WiFi NodeMCU ESP8266 Google Clock

A simple easy WiFi clock using "Google" timestamp, with temperature and humidity. Oct2020 update: bug fixing and automatic brightness

Oct 9, 2020

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Components and supplies

DHT22 Temperature Sensor

Resistor 10k ohm

Breadboard (generic)

NodeMCU ESP8266 Breakout Board

LDR, 5 Mohm

Jumper wires (generic)

MAXREFDES99# MAX7219 Display Driver Shield

Project description

Code

WiFi NodeMCU ESP8266 Google Clock - v.11 Oct2020

arduino

1
2//V.3 - Data converted and daylight savings time
3//V.4 - localized   data, days... (use yours....)
4//V.6 - thermometer and hygrometer
5//V.7 - animated   clock corrected + seconds +1,5
6//V.8 - tuning thermometer and hygrometer
7//v.9   - DST corrected / compiler error corrected (long)round
8//v.10 - Date change at   00:00 corrected for GMT>0
9//v.11 - automitc panel brightness  (+3.3V ---|==10k==|---A0---|GND   
10// review: anthias64@gmail.com
11// kudos original maker code can't find its   name...
12
13#include "Arduino.h"
14#include <ArduinoJson.h>
15#include <ESP8266WiFi.h>   //ESP8266 Core WiFi Library (you most likely already have this in your sketch)
16
17WiFiClient   client;
18
19#define NUM_MAX 6
20
21// for NodeMCU 1.0
22#define DIN_PIN 13   // D7
23#define CS_PIN  0  // D3
24#define CLK_PIN 14  // D5
25
26#include   "max7219.h"
27#include "fonts.h"
28
29#include "DHT.h" // sensor DHT
30
31//   DHT sensor
32#define DHTPIN 12     // what pin we're connected to // GPIO 12 =   D6
33// Uncomment whatever type you're using!
34//#define DHTTYPE DHT11   // DHT   11 
35#define DHTTYPE DHT22   // DHT 22  (AM2302)
36//#define DHTTYPE DHT21   //   DHT 21 (AM2301)
37
38DHT dht(DHTPIN, DHTTYPE, 11); // for ESP8266
39
40//DHT
41float   temperature = 0;
42int temp = 0;
43byte minus = 0;
44int umidity = 0;
45int   poz, poz2;
46int mult = 0;
47
48float temp_offset = -1.0; // taratura termometro
49float   rh_offset = +3; // taratura igrometro
50
51char TempLabel[] = "    Temperatura:   "; // Fixxed text
52char UmiLabel[] = "    Umidita':  "; // Fixxed text
53
54//modifica   test ip
55
56const char ssid[] = "xxxxxxxxx";                     //  your network   SSID (name) <--------------
57const char password[] = "xxxxxxxxxxxxxxxxxx";       //   your network password      <--------------
58
59// Localized Months and DoWeek
60
61String   M_arr[13] = {" ", "Gennaio", "Febbraio", "Marzo", "Aprile", "Maggio",   "Giugno", "Luglio", "Agosto", "Settembre", "Ottobre", "Novembre", "Dicembre"};
62String   Dow_arr[8] = {" ", "Lunedi", "Martedi", "Mercoledi", "Giovedi", "Venerdi",   "Sabato", "Domenica"};
63
64void setup() 
65{
66  Serial.begin(115200);
67
68   initMAX7219(); //
69  sendCmdAll(CMD_SHUTDOWN,1); //
70  sendCmdAll(CMD_INTENSITY,1);   // brightness from 1 to 5
71   
72  Serial.print("Connecting to ");
73  Serial.println(ssid);
74   
75  WiFi.begin(ssid, password);
76
77  printStringWithShift("Connecting",30);   //
78  delay (1000);
79  
80  while (WiFi.status() != WL_CONNECTED) {
81    delay(500);
82     Serial.print(".");
83  }
84
85  
86  Serial.print("IP number assigned   by DHCP is ");
87  Serial.println(WiFi.localIP());
88
89  printStringWithShift((String("   IP:")+WiFi.localIP().toString()).c_str(), 30);//
90  delay(1000);//
91
92   // DHT
93  
94
95dht.begin();
96temperature = dht.readTemperature() + temp_offset;
97umidity   = dht.readHumidity() + rh_offset;
98
99Serial.print(temperature);
100Serial.println("   gr.Celsius");
101
102Serial.print(umidity);
103Serial.println(" %RH");
104
105   if (temperature < 0)
106   {
107    temp = -10*temperature;
108    minus = 1;
109    }
110   else
111   {
112    minus = 0;
113    temp = 10*temperature;
114   }
115     
116}
117
118
119// =============================DEFINE VARS==============================
120#define   MAX_DIGITS 20
121byte dig[MAX_DIGITS]={0};
122byte digold[MAX_DIGITS]={0};
123byte   digtrans[MAX_DIGITS]={0};
124int updCnt = 0;
125int dots = 0;
126long dotTime =   0;
127long clkTime = 0;
128int dx=0;
129int dy=0;
130byte del=0;
131int h,m,s;
132float   utcOffset = +1; // ==> your timezone
133long localEpoc = 0;
134long localMillisAtUpdate   = 0;
135int day, month, year, dayOfWeek;
136int monthnum = 0;
137int downum = 0;
138int   summerTime = 0;
139String date; 
140String dayloc; 
141String monthloc; 
142
143
144//   =======================================================================
145
146void   loop()
147{
148  if(updCnt<=0) { // every 10 scrolls, ~450s=7.5m
149    updCnt =   60;
150    Serial.println("Getting data ...");
151    // clr();
152    printStringWithShift("    Get Time...",30);
153    getTime();
154    Serial.println("Data loaded");
155     clkTime = millis();
156    
157  }
158
159  contrast(); // //autobrightness
160
161//print   data
162 
163  if(millis()-clkTime > 30000 && !del && dots) { // clock for 30s,   then scrolls for about 30s
164   printStringWithShift("            ",40);       //Space   before
165   printStringWithShift(date.c_str(),40);         //data1
166
167// Reading   temperature or humidity 
168    int umidity = dht.readHumidity()+ rh_offset;
169     float temperature = dht.readTemperature()+ temp_offset; 
170    
171    //umidity   = umidity + rh_offset;
172    //temperature = temperature + temp_offset;
173    
174     Serial.println("Temp e Umid corretti");
175    Serial.println(temperature);
176     Serial.println(umidity);
177    
178    int t2 = 10*temperature; 
179
180//   print temperature
181
182// http://www.arduino-hacks.com/converting-integer-to-character-vice-versa/
183char   c[3], d[2]; 
184String str1, str2;
185int t2z = t2/10;
186int t2u = t2 - t2z*10;
187str1=String(t2z);
188str1.toCharArray(c,3);
189str2=String(t2u);
190str2.toCharArray(d,2);
191printStringWithShift(TempLabel   ,40);  // Send scrolling Text
192printStringWithShift("+" ,40);
193printStringWithShift(c   ,40);
194printStringWithShift("," ,40);
195printStringWithShift(d ,40);
196printStringWithShift("   C^" ,40);
197//delay(2000);
198
199// print umidity
200
201// http://www.arduino-hacks.com/converting-integer-to-character-vice-versa/
202char   b[3];
203String str;
204str=String(umidity);
205str.toCharArray(b,3);
206printStringWithShift(UmiLabel   ,40);  // Send scrolling Text
207printStringWithShift(b ,40);
208printStringWithShift("   %" ,40);
209//delay(2000);
210 
211   printStringWithShift("                 ",40);   //Space after
212   delay(200);                          
213      
214    updCnt--;
215     clkTime = millis();
216  }
217  if(millis()-dotTime > 500) {
218    dotTime   = millis();
219    dots = !dots;
220  }
221  updateTime(); // get time
222
223//   print clock
224  showAnimClock();
225  //showSimpleClock();
226  
227}
228
229//   =======================================================================
230
231void   showSimpleClock()
232{
233  dx=dy=0;
234  clr();
235  showDigit(h/10,  0, dig6x8);
236   showDigit(h%10,  8, dig6x8);
237  showDigit(m/10, 17, dig6x8);
238  showDigit(m%10,   25, dig6x8);
239  showDigit(s/10, 34, dig6x8);
240  showDigit(s%10, 42, dig6x8);
241   setCol(15,dots ? B00100100 : 0);
242  setCol(32,dots ? B00100100 : 0);
243  refreshAll();
244}
245
246//   =======================================================================
247
248void   showAnimClock()
249{
250  byte digPos[6]={0,8,17,25,34,42};
251  int digHt = 12;
252   int num = 6; 
253  int i;
254  if(del==0) {
255    del = digHt;
256    for(i=0;   i<num; i++) digold[i] = dig[i];
257    dig[0] = h/10 ? h/10 : 10;
258    dig[1]   = h%10;
259    dig[2] = m/10;
260    dig[3] = m%10;
261    dig[4] = s/10;
262    dig[5]   = s%10;
263    for(i=0; i<num; i++)  digtrans[i] = (dig[i]==digold[i]) ? 0 : digHt;
264   } else
265    del--;
266  
267  clr();
268  for(i=0; i<num; i++) {
269    if(digtrans[i]==0)   {
270      dy=0;
271      showDigit(dig[i], digPos[i], dig6x8);
272    } else {
273       dy = digHt-digtrans[i];
274      showDigit(digold[i], digPos[i], dig6x8);
275       dy = -digtrans[i];
276      showDigit(dig[i], digPos[i], dig6x8);
277      digtrans[i]--;
278     }
279  }
280  dy=0;
281  setCol(15,dots ? B00100100 : 0);
282  setCol(32,dots   ? B00100100 : 0);
283  refreshAll();
284  delay(10); //default 30
285}
286
287//   =======================================================================
288
289void   showDigit(char ch, int col, const uint8_t *data)
290{
291  if(dy<-8 | dy>8) return;
292   int len = pgm_read_byte(data);
293  int w = pgm_read_byte(data + 1 + ch * len);
294   col += dx;
295  for (int i = 0; i < w; i++)
296    if(col+i>=0 && col+i<8*NUM_MAX)   {
297      byte v = pgm_read_byte(data + 1 + ch * len + 1 + i);
298      if(!dy)   scr[col + i] = v; else scr[col + i] |= dy>0 ? v>>dy : v<<-dy;
299    }
300}
301
302//   =======================================================================
303
304void   setCol(int col, byte v)
305{
306  if(dy<-8 | dy>8) return;
307  col += dx;
308  if(col>=0   && col<8*NUM_MAX)
309    if(!dy) scr[col] = v; else scr[col] |= dy>0 ? v>>dy : v<<-dy;
