// Hobby Projects
// 30-08-2019 NodeMcu_NTP_Propeller_Clock. (using 44E/A3144 Hall Sensor)

#include <NTPClient.h>
#include <ESP8266WiFi.h>
#include <WiFiUdp.h>
const char *ssid     = "Your_SSID";
const char *password = "Your_PASSWORD";
const long utcOffsetInSeconds = 19800;    // Calculating Time with Time Zones:  https://docstore.mik.ua/orelly/webprog/pcook/ch03_12.htm
int LED1 = D0;
int LED2 = D1;
int LED3 = D2;
int LED4 = D3;
int LED5 = D4;
int LED6 = D5;
int LED7 = D6;
int LED8 = D8;
int sensorPin = D7; 
byte Day,hours,minutes,seconds = 0;
byte a,c,z = 0;
unsigned int k,dl,nm;
unsigned long tc,to = 0;
int i,val;
char s;

const PROGMEM  unsigned char data[]={
0x3e,0x45,0x49,0x51,0x3e,0x00,0x00,0x21,0x7f,0x01,0x00,0x00,0x21,0x43,0x45,0x49,0x31,0x00,0x42,0x41,0x51,0x69,0x46,0x00,
0x0c,0x14,0x24,0x7f,0x04,0x00,0x72,0x51,0x51,0x51,0x5e,0x00,0x1e,0x29,0x49,0x49,0x06,0x00,0x40,0x47,0x48,0x50,0x60,0x00,
0x36,0x49,0x49,0x49,0x36,0x00,0x30,0x49,0x49,0x4a,0x3c,0x00,0x00,0x36,0x36,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x31,0x49,0x49,0x49,0x46,0x00,0x1e,0x01,0x01,0x02,0x1f,0x00,0x1f,0x08,0x10,0x10,0x0f,0x00,0x0e,0x11,0x11,0x09,0x7f,0x00,
0x02,0x15,0x15,0x15,0x0f,0x00,0x18,0x05,0x05,0x05,0x1e,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x7f,0x20,0x18,0x20,0x7f,0x00,0x0e,0x11,0x11,0x11,0x0e,0x00,0x1f,0x08,0x10,0x10,0x0f,0x00,
0x0e,0x11,0x11,0x09,0x7f,0x00,0x02,0x15,0x15,0x15,0x0f,0x00,0x18,0x05,0x05,0x05,0x1e,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x40,0x40,0x7f,0x40,0x40,0x00,0x1e,0x01,0x01,0x02,0x1f,0x00,
0x0e,0x15,0x15,0x15,0x0c,0x00,0x09,0x15,0x15,0x15,0x02,0x00,0x0e,0x11,0x11,0x09,0x7f,0x00,0x02,0x15,0x15,0x15,0x0f,0x00,
0x18,0x05,0x05,0x05,0x1e,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x7e,0x01,0x0e,0x01,0x7e,0x00,0x0e,0x15,0x15,0x15,0x0c,0x00,
0x0e,0x11,0x11,0x09,0x7f,0x00,0x1f,0x08,0x10,0x10,0x0f,0x00,0x0e,0x15,0x15,0x15,0x0c,0x00,0x09,0x15,0x15,0x15,0x02,0x00,
0x0e,0x11,0x11,0x09,0x7f,0x00,0x02,0x15,0x15,0x15,0x0f,0x00,0x18,0x05,0x05,0x05,0x1e,0x00,0x40,0x40,0x7f,0x40,0x40,0x00,
0x7f,0x08,0x10,0x10,0x0f,0x00,0x1e,0x01,0x01,0x02,0x1f,0x00,0x1f,0x08,0x10,0x10,0x08,0x00,0x09,0x15,0x15,0x15,0x02,0x00,
0x0e,0x11,0x11,0x09,0x7f,0x00,0x02,0x15,0x15,0x15,0x0f,0x00,0x18,0x05,0x05,0x05,0x1e,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x7f,0x48,0x48,0x48,0x40,0x00,0x1f,0x08,0x10,0x10,0x08,0x00,0x00,0x11,0x5f,0x01,0x00,0x00,
0x0e,0x11,0x11,0x09,0x7f,0x00,0x02,0x15,0x15,0x15,0x0f,0x00,0x18,0x05,0x05,0x05,0x1e,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x31,0x49,0x49,0x49,0x46,0x00,0x02,0x15,0x15,0x15,0x0f,0x00,0x10,0x7e,0x11,0x01,0x02,0x00,
0x1e,0x01,0x01,0x02,0x1f,0x00,0x1f,0x08,0x10,0x10,0x08,0x00,0x0e,0x11,0x11,0x09,0x7f,0x00,0x02,0x15,0x15,0x15,0x0f,0x00,
0x18,0x05,0x05,0x05,0x1e,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x7e,0x01,0x0e,0x01,0x7e,0x00,
0x0e,0x15,0x15,0x15,0x0c,0x00,0x00,0x41,0x7f,0x01,0x00,0x00,0x0e,0x11,0x11,0x11,0x02,0x00,0x0e,0x11,0x11,0x11,0x0e,0x00,
0x1f,0x10,0x0c,0x10,0x0f,0x00,0x0e,0x15,0x15,0x15,0x0c,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x7e,0x01,0x0e,0x01,0x7e,0x00,
0x7e,0x01,0x0e,0x01,0x7e,0x00,0x7e,0x01,0x0e,0x01,0x7e,0x00,0x00,0x03,0x03,0x00,0x00,0x00,0x7f,0x08,0x10,0x10,0x0f,0x00,
0x0e,0x11,0x11,0x11,0x0e,0x00,0x7f,0x09,0x11,0x11,0x0e,0x00,0x7f,0x09,0x11,0x11,0x0e,0x00,0x18,0x05,0x05,0x05,0x1e,0x00,
0x1f,0x14,0x14,0x14,0x08,0x00,0x1f,0x08,0x10,0x10,0x08,0x00,0x0e,0x11,0x11,0x11,0x0e,0x00,0x02,0x01,0x11,0x5e,0x00,0x00,
0x0e,0x15,0x15,0x15,0x0c,0x00,0x0e,0x11,0x11,0x11,0x02,0x00,0x10,0x7e,0x11,0x01,0x02,0x00,0x09,0x15,0x15,0x15,0x02,0x00,
0x00,0x03,0x03,0x00,0x00,0x00,0x0e,0x11,0x11,0x11,0x02,0x00,0x0e,0x11,0x11,0x11,0x0e,0x00,0x1f,0x10,0x0c,0x10,0x0f,0x00};

