifi by Freepik', 40x40px
const unsigned char wifiIcon [] PROGMEM = {
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0x00, 0x00, 0x00, 0x07, 0xff, 0xe0, 0x00, 0x00, 0x7f, 
  0xff, 0xfe, 0x00, 0x01, 0xff, 0xff, 0xff, 0x80, 0x03, 0xff, 0xff, 0xff, 0xc0, 0x0f, 0xff, 0xff, 
  0xff, 0xf0, 0x1f, 0xff, 0xff, 0xff, 0xf8, 0x7f, 0xfc, 0x00, 0x3f, 0xfe, 0xff, 0xe0, 0x00, 0x07, 
  0xff, 0xff, 0x87, 0xff, 0xe1, 0xff, 0x7f, 0x1f, 0xff, 0xf8, 0xff, 0x7e, 0x7f, 0xff, 0xfe, 0x7e, 
  0x3c, 0xff, 0xff, 0xff, 0x3c, 0x01, 0xff, 0xff, 0xff, 0x80, 0x03, 0xff, 0xe7, 0xff, 0xc0, 0x03, 
  0xfe, 0x00, 0x3f, 0xe0, 0x03, 0xf8, 0x7e, 0x1f, 0xc0, 0x01, 0xe3, 0xff, 0xc7, 0x80, 0x00, 0xc7, 
  0xff, 0xe3, 0x00, 0x00, 0x0f, 0xff, 0xf0, 0x00, 0x00, 0x1f, 0xff, 0xf8, 0x00, 0x00, 0x1f, 0xff, 
  0xf8, 0x00, 0x00, 0x0f, 0xc3, 0xf0, 0x00, 0x00, 0x07, 0x81, 0xe0, 0x00, 0x00, 0x03, 0x3c, 0xc0, 
  0x00, 0x00, 0x00, 0x7e, 0x00, 0x00, 0x00, 0x00, 0xff, 0x00, 0x00, 0x00, 0x00, 0xff, 0x00, 0x00, 
  0x00, 0x00, 0xff, 0x00, 0x00, 0x00, 0x00, 0xff, 0x00, 0x00, 0x00, 0x00, 0x7e, 0x00, 0x00, 0x00, 
  0x00, 0x3c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
};

void setup() {
  Serial.begin(9600);

  // SSD1306_SWITCHCAPVCC = generate display voltage from 3.3V internally
  if(!display.begin(SSD1306_SWITCHCAPVCC, 0x3C)) { 
    Serial.println(F("SSD1306 allocation failed"));
    for(;;); 
  }
  
  // just intro
  display.clearDisplay();
  display.setTextColor(WHITE);
  display.setTextSize(1);
  display.setCursor(38,20);  display.println(F("ARDUCODING"));
  display.setCursor(39,35);  display.println(F("TEST ICON"));
  display.display(); //tampilkan data
  delay(3000); 
  display.clearDisplay(); //clear sebelum tampilan baru
  display.drawBitmap(44, 15, wifiIcon, 40, 40, WHITE); 
  display.display(); //tampilkan data
}

void loop() {
}