310}
311
312//   =======================================================================
313
314int   showChar(char ch, const uint8_t *data)
315{
316  int len = pgm_read_byte(data);
317   int i,w = pgm_read_byte(data + 1 + ch * len);
318  for (i = 0; i < w; i++)
319     scr[NUM_MAX*8 + i] = pgm_read_byte(data + 1 + ch * len + 1 + i);
320  scr[NUM_MAX*8   + i] = 0;
321  return w;
322}
323
324// =======================================================================
325
326
327int   dualChar = 0;
328
329unsigned char convertPolish(unsigned char _c)
330{
331  unsigned   char c = _c;
332  if(c==196 || c==197 || c==195) {
333    dualChar = c;
334    return   0;
335  }
336  if(dualChar) {
337    switch(_c) {
338      case 133: c = 1+'~';   break; // ''
339      case 135: c = 2+'~'; break; // ''
340      case 153: c = 3+'~';   break; // ''
341      case 130: c = 4+'~'; break; // ''
342      case 132: c = dualChar==197   ? 5+'~' : 10+'~'; break; // '' and ''
343      case 179: c = 6+'~'; break; // ''
344       case 155: c = 7+'~'; break; // ''
345      case 186: c = 8+'~'; break; //   ''
346      case 188: c = 9+'~'; break; // ''
347      //case 132: c = 10+'~'; break;   // ''
348      case 134: c = 11+'~'; break; // ''
349      case 152: c = 12+'~';   break; // ''
350      case 129: c = 13+'~'; break; // ''
351      case 131: c =   14+'~'; break; // ''
352      case 147: c = 15+'~'; break; // ''
353      case 154:   c = 16+'~'; break; // ''
354      case 185: c = 17+'~'; break; // ''
355      case   187: c = 18+'~'; break; // ''
356      default:  break;
357    }
358    dualChar   = 0;
359    return c;
360  }    
361  switch(_c) {
362    case 185: c = 1+'~'; break;
363     case 230: c = 2+'~'; break;
364    case 234: c = 3+'~'; break;
365    case 179:   c = 4+'~'; break;
366    case 241: c = 5+'~'; break;
367    case 243: c = 6+'~';   break;
368    case 156: c = 7+'~'; break;
369    case 159: c = 8+'~'; break;
370     case 191: c = 9+'~'; break;
371    case 165: c = 10+'~'; break;
372    case   198: c = 11+'~'; break;
373    case 202: c = 12+'~'; break;
374    case 163: c =   13+'~'; break;
375    case 209: c = 14+'~'; break;
376    case 211: c = 15+'~';   break;
377    case 140: c = 16+'~'; break;
378    case 143: c = 17+'~'; break;
379     case 175: c = 18+'~'; break;
380    default:  break;
381  }
382  return c;
383}
384
385
386//   =======================================================================
387
388void   printCharWithShift(unsigned char c, int shiftDelay) {
389  c = convertPolish(c);
390   if (c < ' ' || c > '~'+25) return;
391  c -= 32;
392  int w = showChar(c, font);
393   for (int i=0; i<w+1; i++) {
394    delay(shiftDelay);
395    scrollLeft();
396     refreshAll();
397  }
398}
399
400// =======================================================================
401
402void   printStringWithShift(const char* s, int shiftDelay){
403  while (*s) {
404    printCharWithShift(*s,   shiftDelay);
405    s++;
406  }
407}
408// =======================================================================
409
410void   getTime()
411{
412  WiFiClient client;
413  if (!client.connect("www.google.com",   80)) {
414    Serial.println("connection to google failed");
415    return;
416   }
417
418  client.print(String("GET / HTTP/1.1\
\
419") +
420               String("Host:   www.google.com\
\
421") +
422               String("Connection: close\
\
423\
\
424"));
425   int repeatCounter = 0;
426  while (!client.available() && repeatCounter < 10)   {
427    delay(500);
428    //Serial.println(".");
429    repeatCounter++;
430   }
431
432  String line;
433  client.setNoDelay(false);
434  while(client.connected()   && client.available()) {
435    line = client.readStringUntil('\
436');
437    line.toUpperCase();
438     // Serial.println(line); //test stringa
439    if (line.startsWith("DATE: "))   {
440      //date = "     "+line.substring(6, 22);
441      date =line.substring(6,   22);
442      date.toUpperCase();
443
444      Serial.println(date); //check
445           
446      int day = atoi (date.substring(5,7).c_str()); //day number       
447       int year = 2000 + atoi (date.substring(13,16).c_str()); //year number
448   
449      monthnum = month2index(date.substring(8,11)); // convert month in mumber
450       month = monthnum; //check
451      downum = dow2index(date.substring(0,3));   // convert dow in mumber
452      dayOfWeek = downum; //check
453
454      monthloc   = M_arr[month]; // localize month
455      dayloc = Dow_arr[dayOfWeek]; // localize   DayOfWeek
456
457      date = dayloc + " " + day + " " + monthloc + " " +   year;
458
459
460      
461 //   decodeDate(date); //data3
462      h = line.substring(23,   25).toInt();
463      m = line.substring(26, 28).toInt();
464      s = line.substring(29,   31).toInt()+1.5; //correzione ora
465  
466      // summerTime = checkSummerTime();
467
468//   calcolo ora legale
469
470      Serial.print("Ora GMT: " );
471      Serial.print(h);   //check
472      Serial.print(" : " );
473      Serial.print(m); //check
474      Serial.print("   : " );
475      Serial.print(s); //check
476      Serial.println(""); //check
477       Serial.print("Data: " );
478      Serial.println(date); //check
479
480   //day = 31;
481 //year = 2021;
482 //month = 10;
483
484      if(month>3 && month<=10)   summerTime=1;
485      if(month==3 && day>=31-(((5*year/4)+4)%7) ) summerTime=1;         
486      if(month==10 && day>=31-(((5*year/4)+1)%7) ) summerTime=0;
487       
488     
489      Serial.print("Summertime: ");
490      Serial.println(summerTime);
491       
492
493    unsigned short MoZiff[12] = { 0, 3, 3, 6, 1, 4, 6, 2, 5, 0, 3,   5 }; //Monatsziffer
494    unsigned short Tage_Monat[12] = { 31, 28, 31, 30, 31,   30, 31, 31, 30, 31, 30, 31 };
495        if(h+utcOffset+summerTime>23) {
496   //        if(++day>31) { day=1; month++; };  // needs better patch
497   //       if(++dayOfWeek>7)   dayOfWeek=1; 
498       h = h - 24;
499       dayOfWeek = dayOfWeek +1;
500       if(dayOfWeek>7)   dayOfWeek=1;
501        day = day + 1;
502        if (day > Tage_Monat[month - 1])   {
503            day = 1;
504            month = month + 1;
505            if (month   > 12) {
506                month = 1;
507                year = year + 1;
508            }
509         }    
510        }
511
512      monthloc = M_arr[month]; // localize month
513       dayloc = Dow_arr[dayOfWeek]; // localize DayOfWeek
514
515      date = dayloc   + ",   " + day + " " + monthloc + " " + year;
516     
517      localMillisAtUpdate   = millis();
518      localEpoc = (h * 60 * 60 + m * 60 + s);
519    }
520  }
521   client.stop();
522}
523
524// =======================================================================
525
526//convert   month string in month number 
527
528int month2index (String month) 
529{
530        String   months[12] = {"JAN", "FEB", "MAR", "APR", "MAY", "JUN", "JUL", "AUG",   "SEP", "OCT", "NOV", "DEC"};
531        for (int i = 0; i < 12; i++) {
532                 if (months[i] == month)
533                        return i + 1;   
534                        
535        }
536        return 0;
537}
538
539//   =======================================================================
540
541//convert   dow string in dow number 
542
543int dow2index (String dayOfWeek) 
544{
545        String   dows[7] = {"MON", "TUE", "WED", "THU", "FRI", "SAT", "SUN"};
546        for   (int i = 0; i < 12; i++) {
547                if (dows[i] == dayOfWeek)
548                        return   i + 1;  
549                        
550        }
551        return 0;
552}
553
554//   =======================================================================
555
556//check   if it is summer time
557
558// int checkSummerTime()
559 
560//{
561
562  //if(month>3   && month<10) return 1;
563  //if(month==3 && day>=31-(((5*year/4)+4)%7) ) return   1;
564  //if(month==10 && day<31-(((5*year/4)+1)%7) ) return 0;
565  //return 0;
566
567   // return 1;
568 
569//}
570
571
572
573// =======================================================================
574
575
576
577void   updateTime()
578{
579  long curEpoch = localEpoc + ((millis() - localMillisAtUpdate)   / 1000);
580 //long epoch = round(curEpoch + 3600 * (utcOffset+summerTime) + 86400L)   % 86400L;
581  long epoch = (long)round(curEpoch + 3600 * (utcOffset+summerTime)   + 86400L) % 86400L; // fix compiler error
582   //long epoch = round(curEpoch +   3600 * (utcOffset+summerTime) + 86400L);
583  h = ((epoch  % 86400L) / 3600) % 24;
584   m = (epoch % 3600) / 60;
585  s = epoch % 60;
586 
587     
588}
589
590// =======================================================================
591
592void   contrast()
593{
594  int lumina = analogRead(A0);         //autobrightness (+3.3V   ---|==10k==|---A0---|GND (niq_ro)
595    lumina = map(lumina, 0, 1023, 0, 4); //broghtness   0-4
596    //Serial.print("brightness = ");
597    //Serial.print(lumina);
598     //Serial.println (" / 4");
599    sendCmdAll(CMD_INTENSITY, lumina);
600}
601

