WiFi时钟

#include <ESP8266WiFi.h>
#include <TimeLib.h>
#include <NtpClientLib.h>
#include <U8g2lib.h>
#include <Wire.h>
#include <SimpleTimer.h>

int8_t timeZone = 8;
const PROGMEM char *ntpServer = "ntp1.aliyun.com";
U8G2_SSD1306_128X64_NONAME_F_HW_I2C u8g2(U8G2_R0, U8X8_PIN_NONE);
SimpleTimer timer;

void Simple_timer_1() {
  u8g2.firstPage();
  do
  {
    page1();
  }while(u8g2.nextPage());
}

void page1() {
  u8g2.setFont(u8g2_font_wqy16_t_gb2312);
  u8g2.setFontPosTop();
  u8g2.setCursor(0,0);
  u8g2.print(String(NTP.getDateYear()) + String("年") + String(NTP.getDateMonth()) + String("月") + String(NTP.getDateDay()) + String("日"));
  u8g2.setFont(u8g2_font_timB24_tf);
  u8g2.setFontPosTop();
  u8g2.setCursor(0,20);
  u8g2.print(String(NTP.getTimeHour24()) + String(":") + String(NTP.getTimeMinute()) + String(":") + String(NTP.getTimeSecond()));
}

void setup(){
  WiFi.begin("dorobz", "doro2020");
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }

  NTP.setInterval (600);
  NTP.setNTPTimeout (1500);
  NTP.begin (ntpServer, timeZone, false);
  u8g2.setI2CAddress(0x3C*2);
  u8g2.begin();
  timer.setInterval(1000L, Simple_timer_1);

  u8g2.enableUTF8Print();

}

void loop(){
  timer.run();

}