Сборка электронных часов на Wemos D1 Mini

#include <Arduino.h>

/************************************************************** /
                      Made by : Mr. Sottong

****************************************************************/
#include <TimeLib.h>
#include <ESP8266WiFi.h>
#include <WiFiUdp.h>
#include "Ticker.h"

Ticker Timer500ms;



//WiFi variables............................................................
const char ssid[] = "xxx";        //your network SSID (name)
const char pass[] = "yyy";       // your network password

// NTP Servers:
static const char ntpServerName[] = "us.pool.ntp.org";
//static const char ntpServerName[] = "time-b.timefreq.bldrdoc.gov";//static const char ntpServerName[] = "time-a.timefreq.bldrdoc.gov";
// static const char ntpServerName[] = "server 0.id.pool.ntp.org";

float timeZone = 7;  //+7 GMT

WiFiUDP Udp;
unsigned int localPort = 8888;  // local port to listen for UDP packets

time_t getNtpTime();
void sendNTPpacket(IPAddress &address);

//OTHER variables................................................................
//Pin connected to ST_CP / Pin 12 of 74HC595
int latchPin = 0; //D3 
//Pin connected to SH_CP / Pin 11 of 74HC595
int clockPin = 5; //D1
////Pin connected to DS / Pin 14 of 74HC595
int dataPin = 4; //D2
//Pin connected to LED
int LEDpin = 2;  //D4

//Seven Segment
unsigned long d1[10] = {0x8140,0xcf40,0x9240,0x8640,0xcc40,0xa440,0xa040,0x8f40,0x8040,0x8440};
unsigned long d2[10] = {0x8120,0xcf20,0x9220,0x8620,0xcc20,0xa420,0xa020,0x8f20,0x8020,0x8420};
unsigned long d3[10] = {0x8110,0xcf10,0x9210,0x8610,0xcc10,0xa410,0xa010,0x8f10,0x8010,0x8410};
unsigned long d4[10] = {0x8108,0xcf08,0x9208,0x8608,0xcc08,0xa408,0xa008,0x8f08,0x8008,0x8408};

bool Led = 0;

/*-------- NTP code ----------*/

const int NTP_PACKET_SIZE = 48; // NTP time is in the first 48 bytes of message
byte packetBuffer[NTP_PACKET_SIZE]; //buffer to hold incoming & outgoing packets

time_t getNtpTime() {
  IPAddress ntpServerIP; // NTP server's ip address

  while (Udp.parsePacket() > 0) ; // discard any previously received packets
  // get a random server from the pool
  WiFi.hostByName(ntpServerName, ntpServerIP);
  sendNTPpacket(ntpServerIP);
  uint32_t beginWait = millis();
  while (millis() - beginWait < 1600) {
    int size = Udp.parsePacket();
    if (size >= NTP_PACKET_SIZE) {
      Udp.read(packetBuffer, NTP_PACKET_SIZE);  // read packet into the buffer
      unsigned long secsSince1900;
      // convert four bytes starting at location 40 to a long integer
      secsSince1900 =  (unsigned long)packetBuffer[40] << 24;
      secsSince1900 |= (unsigned long)packetBuffer[41] << 16;
      secsSince1900 |= (unsigned long)packetBuffer[42] << 8;
      secsSince1900 |= (unsigned long)packetBuffer[43];
      return secsSince1900 - 2208988800UL + timeZone * SECS_PER_HOUR;
    }
  }
  return 0; // return 0 if unable to get the time
}