//V.3 - Data converted and daylight savings time
//V.4 - localized   data, days... (use yours....)
//V.6 - thermometer and hygrometer
//V.7 - animated   clock corrected + seconds +1,5
//V.8 - tuning thermometer and hygrometer
//v.9   - DST corrected / compiler error corrected (long)round
//v.10 - Date change at   00:00 corrected for GMT>0
//v.11 - automitc panel brightness  (+3.3V ---|==10k==|---A0---|GND   
// review: anthias64@gmail.com
// kudos original maker code can't find its   name...

#include "Arduino.h"
#include <ArduinoJson.h>
#include <ESP8266WiFi.h>   //ESP8266 Core WiFi Library (you most likely already have this in your sketch)

WiFiClient   client;

#define NUM_MAX 6

// for NodeMCU 1.0
#define DIN_PIN 13   // D7
#define CS_PIN  0  // D3
#define CLK_PIN 14  // D5

#include   "max7219.h"
#include "fonts.h"

#include "DHT.h" // sensor DHT

//   DHT sensor
#define DHTPIN 12     // what pin we're connected to // GPIO 12 =   D6
// Uncomment whatever type you're using!
//#define DHTTYPE DHT11   // DHT   11 
#define DHTTYPE DHT22   // DHT 22  (AM2302)
//#define DHTTYPE DHT21   //   DHT 21 (AM2301)

DHT dht(DHTPIN, DHTTYPE, 11); // for ESP8266

//DHT
float   temperature = 0;
int temp = 0;
byte minus = 0;
int umidity = 0;
int   poz, poz2;
int mult = 0;

float temp_offset = -1.0; // taratura termometro
float   rh_offset = +3; // taratura igrometro

char TempLabel[] = "    Temperatura:   "; // Fixxed text
char UmiLabel[] = "    Umidita':  "; // Fixxed text

//modifica   test ip

const char ssid[] = "xxxxxxxxx";                     //  your network   SSID (name) <--------------
const char password[] = "xxxxxxxxxxxxxxxxxx";       //   your network password      <--------------

// Localized Months and DoWeek

String   M_arr[13] = {" ", "Gennaio", "Febbraio", "Marzo", "Aprile", "Maggio",   "Giugno", "Luglio", "Agosto", "Settembre", "Ottobre", "Novembre", "Dicembre"};
String   Dow_arr[8] = {" ", "Lunedi", "Martedi", "Mercoledi", "Giovedi", "Venerdi",   "Sabato", "Domenica"};

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

   initMAX7219(); //
  sendCmdAll(CMD_SHUTDOWN,1); //
  sendCmdAll(CMD_INTENSITY,1);   // brightness from 1 to 5
   
  Serial.print("Connecting to ");
  Serial.println(ssid);
   
  WiFi.begin(ssid, password);

  printStringWithShift("Connecting",30);   //
  delay (1000);
  
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
     Serial.print(".");
  }

  
  Serial.print("IP number assigned   by DHCP is ");
  Serial.println(WiFi.localIP());

  printStringWithShift((String("   IP:")+WiFi.localIP().toString()).c_str(), 30);//
  delay(1000);//

   // DHT
  

dht.begin();
temperature = dht.readTemperature() + temp_offset;
umidity   = dht.readHumidity() + rh_offset;

Serial.print(temperature);
Serial.println("   gr.Celsius");

Serial.print(umidity);
Serial.println(" %RH");

   if (temperature < 0)
   {
    temp = -10*temperature;
    minus = 1;
    }
   else
   {
    minus = 0;
    temp = 10*temperature;
   }
     
}


// =============================DEFINE VARS==============================
#define   MAX_DIGITS 20
byte dig[MAX_DIGITS]={0};
byte digold[MAX_DIGITS]={0};
byte   digtrans[MAX_DIGITS]={0};
int updCnt = 0;
int dots = 0;
long dotTime =   0;
long clkTime = 0;
int dx=0;
int dy=0;
byte del=0;
int h,m,s;
float   utcOffset = +1; // ==> your timezone
long localEpoc = 0;
long localMillisAtUpdate   = 0;
int day, month, year, dayOfWeek;
int monthnum = 0;
int downum = 0;
int   summerTime = 0;
String date; 
String dayloc; 
String monthloc; 


//   =======================================================================

void   loop()
{
  if(updCnt<=0) { // every 10 scrolls, ~450s=7.5m
    updCnt =   60;
    Serial.println("Getting data ...");
    // clr();
    printStringWithShift("    Get Time...",30);
    getTime();
    Serial.println("Data loaded");
     clkTime = millis();
    
  }

  contrast(); // //autobrightness

//print   data
 
  if(millis()-clkTime > 30000 && !del && dots) { // clock for 30s,   then scrolls for about 30s
   printStringWithShift("            ",40);       //Space   before
   printStringWithShift(date.c_str(),40);         //data1

// Reading   temperature or humidity 
    int umidity = dht.readHumidity()+ rh_offset;
     float temperature = dht.readTemperature()+ temp_offset; 
    
    //umidity   = umidity + rh_offset;
    //temperature = temperature + temp_offset;
    
     Serial.println("Temp e Umid corretti");
    Serial.println(temperature);
     Serial.println(umidity);
    
    int t2 = 10*temperature; 

//   print temperature

// http://www.arduino-hacks.com/converting-integer-to-character-vice-versa/
char   c[3], d[2]; 
String str1, str2;
int t2z = t2/10;
int t2u = t2 - t2z*10;
str1=String(t2z);
str1.toCharArray(c,3);
str2=String(t2u);
str2.toCharArray(d,2);
printStringWithShift(TempLabel   ,40);  // Send scrolling Text
printStringWithShift("+" ,40);
printStringWithShift(c   ,40);
printStringWithShift("," ,40);
printStringWithShift(d ,40);
printStringWithShift("   C^" ,40);
//delay(2000);

// print umidity

// http://www.arduino-hacks.com/converting-integer-to-character-vice-versa/
char   b[3];
String str;
str=String(umidity);
str.toCharArray(b,3);
printStringWithShift(UmiLabel   ,40);  // Send scrolling Text
printStringWithShift(b ,40);
printStringWithShift("   %" ,40);
//delay(2000);
 
   printStringWithShift("                 ",40);   //Space after
   delay(200);                          
      
    updCnt--;
     clkTime = millis();
  }
  if(millis()-dotTime > 500) {
    dotTime   = millis();
    dots = !dots;
  }
  updateTime(); // get time

//   print clock
  showAnimClock();
  //showSimpleClock();
  
}

//   =======================================================================

void   showSimpleClock()
{
  dx=dy=0;
  clr();
  showDigit(h/10,  0, dig6x8);
   showDigit(h%10,  8, dig6x8);
  showDigit(m/10, 17, dig6x8);
  showDigit(m%10,   25, dig6x8);
  showDigit(s/10, 34, dig6x8);
  showDigit(s%10, 42, dig6x8);
   setCol(15,dots ? B00100100 : 0);
  setCol(32,dots ? B00100100 : 0);
  refreshAll();
}

//   =======================================================================

void   showAnimClock()
{
  byte digPos[6]={0,8,17,25,34,42};
  int digHt = 12;
   int num = 6; 
  int i;
  if(del==0) {
    del = digHt;
    for(i=0;   i<num; i++) digold[i] = dig[i];
    dig[0] = h/10 ? h/10 : 10;
    dig[1]   = h%10;
    dig[2] = m/10;
    dig[3] = m%10;
    dig[4] = s/10;
    dig[5]   = s%10;
    for(i=0; i<num; i++)  digtrans[i] = (dig[i]==digold[i]) ? 0 : digHt;
   } else
    del--;
  
  clr();
  for(i=0; i<num; i++) {
    if(digtrans[i]==0)   {
      dy=0;
      showDigit(dig[i], digPos[i], dig6x8);
    } else {
       dy = digHt-digtrans[i];
      showDigit(digold[i], digPos[i], dig6x8);
       dy = -digtrans[i];
      showDigit(dig[i], digPos[i], dig6x8);
      digtrans[i]--;
     }
  }
  dy=0;
  setCol(15,dots ? B00100100 : 0);
  setCol(32,dots   ? B00100100 : 0);
  refreshAll();
  delay(10); //default 30
}

