#include <Arduino.h>
#include <Wire.h>
#include <U8g2lib.h>

// Initialize OLED Display
U8G2_SSD1306_128X64_NONAME_F_HW_I2C u8g2(U8G2_R0, /* reset=*/U8X8_PIN_NONE);

void setup() {
 // Serial.begin(115200);
  u8g2.begin();
  Display_Centered_Lines();
}

void loop() {
}

void Display_Centered_Lines() {
  u8g2.firstPage();
  do {
    // Draw Horizontal Line (2px height) in the center
    u8g2.drawBox(0, (64 / 2) - 1, 128, 2);

    // Draw Vertical Line (2px width) in the center
    u8g2.drawBox((128 / 2) - 1, 0, 2, 64);

  } while (u8g2.nextPage());
}