// send an NTP request to the time server at the given address
void sendNTPpacket(IPAddress &address) {
  // set all bytes in the buffer to 0
  memset(packetBuffer, 0, NTP_PACKET_SIZE);
  // Initialize values needed to form NTP request
  // (see URL above for details on the packets)
  packetBuffer[0] = 0b11100011;   // LI, Version, Mode
  packetBuffer[1] = 0;     // Stratum, or type of clock
  packetBuffer[2] = 6;     // Polling Interval
  packetBuffer[3] = 0xEC;  // Peer Clock Precision
  // 8 bytes of zero for Root Delay & Root Dispersion
  packetBuffer[12] = 49;
  packetBuffer[13] = 0x4E;
  packetBuffer[14] = 49;
  packetBuffer[15] = 52;
  // all NTP fields have been given values, now
  // you can send a packet requesting a timestamp:
  Udp.beginPacket(address, 123); //NTP requests are to port 123
  Udp.write(packetBuffer, NTP_PACKET_SIZE);
  Udp.endPacket();
}

void printDigits(int value) {
  int th = value / 1000;
  int hun = value / 100;
  int tens = value / 10;

  // if (th == 0) {
  //   thByte = 0;
  // }
  // else {
  //   thByte = th % 10;
  // }


  digitalWrite(latchPin, LOW);  //THOUSANDS - Ribuan - jam
  shiftOut(dataPin, clockPin, LSBFIRST, d4[th]); 
  shiftOut(dataPin, clockPin, LSBFIRST, d4[th]>>8); 
  digitalWrite(latchPin, HIGH);
  delay(1);

  digitalWrite(latchPin, LOW);  //HUNDREDS - Ratusan - jam
  shiftOut(dataPin, clockPin, LSBFIRST, d3[hun % 10]); 
  shiftOut(dataPin, clockPin, LSBFIRST, d3[hun % 10]>>8);
  digitalWrite(latchPin, HIGH);
  delay(1);

  digitalWrite(latchPin, LOW);  //TENS - Puluhan - menit
  shiftOut(dataPin, clockPin, LSBFIRST, d2[tens % 10]); 
  shiftOut(dataPin, clockPin, LSBFIRST, d2[tens % 10]>>8);
  digitalWrite(latchPin, HIGH);
  delay(1);

  digitalWrite(latchPin, LOW);  //ONES - satuan - menit
  shiftOut(dataPin, clockPin, LSBFIRST, d1[(value % 10)]); 
  shiftOut(dataPin, clockPin, LSBFIRST, d1[(value % 10)]>>8);
  digitalWrite(latchPin, HIGH);
  delay(1);
}

void wifinc(){

//animation when wifi is not connected

int on = 0b0000000001111000;
int off = 0b0000000000000000;

digitalWrite(latchPin, LOW);  
shiftOut(dataPin, clockPin, LSBFIRST, on); 
shiftOut(dataPin, clockPin, LSBFIRST, on>>8); 
digitalWrite(latchPin, HIGH);
delay(100);
digitalWrite(latchPin, LOW);  
shiftOut(dataPin, clockPin, LSBFIRST, off); 
shiftOut(dataPin, clockPin, LSBFIRST, off>>8); 
digitalWrite(latchPin, HIGH);
delay(100);

}

void Setiap500ms(){
  Led = !Led;
}

void setup() {
  //Serial begin
  Serial.begin(115200);

  //set pins to output so you can control the shift register
  pinMode(latchPin, OUTPUT);
  pinMode(clockPin, OUTPUT);
  pinMode(dataPin, OUTPUT);
  pinMode(LEDpin, OUTPUT);
  Udp.begin(localPort);
  WiFi.begin(ssid, pass);
  while (WiFi.status() != WL_CONNECTED) {
    delay ( 500 );
    Serial.print ( "." );
    wifinc();
  }

  setSyncProvider(getNtpTime);
  setSyncInterval(360);
  if (hour() == 0 && second() < 3) {
    setSyncProvider(getNtpTime);
  }

Timer500ms.attach_ms (500,Setiap500ms);  

}

void loop() {

  printDigits(int(hour() * 100 + minute()));  
  digitalWrite(LEDpin,Led); //Led Detik
  if(Led == 1){
    Serial.println(int(hour() * 100 + minute()));
  }
}