//   =======================================================================

void   showDigit(char ch, int col, const uint8_t *data)
{
  if(dy<-8 | dy>8) return;
   int len = pgm_read_byte(data);
  int w = pgm_read_byte(data + 1 + ch * len);
   col += dx;
  for (int i = 0; i < w; i++)
    if(col+i>=0 && col+i<8*NUM_MAX)   {
      byte v = pgm_read_byte(data + 1 + ch * len + 1 + i);
      if(!dy)   scr[col + i] = v; else scr[col + i] |= dy>0 ? v>>dy : v<<-dy;
    }
}

//   =======================================================================

void   setCol(int col, byte v)
{
  if(dy<-8 | dy>8) return;
  col += dx;
  if(col>=0   && col<8*NUM_MAX)
    if(!dy) scr[col] = v; else scr[col] |= dy>0 ? v>>dy : v<<-dy;
}

//   =======================================================================

int   showChar(char ch, const uint8_t *data)
{
  int len = pgm_read_byte(data);
   int i,w = pgm_read_byte(data + 1 + ch * len);
  for (i = 0; i < w; i++)
     scr[NUM_MAX*8 + i] = pgm_read_byte(data + 1 + ch * len + 1 + i);
  scr[NUM_MAX*8   + i] = 0;
  return w;
}

// =======================================================================


int   dualChar = 0;

unsigned char convertPolish(unsigned char _c)
{
  unsigned   char c = _c;
  if(c==196 || c==197 || c==195) {
    dualChar = c;
    return   0;
  }
  if(dualChar) {
    switch(_c) {
      case 133: c = 1+'~';   break; // ''
      case 135: c = 2+'~'; break; // ''
      case 153: c = 3+'~';   break; // ''
      case 130: c = 4+'~'; break; // ''
      case 132: c = dualChar==197   ? 5+'~' : 10+'~'; break; // '' and ''
      case 179: c = 6+'~'; break; // ''
       case 155: c = 7+'~'; break; // ''
      case 186: c = 8+'~'; break; //   ''
      case 188: c = 9+'~'; break; // ''
      //case 132: c = 10+'~'; break;   // ''
      case 134: c = 11+'~'; break; // ''
      case 152: c = 12+'~';   break; // ''
      case 129: c = 13+'~'; break; // ''
      case 131: c =   14+'~'; break; // ''
      case 147: c = 15+'~'; break; // ''
      case 154:   c = 16+'~'; break; // ''
      case 185: c = 17+'~'; break; // ''
      case   187: c = 18+'~'; break; // ''
      default:  break;
    }
    dualChar   = 0;
    return c;
  }    
  switch(_c) {
    case 185: c = 1+'~'; break;
     case 230: c = 2+'~'; break;
    case 234: c = 3+'~'; break;
    case 179:   c = 4+'~'; break;
    case 241: c = 5+'~'; break;
    case 243: c = 6+'~';   break;
    case 156: c = 7+'~'; break;
    case 159: c = 8+'~'; break;
     case 191: c = 9+'~'; break;
    case 165: c = 10+'~'; break;
    case   198: c = 11+'~'; break;
    case 202: c = 12+'~'; break;
    case 163: c =   13+'~'; break;
    case 209: c = 14+'~'; break;
    case 211: c = 15+'~';   break;
    case 140: c = 16+'~'; break;
    case 143: c = 17+'~'; break;
     case 175: c = 18+'~'; break;
    default:  break;
  }
  return c;
}


//   =======================================================================

void   printCharWithShift(unsigned char c, int shiftDelay) {
  c = convertPolish(c);
   if (c < ' ' || c > '~'+25) return;
  c -= 32;
  int w = showChar(c, font);
   for (int i=0; i<w+1; i++) {
    delay(shiftDelay);
    scrollLeft();
     refreshAll();
  }
}

// =======================================================================

void   printStringWithShift(const char* s, int shiftDelay){
  while (*s) {
    printCharWithShift(*s,   shiftDelay);
    s++;
  }
}
// =======================================================================

void   getTime()
{
  WiFiClient client;
  if (!client.connect("www.google.com",   80)) {
    Serial.println("connection to google failed");
    return;
   }

  client.print(String("GET / HTTP/1.1\
\
") +
               String("Host:   www.google.com\
\
") +
               String("Connection: close\
\
\
\
"));
   int repeatCounter = 0;
  while (!client.available() && repeatCounter < 10)   {
    delay(500);
    //Serial.println(".");
    repeatCounter++;
   }

  String line;
  client.setNoDelay(false);
  while(client.connected()   && client.available()) {
    line = client.readStringUntil('\
');
    line.toUpperCase();
     // Serial.println(line); //test stringa
    if (line.startsWith("DATE: "))   {
      //date = "     "+line.substring(6, 22);
      date =line.substring(6,   22);
      date.toUpperCase();

      Serial.println(date); //check
           
      int day = atoi (date.substring(5,7).c_str()); //day number       
       int year = 2000 + atoi (date.substring(13,16).c_str()); //year number
   
      monthnum = month2index(date.substring(8,11)); // convert month in mumber
       month = monthnum; //check
      downum = dow2index(date.substring(0,3));   // convert dow in mumber
      dayOfWeek = downum; //check

      monthloc   = M_arr[month]; // localize month
      dayloc = Dow_arr[dayOfWeek]; // localize   DayOfWeek

      date = dayloc + " " + day + " " + monthloc + " " +   year;


      
 //   decodeDate(date); //data3
      h = line.substring(23,   25).toInt();
      m = line.substring(26, 28).toInt();
      s = line.substring(29,   31).toInt()+1.5; //correzione ora
  
      // summerTime = checkSummerTime();

//   calcolo ora legale

      Serial.print("Ora GMT: " );
      Serial.print(h);   //check
      Serial.print(" : " );
      Serial.print(m); //check
      Serial.print("   : " );
      Serial.print(s); //check
      Serial.println(""); //check
       Serial.print("Data: " );
      Serial.println(date); //check

   //day = 31;
 //year = 2021;
 //month = 10;

      if(month>3 && month<=10)   summerTime=1;
      if(month==3 && day>=31-(((5*year/4)+4)%7) ) summerTime=1;         
      if(month==10 && day>=31-(((5*year/4)+1)%7) ) summerTime=0;
       
     
      Serial.print("Summertime: ");
      Serial.println(summerTime);
       

    unsigned short MoZiff[12] = { 0, 3, 3, 6, 1, 4, 6, 2, 5, 0, 3,   5 }; //Monatsziffer
    unsigned short Tage_Monat[12] = { 31, 28, 31, 30, 31,   30, 31, 31, 30, 31, 30, 31 };
        if(h+utcOffset+summerTime>23) {
   //        if(++day>31) { day=1; month++; };  // needs better patch
   //       if(++dayOfWeek>7)   dayOfWeek=1; 
       h = h - 24;
       dayOfWeek = dayOfWeek +1;
       if(dayOfWeek>7)   dayOfWeek=1;
        day = day + 1;
        if (day > Tage_Monat[month - 1])   {
            day = 1;
            month = month + 1;
            if (month   > 12) {
                month = 1;
                year = year + 1;
            }
         }    
        }

      monthloc = M_arr[month]; // localize month
       dayloc = Dow_arr[dayOfWeek]; // localize DayOfWeek

      date = dayloc   + ",   " + day + " " + monthloc + " " + year;
     
      localMillisAtUpdate   = millis();
      localEpoc = (h * 60 * 60 + m * 60 + s);
    }
  }
   client.stop();
}

// =======================================================================

//convert   month string in month number 

int month2index (String month) 
{
        String   months[12] = {"JAN", "FEB", "MAR", "APR", "MAY", "JUN", "JUL", "AUG",   "SEP", "OCT", "NOV", "DEC"};
        for (int i = 0; i < 12; i++) {
                 if (months[i] == month)
                        return i + 1;   
                        
        }
        return 0;
}

//   =======================================================================

//convert   dow string in dow number 

int dow2index (String dayOfWeek) 
{
        String   dows[7] = {"MON", "TUE", "WED", "THU", "FRI", "SAT", "SUN"};
        for   (int i = 0; i < 12; i++) {
                if (dows[i] == dayOfWeek)
                        return   i + 1;  
                        
        }
        return 0;
}

//   =======================================================================

//check   if it is summer time

// int checkSummerTime()
 
//{

  //if(month>3   && month<10) return 1;
  //if(month==3 && day>=31-(((5*year/4)+4)%7) ) return   1;
  //if(month==10 && day<31-(((5*year/4)+1)%7) ) return 0;
  //return 0;

   // return 1;
 
//}



// =======================================================================



void   updateTime()
{
  long curEpoch = localEpoc + ((millis() - localMillisAtUpdate)   / 1000);
 //long epoch = round(curEpoch + 3600 * (utcOffset+summerTime) + 86400L)   % 86400L;
  long epoch = (long)round(curEpoch + 3600 * (utcOffset+summerTime)   + 86400L) % 86400L; // fix compiler error
   //long epoch = round(curEpoch +   3600 * (utcOffset+summerTime) + 86400L);
  h = ((epoch  % 86400L) / 3600) % 24;
   m = (epoch % 3600) / 60;
  s = epoch % 60;
 
