Tutorial Membuat Setting Waktu Alarm Waktu NTP

 

/*
  Program NTP dengan Setting alarm menggunakan Telegram
 */

#include <TimeLib.h>
#include <ESP8266WiFi.h>
#include <WiFiUdp.h>
#include "CTBot.h" //Pendeklarasian Library
CTBot myBot;
#define alarm D1
#define button D2



int jamAlarm;
int menitAlarm;

TBMessage msg;
const char ssid[] = "**********";  //  your network SSID (name)
const char pass[] = "*********";       // your network password
String token = "XXXX";    //token bot baru kalian
const int id = 11111111111;      //id telegram kalian


// NTP Servers:
static const char ntpServerName[] = "us.pool.ntp.org";
const int timeZone = 7;     // Central European Time
WiFiUDP Udp;
unsigned int localPort = 8888;  // local port to listen for UDP packets

time_t getNtpTime();
void digitalClockDisplay();
void printDigits(int digits);
void sendNTPpacket(IPAddress &address);

void setup()
{
  Serial.begin(9600);
  pinMode(alarm, OUTPUT);
  pinMode(button,INPUT_PULLUP);
  while (!Serial) ; // Needed for Leonardo only
  delay(250);
  Serial.println("TimeNTP Example");
  Serial.print("Connecting to ");
  Serial.println(ssid);
  WiFi.begin(ssid, pass);
  myBot.setTelegramToken(token);
  
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }

  Serial.print("IP number assigned by DHCP is ");
  Serial.println(WiFi.localIP());
  Serial.println("Starting UDP");
  Udp.begin(localPort);
  Serial.print("Local port: ");
  Serial.println(Udp.localPort());
  Serial.println("waiting for sync");
  setSyncProvider(getNtpTime);
  setSyncInterval(300);
 
  myBot.sendMessage(msg.sender.id, (String)"Setting Waktu Alarm \n" +
        "kirimkan pesan >>> alarm=(jam):(menit \n"+
        "Contoh >> alarm=03:30 \n"
        );
}

time_t prevDisplay = 0; // when the digital clock was displayed

void loop()
{
  if (timeStatus() != timeNotSet) {
    if (now() != prevDisplay) { //update the display only if time has changed
      prevDisplay = now();
      digitalClockDisplay();
    }
  }
  if (hour() == jamAlarm && minute() == menitAlarm)  digitalWrite(alarm, HIGH);
  if (digitalRead(button) == HIGH) digitalWrite(alarm, LOW);
  telegram();
}

void telegram() {
  if (myBot.getNewMessage(msg)) {
    String a = msg.text;
    int b = a.indexOf("alarm=");
    int c = a.indexOf(":");
    if ( b > -1) {
    jamAlarm = a.substring(b+1,c).toInt();
    menitAlarm = a.substring(c).toInt();
    myBot.sendMessage(msg.sender.id, (String)"Alarm Pukul ="+jamAlarm+":"+menitAlarm);
    }

    else {                                         
        myBot.sendMessage(msg.sender.id, (String)"Memutar Musik dengan Mengirim Berikut \n" +
        "kirimkan pesan >>> putar(nomor yang ingin di play) \n"+
        "Maksimal 10 \n\n"+
        "Matikan Musik >>> stop"
        );
    }
}
}

void digitalClockDisplay()
{
  // digital clock display of the time
  Serial.print(hour());
  printDigits(minute());
  printDigits(second());
  Serial.print(" ");
  Serial.print(day());
  Serial.print(".");
  Serial.print(month());
  Serial.print(".");
  Serial.print(year());
  Serial.println();
}

void printDigits(int digits)
{
  // utility for digital clock display: prints preceding colon and leading 0
  Serial.print(":");
  if (digits < 10)
    Serial.print('0');
  Serial.print(digits);
}

/*-------- 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
  Serial.println("Transmit NTP Request");
  // get a random server from the pool
  WiFi.hostByName(ntpServerName, ntpServerIP);
  Serial.print(ntpServerName);
  Serial.print(": ");
  Serial.println(ntpServerIP);
  sendNTPpacket(ntpServerIP);
  uint32_t beginWait = millis();
  while (millis() - beginWait < 1500) {
    int size = Udp.parsePacket();
    if (size >= NTP_PACKET_SIZE) {
      Serial.println("Receive NTP Response");
      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;
    }
  }
  Serial.println("No NTP Response :-(");
  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();
}