#include "U8glib.h"

U8GLIB_SSD1306_128X64 u8g(U8G_I2C_OPT_DEV_0 | U8G_I2C_OPT_NO_ACK | U8G_I2C_OPT_FAST); // Fast I2C / TWI

int selected = 1;
int sayfa = 1;

void setup() {
  pinMode(12, INPUT);
  pinMode(11, INPUT);
  pinMode(10, INPUT);
  u8g.setFont(u8g_font_tpssb);
  u8g.setColorIndex(1);
}

void loop() {
  u8g.firstPage();
  do {

    if (sayfa == 1) {
    u8g.drawStr(13, 11, "menu 1");
    u8g.drawStr(3, (selected * 11), ">");
    u8g.drawStr(13, 22, "menu 2");
  }
  if (sayfa == 2) {
    u8g.drawStr(0, 11, "sayfa2");
  }
  if (sayfa == 3) {
    u8g.drawStr(0, 11, "sayfa3");
  }
  } while ( u8g.nextPage() );



// seçilen buton
  if (digitalRead(11) == HIGH) {
    selected += 1;
    delay(200); // Wait for 200 millisecond(s)
  }
  if (digitalRead(12) == HIGH) {
    selected -= 1;
    delay(200); // Wait for 200 millisecond(s)
  }
  if (digitalRead(10) == HIGH && sayfa == 1 && selected == 1) {
    sayfa = 2;
    delay(200); // Wait for 200 millisecond(s)
  }
  if (digitalRead(10) == HIGH && sayfa == 1 && selected == 2) {
    sayfa = 3;
    delay(200); // Wait for 200 millisecond(s)
  }
    if (2 < selected) {
    selected = 1;
  }
  if (selected < 1) {
    selected = 2;
  }


}