     
}

// =======================================================================

void   contrast()
{
  int lumina = analogRead(A0);         //autobrightness (+3.3V   ---|==10k==|---A0---|GND (niq_ro)
    lumina = map(lumina, 0, 1023, 0, 4); //broghtness   0-4
    //Serial.print("brightness = ");
    //Serial.print(lumina);
     //Serial.println (" / 4");
    sendCmdAll(CMD_INTENSITY, lumina);
}

WiFi NodeMCU ESP8266 Google Clock - v.11 Oct2020

arduino

1
2//V.3 - Data converted and daylight savings time
3//V.4 - localized  data, days... (use yours....)
4//V.6 - thermometer and hygrometer
5//V.7 - animated  clock corrected + seconds +1,5
6//V.8 - tuning thermometer and hygrometer
7//v.9  - DST corrected / compiler error corrected (long)round
8//v.10 - Date change at  00:00 corrected for GMT>0
9//v.11 - automitc panel brightness  (+3.3V ---|==10k==|---A0---|GND  
10// review: anthias64@gmail.com
11// kudos original maker code can't find its  name...
12
13#include "Arduino.h"
14#include <ArduinoJson.h>
15#include <ESP8266WiFi.h>  //ESP8266 Core WiFi Library (you most likely already have this in your sketch)
16
17WiFiClient  client;
18
19#define NUM_MAX 6
20
21// for NodeMCU 1.0
22#define DIN_PIN 13  // D7
23#define CS_PIN  0  // D3
24#define CLK_PIN 14  // D5
25
26#include  "max7219.h"
27#include "fonts.h"
28
29#include "DHT.h" // sensor DHT
30
31//  DHT sensor
32#define DHTPIN 12     // what pin we're connected to // GPIO 12 =  D6
33// Uncomment whatever type you're using!
34//#define DHTTYPE DHT11   // DHT  11 
35#define DHTTYPE DHT22   // DHT 22  (AM2302)
36//#define DHTTYPE DHT21   //  DHT 21 (AM2301)
37
38DHT dht(DHTPIN, DHTTYPE, 11); // for ESP8266
39
40//DHT
41float  temperature = 0;
42int temp = 0;
43byte minus = 0;
44int umidity = 0;
45int  poz, poz2;
46int mult = 0;
47
48float temp_offset = -1.0; // taratura termometro
49float  rh_offset = +3; // taratura igrometro
50
51char TempLabel[] = "    Temperatura:  "; // Fixxed text
52char UmiLabel[] = "    Umidita':  "; // Fixxed text
53
54//modifica  test ip
55
56const char ssid[] = "xxxxxxxxx";                     //  your network  SSID (name) <--------------
57const char password[] = "xxxxxxxxxxxxxxxxxx";       //  your network password      <--------------
58
59// Localized Months and DoWeek
60
61String  M_arr[13] = {" ", "Gennaio", "Febbraio", "Marzo", "Aprile", "Maggio",  "Giugno", "Luglio", "Agosto", "Settembre", "Ottobre", "Novembre", "Dicembre"};
62String  Dow_arr[8] = {" ", "Lunedi", "Martedi", "Mercoledi", "Giovedi", "Venerdi",  "Sabato", "Domenica"};
63
64void setup() 
65{
66  Serial.begin(115200);
67
68  initMAX7219(); //
69  sendCmdAll(CMD_SHUTDOWN,1); //
70  sendCmdAll(CMD_INTENSITY,1);  // brightness from 1 to 5
71   
72  Serial.print("Connecting to ");
73  Serial.println(ssid);
74  
75  WiFi.begin(ssid, password);
76
77  printStringWithShift("Connecting",30);  //
78  delay (1000);
79  
80  while (WiFi.status() != WL_CONNECTED) {
81    delay(500);
82    Serial.print(".");
83  }
84
85  
86  Serial.print("IP number assigned  by DHCP is ");
87  Serial.println(WiFi.localIP());
88
89  printStringWithShift((String("  IP:")+WiFi.localIP().toString()).c_str(), 30);//
90  delay(1000);//
91
92  // DHT
93  
94
95dht.begin();
96temperature = dht.readTemperature() + temp_offset;
97umidity  = dht.readHumidity() + rh_offset;
98
99Serial.print(temperature);
100Serial.println("  gr.Celsius");
101
102Serial.print(umidity);
103Serial.println(" %RH");
104
105  if (temperature < 0)
106   {
107    temp = -10*temperature;
108    minus = 1;
109   }
110   else
111   {
112    minus = 0;
113    temp = 10*temperature;
114   }
115    
116}
117
118
119// =============================DEFINE VARS==============================
120#define  MAX_DIGITS 20
121byte dig[MAX_DIGITS]={0};
122byte digold[MAX_DIGITS]={0};
123byte  digtrans[MAX_DIGITS]={0};
124int updCnt = 0;
125int dots = 0;
126long dotTime =  0;
127long clkTime = 0;
128int dx=0;
129int dy=0;
130byte del=0;
131int h,m,s;
132float  utcOffset = +1; // ==> your timezone
133long localEpoc = 0;
134long localMillisAtUpdate  = 0;
135int day, month, year, dayOfWeek;
136int monthnum = 0;
137int downum = 0;
138int  summerTime = 0;
139String date; 
140String dayloc; 
141String monthloc; 
142
143
144//  =======================================================================
145
146void  loop()
147{
148  if(updCnt<=0) { // every 10 scrolls, ~450s=7.5m
149    updCnt =  60;
150    Serial.println("Getting data ...");
151    // clr();
152    printStringWithShift("   Get Time...",30);
153    getTime();
154    Serial.println("Data loaded");
155    clkTime = millis();
156    
157  }
158
159  contrast(); // //autobrightness
160
161//print  data
162 
163  if(millis()-clkTime > 30000 && !del && dots) { // clock for 30s,  then scrolls for about 30s
164   printStringWithShift("            ",40);       //Space  before
165   printStringWithShift(date.c_str(),40);         //data1
166
167// Reading  temperature or humidity 
168    int umidity = dht.readHumidity()+ rh_offset;
169    float temperature = dht.readTemperature()+ temp_offset; 
170    
171    //umidity  = umidity + rh_offset;
172    //temperature = temperature + temp_offset;
173    
174    Serial.println("Temp e Umid corretti");
175    Serial.println(temperature);
176    Serial.println(umidity);
177    
178    int t2 = 10*temperature; 
179
180//  print temperature
181
182// http://www.arduino-hacks.com/converting-integer-to-character-vice-versa/
183char  c[3], d[2]; 
184String str1, str2;
185int t2z = t2/10;
186int t2u = t2 - t2z*10;
187str1=String(t2z);
188str1.toCharArray(c,3);
189str2=String(t2u);
190str2.toCharArray(d,2);
191printStringWithShift(TempLabel  ,40);  // Send scrolling Text
192printStringWithShift("+" ,40);
193printStringWithShift(c  ,40);
194printStringWithShift("," ,40);
195printStringWithShift(d ,40);
196printStringWithShift("  C^" ,40);
197//delay(2000);
198
199// print umidity
200
201// http://www.arduino-hacks.com/converting-integer-to-character-vice-versa/
202char  b[3];
203String str;
204str=String(umidity);
205str.toCharArray(b,3);
206printStringWithShift(UmiLabel  ,40);  // Send scrolling Text
207printStringWithShift(b ,40);
208printStringWithShift("  %" ,40);
209//delay(2000);
210 
211   printStringWithShift("                 ",40);  //Space after
212   delay(200);                          
213      
214    updCnt--;
215    clkTime = millis();
216  }
217  if(millis()-dotTime > 500) {
218    dotTime  = millis();
219    dots = !dots;
220  }
221  updateTime(); // get time
222
223//  print clock
224  showAnimClock();
225  //showSimpleClock();
226  
227}
228
229//  =======================================================================
230
231void  showSimpleClock()
232{
233  dx=dy=0;
234  clr();
235  showDigit(h/10,  0, dig6x8);
236  showDigit(h%10,  8, dig6x8);
237  showDigit(m/10, 17, dig6x8);
238  showDigit(m%10,  25, dig6x8);
239  showDigit(s/10, 34, dig6x8);
240  showDigit(s%10, 42, dig6x8);
241  setCol(15,dots ? B00100100 : 0);
242  setCol(32,dots ? B00100100 : 0);
243  refreshAll();
244}
245
246//  =======================================================================
247
248void  showAnimClock()
249{
250  byte digPos[6]={0,8,17,25,34,42};
251  int digHt = 12;
252  int num = 6; 
253  int i;
254  if(del==0) {
255    del = digHt;
256    for(i=0;  i<num; i++) digold[i] = dig[i];
257    dig[0] = h/10 ? h/10 : 10;
258    dig[1]  = h%10;
259    dig[2] = m/10;
260    dig[3] = m%10;
261    dig[4] = s/10;
262    dig[5]  = s%10;
263    for(i=0; i<num; i++)  digtrans[i] = (dig[i]==digold[i]) ? 0 : digHt;
264  } else
265    del--;
266  
267  clr();
268  for(i=0; i<num; i++) {
269    if(digtrans[i]==0)  {
270      dy=0;
271      showDigit(dig[i], digPos[i], dig6x8);
272    } else {
273      dy = digHt-digtrans[i];
274      showDigit(digold[i], digPos[i], dig6x8);
275      dy = -digtrans[i];
276      showDigit(dig[i], digPos[i], dig6x8);
277      digtrans[i]--;
278    }
279  }
280  dy=0;
281  setCol(15,dots ? B00100100 : 0);
282  setCol(32,dots  ? B00100100 : 0);
283  refreshAll();
284  delay(10); //default 30
285}
286
287//  =======================================================================
288
289void  showDigit(char ch, int col, const uint8_t *data)
290{
291  if(dy<-8 | dy>8) return;
292  int len = pgm_read_byte(data);
293  int w = pgm_read_byte(data + 1 + ch * len);
294  col += dx;
295  for (int i = 0; i < w; i++)
296    if(col+i>=0 && col+i<8*NUM_MAX)  {
297      byte v = pgm_read_byte(data + 1 + ch * len + 1 + i);
298      if(!dy)  scr[col + i] = v; else scr[col + i] |= dy>0 ? v>>dy : v<<-dy;
299    }
300}
301
302//  =======================================================================
303
304void  setCol(int col, byte v)
305{
306  if(dy<-8 | dy>8) return;
307  col += dx;
308  if(col>=0  && col<8*NUM_MAX)
309    if(!dy) scr[col] = v; else scr[col] |= dy>0 ? v>>dy : v<<-dy;
310}
311