WiFiUDP ntpUDP;
NTPClient timeClient(ntpUDP, "pool.ntp.org", utcOffsetInSeconds);

void setup(){
  pinMode(LED1,OUTPUT);  
  pinMode(LED2,OUTPUT);  
  pinMode(LED3,OUTPUT);  
  pinMode(LED4,OUTPUT);  
  pinMode(LED5,OUTPUT);  
  pinMode(LED6,OUTPUT);  
  pinMode(LED7,OUTPUT);  
  pinMode(LED8,OUTPUT);   
  pinMode(sensorPin,INPUT_PULLUP);     
  Serial.begin(9600);
  WiFi.begin(ssid, password);
  while ( WiFi.status() != WL_CONNECTED ) {
  delay ( 500 );
  Serial.print ( "." );
  digitalWrite(LED2,HIGH);
  delay(250);
  digitalWrite(LED2,LOW);
  delay(250);      
  }
  timeClient.begin();
  update_time(); 
  Serial.println(timeClient.getFormattedTime());
  attachInterrupt(digitalPinToInterrupt(sensorPin),usdl,RISING);     
}

void loop()
{
 if(z == 0)
 {
   val = digitalRead(sensorPin);
   if(val == LOW)
  {
  z = 1;
  update_time();     
  k = Day * 54;
  i = 0;
  while(i < 54)
 { 
  c = (pgm_read_byte(&(data+k+66)[i])); 
  display_col();
  delayMicroseconds(dl); 
  displayClear();
  delayMicroseconds(dl*2);     
  i++; 
 }
  delayMicroseconds(dl*45);
  nm = seconds;
  nm = nm%10;
  display1();
  delayMicroseconds(dl*2);
  nm = seconds/10;
  nm = nm%10;
  display1();
  delayMicroseconds(dl*2);    
  nm = 10;
  display1();
  delayMicroseconds(dl*2);
  nm = minutes;
  nm = nm%10;
  display1();
  delayMicroseconds(dl*2);
  nm = minutes/10;
  nm = nm%10;
  display1();
  delayMicroseconds(dl*2);
  nm = 10;
  display1();
  delayMicroseconds(dl*2);  
  nm = hours;
  nm = nm%10;
  display1();
  delayMicroseconds(dl*2);    
  nm = hours/10;
  nm = nm%10;
  display1();  
  }
  }
  if(z == 1)
  { 
  val = digitalRead(sensorPin); 
    if(val == HIGH)
  {
    z = 0;
  }
  }  
}

void display1()
{
  k = nm*6;
  i = 5;
  while(i >= 0)
 { 
  c = (pgm_read_byte(&(data+k)[i])); 
  s=0;
    for(a = 0; a < 8; a++)
    {
    s <<= 1;
    s |= c & 1;
    c >>= 1;
    }
  s >>= 1;
  c = s;
  display_col();
  delayMicroseconds(dl); 
  displayClear();
  delayMicroseconds(dl*2);     
  i--; 
 }  
}

void displayClear()
  {
  digitalWrite(LED1,LOW);
  digitalWrite(LED2,LOW);
  digitalWrite(LED3,LOW);
  digitalWrite(LED4,LOW);
  digitalWrite(LED5,LOW);
  digitalWrite(LED6,LOW);
  digitalWrite(LED7,LOW);
  digitalWrite(LED8,LOW);
  }
  
void display_col()
{
  if(c & 1)
  digitalWrite(LED2,HIGH);
  else
  digitalWrite(LED2,LOW);  
  if(c & 2)
  digitalWrite(LED3,HIGH);
  else
  digitalWrite(LED3,LOW);  
  if(c & 4)
  digitalWrite(LED4,HIGH);
  else
  digitalWrite(LED4,LOW); 
  if(c & 8)
  digitalWrite(LED5,HIGH);
  else
  digitalWrite(LED5,LOW);  
  if(c & 16)
  digitalWrite(LED6,HIGH);
  else
  digitalWrite(LED6,LOW);
  if(c & 32)
  digitalWrite(LED7,HIGH);
  else
  digitalWrite(LED7,LOW);
  if(c & 64)
  digitalWrite(LED8,HIGH);
  else
  digitalWrite(LED8,LOW); 
}
void update_time()
    {
    timeClient.update();    
    Day = timeClient.getDay();
    hours=timeClient.getHours();
    minutes=(timeClient.getMinutes());
    seconds=(timeClient.getSeconds());
    }
void usdl()
{    
  tc = micros()-to;
  to = micros(); 
  dl = tc/450;
}