312//  =======================================================================
313
314int  showChar(char ch, const uint8_t *data)
315{
316  int len = pgm_read_byte(data);
317  int i,w = pgm_read_byte(data + 1 + ch * len);
318  for (i = 0; i < w; i++)
319    scr[NUM_MAX*8 + i] = pgm_read_byte(data + 1 + ch * len + 1 + i);
320  scr[NUM_MAX*8  + i] = 0;
321  return w;
322}
323
324// =======================================================================
325
326
327int  dualChar = 0;
328
329unsigned char convertPolish(unsigned char _c)
330{
331  unsigned  char c = _c;
332  if(c==196 || c==197 || c==195) {
333    dualChar = c;
334    return  0;
335  }
336  if(dualChar) {
337    switch(_c) {
338      case 133: c = 1+'~';  break; // ''
339      case 135: c = 2+'~'; break; // ''
340      case 153: c = 3+'~';  break; // ''
341      case 130: c = 4+'~'; break; // ''
342      case 132: c = dualChar==197  ? 5+'~' : 10+'~'; break; // '' and ''
343      case 179: c = 6+'~'; break; // ''
344      case 155: c = 7+'~'; break; // ''
345      case 186: c = 8+'~'; break; //  ''
346      case 188: c = 9+'~'; break; // ''
347      //case 132: c = 10+'~'; break;  // ''
348      case 134: c = 11+'~'; break; // ''
349      case 152: c = 12+'~';  break; // ''
350      case 129: c = 13+'~'; break; // ''
351      case 131: c =  14+'~'; break; // ''
352      case 147: c = 15+'~'; break; // ''
353      case 154:  c = 16+'~'; break; // ''
354      case 185: c = 17+'~'; break; // ''
355      case  187: c = 18+'~'; break; // ''
356      default:  break;
357    }
358    dualChar  = 0;
359    return c;
360  }    
361  switch(_c) {
362    case 185: c = 1+'~'; break;
363    case 230: c = 2+'~'; break;
364    case 234: c = 3+'~'; break;
365    case 179:  c = 4+'~'; break;
366    case 241: c = 5+'~'; break;
367    case 243: c = 6+'~';  break;
368    case 156: c = 7+'~'; break;
369    case 159: c = 8+'~'; break;
370    case 191: c = 9+'~'; break;
371    case 165: c = 10+'~'; break;
372    case  198: c = 11+'~'; break;
373    case 202: c = 12+'~'; break;
374    case 163: c =  13+'~'; break;
375    case 209: c = 14+'~'; break;
376    case 211: c = 15+'~';  break;
377    case 140: c = 16+'~'; break;
378    case 143: c = 17+'~'; break;
379    case 175: c = 18+'~'; break;
380    default:  break;
381  }
382  return c;
383}
384
385
386//  =======================================================================
387
388void  printCharWithShift(unsigned char c, int shiftDelay) {
389  c = convertPolish(c);
390  if (c < ' ' || c > '~'+25) return;
391  c -= 32;
392  int w = showChar(c, font);
393  for (int i=0; i<w+1; i++) {
394    delay(shiftDelay);
395    scrollLeft();
396    refreshAll();
397  }
398}
399
400// =======================================================================
401
402void  printStringWithShift(const char* s, int shiftDelay){
403  while (*s) {
404    printCharWithShift(*s,  shiftDelay);
405    s++;
406  }
407}
408// =======================================================================
409
410void  getTime()
411{
412  WiFiClient client;
413  if (!client.connect("www.google.com",  80)) {
414    Serial.println("connection to google failed");
415    return;
416  }
417
418  client.print(String("GET / HTTP/1.1\
\
419") +
420               String("Host:  www.google.com\
\
421") +
422               String("Connection: close\
\
423\
\
424"));
425  int repeatCounter = 0;
426  while (!client.available() && repeatCounter < 10)  {
427    delay(500);
428    //Serial.println(".");
429    repeatCounter++;
430  }
431
432  String line;
433  client.setNoDelay(false);
434  while(client.connected()  && client.available()) {
435    line = client.readStringUntil('\n');
436    line.toUpperCase();
437    // Serial.println(line); //test stringa
438    if (line.startsWith("DATE: "))  {
439      //date = "     "+line.substring(6, 22);
440      date =line.substring(6,  22);
441      date.toUpperCase();
442
443      Serial.println(date); //check
444          
445      int day = atoi (date.substring(5,7).c_str()); //day number       
446      int year = 2000 + atoi (date.substring(13,16).c_str()); //year number
447  
448      monthnum = month2index(date.substring(8,11)); // convert month in mumber
449      month = monthnum; //check
450      downum = dow2index(date.substring(0,3));  // convert dow in mumber
451      dayOfWeek = downum; //check
452
453      monthloc  = M_arr[month]; // localize month
454      dayloc = Dow_arr[dayOfWeek]; // localize  DayOfWeek
455
456      date = dayloc + " " + day + " " + monthloc + " " +  year;
457
458
459      
460 //   decodeDate(date); //data3
461      h = line.substring(23,  25).toInt();
462      m = line.substring(26, 28).toInt();
463      s = line.substring(29,  31).toInt()+1.5; //correzione ora
464  
465      // summerTime = checkSummerTime();
466
467//  calcolo ora legale
468
469      Serial.print("Ora GMT: " );
470      Serial.print(h);  //check
471      Serial.print(" : " );
472      Serial.print(m); //check
473      Serial.print("  : " );
474      Serial.print(s); //check
475      Serial.println(""); //check
476      Serial.print("Data: " );
477      Serial.println(date); //check
478
479  //day = 31;
480 //year = 2021;
481 //month = 10;
482
483      if(month>3 && month<=10)  summerTime=1;
484      if(month==3 && day>=31-(((5*year/4)+4)%7) ) summerTime=1;        
485      if(month==10 && day>=31-(((5*year/4)+1)%7) ) summerTime=0;
486      
487     
488      Serial.print("Summertime: ");
489      Serial.println(summerTime);
490      
491
492    unsigned short MoZiff[12] = { 0, 3, 3, 6, 1, 4, 6, 2, 5, 0, 3,  5 }; //Monatsziffer
493    unsigned short Tage_Monat[12] = { 31, 28, 31, 30, 31,  30, 31, 31, 30, 31, 30, 31 };
494        if(h+utcOffset+summerTime>23) {
495   //       if(++day>31) { day=1; month++; };  // needs better patch
496   //       if(++dayOfWeek>7)  dayOfWeek=1; 
497       h = h - 24;
498       dayOfWeek = dayOfWeek +1;
499       if(dayOfWeek>7)  dayOfWeek=1;
500        day = day + 1;
501        if (day > Tage_Monat[month - 1])  {
502            day = 1;
503            month = month + 1;
504            if (month  > 12) {
505                month = 1;
506                year = year + 1;
507            }
508        }    
509        }
510
511      monthloc = M_arr[month]; // localize month
512      dayloc = Dow_arr[dayOfWeek]; // localize DayOfWeek
513
514      date = dayloc  + ",   " + day + " " + monthloc + " " + year;
515     
516      localMillisAtUpdate  = millis();
517      localEpoc = (h * 60 * 60 + m * 60 + s);
518    }
519  }
520  client.stop();
521}
522
523// =======================================================================
524
525//convert  month string in month number 
526
527int month2index (String month) 
528{
529        String  months[12] = {"JAN", "FEB", "MAR", "APR", "MAY", "JUN", "JUL", "AUG",  "SEP", "OCT", "NOV", "DEC"};
530        for (int i = 0; i < 12; i++) {
531                if (months[i] == month)
532                        return i + 1;  
533                        
534        }
535        return 0;
536}
537
538//  =======================================================================
539
540//convert  dow string in dow number 
541
542int dow2index (String dayOfWeek) 
543{
544        String  dows[7] = {"MON", "TUE", "WED", "THU", "FRI", "SAT", "SUN"};
545        for  (int i = 0; i < 12; i++) {
546                if (dows[i] == dayOfWeek)
547                        return  i + 1;  
548                        
549        }
550        return 0;
551}
552
553//  =======================================================================
554
555//check  if it is summer time
556
557// int checkSummerTime()
558 
559//{
560
561  //if(month>3  && month<10) return 1;
562  //if(month==3 && day>=31-(((5*year/4)+4)%7) ) return  1;
563  //if(month==10 && day<31-(((5*year/4)+1)%7) ) return 0;
564  //return 0;
565
566  // return 1;
567 
568//}
569
570
571
572// =======================================================================
573
574
575
576void  updateTime()
577{
578  long curEpoch = localEpoc + ((millis() - localMillisAtUpdate)  / 1000);
579 //long epoch = round(curEpoch + 3600 * (utcOffset+summerTime) + 86400L)  % 86400L;
580  long epoch = (long)round(curEpoch + 3600 * (utcOffset+summerTime)  + 86400L) % 86400L; // fix compiler error
581   //long epoch = round(curEpoch +  3600 * (utcOffset+summerTime) + 86400L);
582  h = ((epoch  % 86400L) / 3600) % 24;
583  m = (epoch % 3600) / 60;
584  s = epoch % 60;
585 
586     
587}
588
589// =======================================================================
590
591void  contrast()
592{
593  int lumina = analogRead(A0);         //autobrightness (+3.3V  ---|==10k==|---A0---|GND (niq_ro)
594    lumina = map(lumina, 0, 1023, 0, 4); //broghtness  0-4
595    //Serial.print("brightness = ");
596    //Serial.print(lumina);
597    //Serial.println (" / 4");
598    sendCmdAll(CMD_INTENSITY, lumina);
599}
600

//V.3 - Data converted and daylight savings time
//V.4 - localized  data, days... (use yours....)
//V.6 - thermometer and hygrometer
//V.7 - animated  clock corrected + seconds +1,5
//V.8 - tuning thermometer and hygrometer
//v.9  - DST corrected / compiler error corrected (long)round
//v.10 - Date change at  00:00 corrected for GMT>0
//v.11 - automitc panel brightness  (+3.3V ---|==10k==|---A0---|GND  
// review: anthias64@gmail.com
// kudos original maker code can't find its  name...

#include "Arduino.h"
#include <ArduinoJson.h>
#include <ESP8266WiFi.h>  //ESP8266 Core WiFi Library (you most likely already have this in your sketch)

WiFiClient  client;

#define NUM_MAX 6

// for NodeMCU 1.0
#define DIN_PIN 13  // D7
#define CS_PIN  0  // D3
#define CLK_PIN 14  // D5

#include  "max7219.h"
#include "fonts.h"

#include "DHT.h" // sensor DHT

//  DHT sensor
#define DHTPIN 12     // what pin we're connected to // GPIO 12 =  D6
// Uncomment whatever type you're using!
//#define DHTTYPE DHT11   // DHT  11 
#define DHTTYPE DHT22   // DHT 22  (AM2302)
//#define DHTTYPE DHT21   //  DHT 21 (AM2301)

DHT dht(DHTPIN, DHTTYPE, 11); // for ESP8266

//DHT
float  temperature = 0;
int temp = 0;
byte minus = 0;
int umidity = 0;
int  poz, poz2;
int mult = 0;

float temp_offset = -1.0; // taratura termometro
float  rh_offset = +3; // taratura igrometro

char TempLabel[] = "    Temperatura:  "; // Fixxed text
char UmiLabel[] = "    Umidita':  "; // Fixxed text

//modifica  test ip

const char ssid[] = "xxxxxxxxx";                     //  your network  SSID (name) <--------------
const char password[] = "xxxxxxxxxxxxxxxxxx";       //  your network password      <--------------

// Localized Months and DoWeek

String  M_arr[13] = {" ", "Gennaio", "Febbraio", "Marzo", "Aprile", "Maggio",  "Giugno", "Luglio", "Agosto", "Settembre", "Ottobre", "Novembre", "Dicembre"};
String  Dow_arr[8] = {" ", "Lunedi", "Martedi", "Mercoledi", "Giovedi", "Venerdi",  "Sabato", "Domenica"};

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

  initMAX7219(); //
  sendCmdAll(CMD_SHUTDOWN,1); //
  sendCmdAll(CMD_INTENSITY,1);  // brightness from 1 to 5
   
  Serial.print("Connecting to ");
  Serial.println(ssid);
  
  WiFi.begin(ssid, password);

  printStringWithShift("Connecting",30);  //
  delay (1000);
  
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }

  
  Serial.print("IP number assigned  by DHCP is ");
  Serial.println(WiFi.localIP());

  printStringWithShift((String("  IP:")+WiFi.localIP().toString()).c_str(), 30);//
  delay(1000);//

  // DHT
  

dht.begin();
temperature = dht.readTemperature() + temp_offset;
umidity  = dht.readHumidity() + rh_offset;

Serial.print(temperature);
Serial.println("  gr.Celsius");

Serial.print(umidity);
Serial.println(" %RH");

  if (temperature < 0)
   {
    temp = -10*temperature;
    minus = 1;
   }
   else
   {
    minus = 0;
    temp = 10*temperature;
   }
    
}


// =============================DEFINE VARS==============================
#define  MAX_DIGITS 20
byte dig[MAX_DIGITS]={0};
byte digold[MAX_DIGITS]={0};
byte  digtrans[MAX_DIGITS]={0};
int updCnt = 0;
int dots = 0;
long dotTime =  0;
long clkTime = 0;
int dx=0;
int dy=0;
byte del=0;
int h,m,s;
float  utcOffset = +1; // ==> your timezone
long localEpoc = 0;
long localMillisAtUpdate  = 0;
int day, month, year, dayOfWeek;
int monthnum = 0;
int downum = 0;
int  summerTime = 0;
String date; 
String dayloc; 
String monthloc; 


//  =======================================================================

void  loop()
{
  if(updCnt<=0) { // every 10 scrolls, ~450s=7.5m
    updCnt =  60;
    Serial.println("Getting data ...");
    // clr();
    printStringWithShift("   Get Time...",30);
    getTime();
    Serial.println("Data loaded");
    clkTime = millis();
    
  }

  contrast(); // //autobrightness

//print  data
 
  if(millis()-clkTime > 30000 && !del && dots) { // clock for 30s,  then scrolls for about 30s
   printStringWithShift("            ",40);       //Space  before
   printStringWithShift(date.c_str(),40);         //data1

// Reading  temperature or humidity 
    int umidity = dht.readHumidity()+ rh_offset;
    float temperature = dht.readTemperature()+ temp_offset; 
    
    //umidity  = umidity + rh_offset;
    //temperature = temperature + temp_offset;
    
    Serial.println("Temp e Umid corretti");
    Serial.println(temperature);
    Serial.println(umidity);
    
    int t2 = 10*temperature; 

//  print temperature

// http://www.arduino-hacks.com/converting-integer-to-character-vice-versa/
char  c[3], d[2]; 
String str1, str2;
int t2z = t2/10;
int t2u = t2 - t2z*10;
str1=String(t2z);
str1.toCharArray(c,3);
str2=String(t2u);
str2.toCharArray(d,2);
printStringWithShift(TempLabel  ,40);  // Send scrolling Text
printStringWithShift("+" ,40);
printStringWithShift(c  ,40);
printStringWithShift("," ,40);
printStringWithShift(d ,40);
printStringWithShift("  C^" ,40);
//delay(2000);

// print umidity

// http://www.arduino-hacks.com/converting-integer-to-character-vice-versa/
char  b[3];
String str;
str=String(umidity);
str.toCharArray(b,3);
printStringWithShift(UmiLabel  ,40);  // Send scrolling Text
printStringWithShift(b ,40);
printStringWithShift("  %" ,40);
//delay(2000);
 
   printStringWithShift("                 ",40);  //Space after
   delay(200);                          
      
    updCnt--;
    clkTime = millis();
  }
  if(millis()-dotTime > 500) {
    dotTime  = millis();
    dots = !dots;
  }
  updateTime(); // get time

//  print clock
  showAnimClock();
  //showSimpleClock();
  
}

//  =======================================================================

void  showSimpleClock()
{
  dx=dy=0;
  clr();
  showDigit(h/10,  0, dig6x8);
  showDigit(h%10,  8, dig6x8);
  showDigit(m/10, 17, dig6x8);
  showDigit(m%10,  25, dig6x8);
  showDigit(s/10, 34, dig6x8);
  showDigit(s%10, 42, dig6x8);
  setCol(15,dots ? B00100100 : 0);
  setCol(32,dots ? B00100100 : 0);
  refreshAll();
}

//  =======================================================================

void  showAnimClock()
{
  byte digPos[6]={0,8,17,25,34,42};
  int digHt = 12;
  int num = 6; 
  int i;
  if(del==0) {
    del = digHt;
    for(i=0;  i<num; i++) digold[i] = dig[i];
    dig[0] = h/10 ? h/10 : 10;
    dig[1]  = h%10;
    dig[2] = m/10;
    dig[3] = m%10;
    dig[4] = s/10;
    dig[5]  = s%10;
    for(i=0; i<num; i++)  digtrans[i] = (dig[i]==digold[i]) ? 0 : digHt;
  } else
    del--;
  
  clr();
  for(i=0; i<num; i++) {
    if(digtrans[i]==0)  {
      dy=0;
      showDigit(dig[i], digPos[i], dig6x8);
    } else {
      dy = digHt-digtrans[i];
      showDigit(digold[i], digPos[i], dig6x8);
      dy = -digtrans[i];
      showDigit(dig[i], digPos[i], dig6x8);
      digtrans[i]--;
    }
  }
  dy=0;
  setCol(15,dots ? B00100100 : 0);
  setCol(32,dots  ? B00100100 : 0);
  refreshAll();
  delay(10); //default 30
}

//  =======================================================================

void  showDigit(char ch, int col, const uint8_t *data)
{
  if(dy<-8 | dy>8) return;
  int len = pgm_read_byte(data);
  int w = pgm_read_byte(data + 1 + ch * len);
  col += dx;
  for (int i = 0; i < w; i++)
    if(col+i>=0 && col+i<8*NUM_MAX)  {
      byte v = pgm_read_byte(data + 1 + ch * len + 1 + i);
      if(!dy)  scr[col + i] = v; else scr[col + i] |= dy>0 ? v>>dy : v<<-dy;
    }
}

//  =======================================================================

void  setCol(int col, byte v)
{
  if(dy<-8 | dy>8) return;
  col += dx;
  if(col>=0  && col<8*NUM_MAX)
    if(!dy) scr[col] = v; else scr[col] |= dy>0 ? v>>dy : v<<-dy;
}

//  =======================================================================

int  showChar(char ch, const uint8_t *data)
{
  int len = pgm_read_byte(data);
  int i,w = pgm_read_byte(data + 1 + ch * len);
  for (i = 0; i < w; i++)
    scr[NUM_MAX*8 + i] = pgm_read_byte(data + 1 + ch * len + 1 + i);
  scr[NUM_MAX*8  + i] = 0;
  return w;
}

// =======================================================================


int  dualChar = 0;

unsigned char convertPolish(unsigned char _c)
{
  unsigned  char c = _c;
  if(c==196 || c==197 || c==195) {
    dualChar = c;
    return  0;
  }
  if(dualChar) {
    switch(_c) {
      case 133: c = 1+'~';  break; // ''
      case 135: c = 2+'~'; break; // ''
      case 153: c = 3+'~';  break; // ''
      case 130: c = 4+'~'; break; // ''
      case 132: c = dualChar==197  ? 5+'~' : 10+'~'; break; // '' and ''
      case 179: c = 6+'~'; break; // ''
      case 155: c = 7+'~'; break; // ''
      case 186: c = 8+'~'; break; //  ''
      case 188: c = 9+'~'; break; // ''
      //case 132: c = 10+'~'; break;  // ''
      case 134: c = 11+'~'; break; // ''
      case 152: c = 12+'~';  break; // ''
      case 129: c = 13+'~'; break; // ''
      case 131: c =  14+'~'; break; // ''
      case 147: c = 15+'~'; break; // ''
      case 154:  c = 16+'~'; break; // ''
      case 185: c = 17+'~'; break; // ''
      case  187: c = 18+'~'; break; // ''
      default:  break;
    }
    dualChar  = 0;
    return c;
  }    
  switch(_c) {
    case 185: c = 1+'~'; break;
    case 230: c = 2+'~'; break;
    case 234: c = 3+'~'; break;
    case 179:  c = 4+'~'; break;
    case 241: c = 5+'~'; break;
    case 243: c = 6+'~';  break;
    case 156: c = 7+'~'; break;
    case 159: c = 8+'~'; break;
    case 191: c = 9+'~'; break;
    case 165: c = 10+'~'; break;
    case  198: c = 11+'~'; break;
    case 202: c = 12+'~'; break;
    case 163: c =  13+'~'; break;
    case 209: c = 14+'~'; break;
    case 211: c = 15+'~';  break;
    case 140: c = 16+'~'; break;
    case 143: c = 17+'~'; break;
    case 175: c = 18+'~'; break;
    default:  break;
  }
  return c;
}


//  =======================================================================

void  printCharWithShift(unsigned char c, int shiftDelay) {
  c = convertPolish(c);
  if (c < ' ' || c > '~'+25) return;
  c -= 32;
  int w = showChar(c, font);
  for (int i=0; i<w+1; i++) {
    delay(shiftDelay);
    scrollLeft();
    refreshAll();
  }
}

// =======================================================================

void  printStringWithShift(const char* s, int shiftDelay){
  while (*s) {
    printCharWithShift(*s,  shiftDelay);
    s++;
  }
}
// =======================================================================

void  getTime()
{
  WiFiClient client;
  if (!client.connect("www.google.com",  80)) {
    Serial.println("connection to google failed");
    return;
  }

  client.print(String("GET / HTTP/1.1\
\
") +
               String("Host:  www.google.com\
\
") +
               String("Connection: close\
\
\
\
"));
  int repeatCounter = 0;
  while (!client.available() && repeatCounter < 10)  {
    delay(500);
    //Serial.println(".");
    repeatCounter++;
  }

  String line;
  client.setNoDelay(false);
  while(client.connected()  && client.available()) {
    line = client.readStringUntil('\n');
    line.toUpperCase();
    // Serial.println(line); //test stringa
    if (line.startsWith("DATE: "))  {
      //date = "     "+line.substring(6, 22);
      date =line.substring(6,  22);
      date.toUpperCase();

      Serial.println(date); //check
          
      int day = atoi (date.substring(5,7).c_str()); //day number       
      int year = 2000 + atoi (date.substring(13,16).c_str()); //year number
  
      monthnum = month2index(date.substring(8,11)); // convert month in mumber
      month = monthnum; //check
      downum = dow2index(date.substring(0,3));  // convert dow in mumber
      dayOfWeek = downum; //check

      monthloc  = M_arr[month]; // localize month
      dayloc = Dow_arr[dayOfWeek]; // localize  DayOfWeek

      date = dayloc + " " + day + " " + monthloc + " " +  year;


      
 //   decodeDate(date); //data3
      h = line.substring(23,  25).toInt();
      m = line.substring(26, 28).toInt();
      s = line.substring(29,  31).toInt()+1.5; //correzione ora
  
      // summerTime = checkSummerTime();

//  calcolo ora legale

      Serial.print("Ora GMT: " );
      Serial.print(h);  //check
      Serial.print(" : " );
      Serial.print(m); //check
      Serial.print("  : " );
      Serial.print(s); //check
      Serial.println(""); //check
      Serial.print("Data: " );
      Serial.println(date); //check

  //day = 31;
 //year = 2021;
 //month = 10;

      if(month>3 && month<=10)  summerTime=1;
      if(month==3 && day>=31-(((5*year/4)+4)%7) ) summerTime=1;        
      if(month==10 && day>=31-(((5*year/4)+1)%7) ) summerTime=0;
      
     
      Serial.print("Summertime: ");
      Serial.println(summerTime);
      

    unsigned short MoZiff[12] = { 0, 3, 3, 6, 1, 4, 6, 2, 5, 0, 3,  5 }; //Monatsziffer
    unsigned short Tage_Monat[12] = { 31, 28, 31, 30, 31,  30, 31, 31, 30, 31, 30, 31 };
        if(h+utcOffset+summerTime>23) {
   //       if(++day>31) { day=1; month++; };  // needs better patch
   //       if(++dayOfWeek>7)  dayOfWeek=1; 
       h = h - 24;
       dayOfWeek = dayOfWeek +1;
       if(dayOfWeek>7)  dayOfWeek=1;
        day = day + 1;
        if (day > Tage_Monat[month - 1])  {
            day = 1;
            month = month + 1;
            if (month  > 12) {
                month = 1;
                year = year + 1;
            }
        }    
        }

      monthloc = M_arr[month]; // localize month
      dayloc = Dow_arr[dayOfWeek]; // localize DayOfWeek

      date = dayloc  + ",   " + day + " " + monthloc + " " + year;
     
      localMillisAtUpdate  = millis();
      localEpoc = (h * 60 * 60 + m * 60 + s);
    }
  }
  client.stop();
}

// =======================================================================

//convert  month string in month number 

int month2index (String month) 
{
        String  months[12] = {"JAN", "FEB", "MAR", "APR", "MAY", "JUN", "JUL", "AUG",  "SEP", "OCT", "NOV", "DEC"};
        for (int i = 0; i < 12; i++) {
                if (months[i] == month)
                        return i + 1;  
                        
        }
        return 0;
}

//  =======================================================================

//convert  dow string in dow number 

int dow2index (String dayOfWeek) 
{
        String  dows[7] = {"MON", "TUE", "WED", "THU", "FRI", "SAT", "SUN"};
        for  (int i = 0; i < 12; i++) {
                if (dows[i] == dayOfWeek)
                        return  i + 1;  
                        
        }
        return 0;
}

//  =======================================================================

//check  if it is summer time

// int checkSummerTime()
 
//{

  //if(month>3  && month<10) return 1;
  //if(month==3 && day>=31-(((5*year/4)+4)%7) ) return  1;
  //if(month==10 && day<31-(((5*year/4)+1)%7) ) return 0;
  //return 0;

  // return 1;
 
//}



// =======================================================================



void  updateTime()
{
  long curEpoch = localEpoc + ((millis() - localMillisAtUpdate)  / 1000);
 //long epoch = round(curEpoch + 3600 * (utcOffset+summerTime) + 86400L)  % 86400L;
  long epoch = (long)round(curEpoch + 3600 * (utcOffset+summerTime)  + 86400L) % 86400L; // fix compiler error
   //long epoch = round(curEpoch +  3600 * (utcOffset+summerTime) + 86400L);
  h = ((epoch  % 86400L) / 3600) % 24;
  m = (epoch % 3600) / 60;
  s = epoch % 60;
 
     
}

// =======================================================================

void  contrast()
{
  int lumina = analogRead(A0);         //autobrightness (+3.3V  ---|==10k==|---A0---|GND (niq_ro)
    lumina = map(lumina, 0, 1023, 0, 4); //broghtness  0-4
    //Serial.print("brightness = ");
    //Serial.print(lumina);
    //Serial.println (" / 4");
    sendCmdAll(CMD_INTENSITY, lumina);
}

Downloadable files

WiFi NodeMCU ESP8266 Google Clock - v.11 Oct2020

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