Arduino OLED Word Clock

A word clock using an OLED display.

Oct 2, 2017

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clocks

Devices & Components

Arduino Nano

Real Time Clock (RTC)

Breadboard (generic)

geekcraft 091 128 X 32 oled display

Jumper wires (generic)

Software & Tools

Arduino IDE

Project description

Code

oled word clock

arduino

run RTCLib ds1307 to set time on rtc before using with display

1//OLED Word Clock
2
3
4#include <Wire.h>  
5#include"RTClib.h"
6#include  <SPI.h>
7#include <Adafruit_GFX.h>
8#include <Adafruit_SSD1306.h>
9#define  OLED_RESET 4
10Adafruit_SSD1306 display(OLED_RESET);
11#if (SSD1306_LCDHEIGHT  != 32)
12#error("Height incorrect, please fix Adafruit_SSD1306.h!");
13#endif
14//  Display output
15#define MINUTES
16#define MTEN 	
17#define HALF	
18#define  PAST	
19#define THREE	
20#define ITIS	
21#define TWENTY	
22#define TO	  
23#define TWO	   
24#define SIX	 
25#define TWELVE	
26#define HFIVE	
27#define  SEVEN	
28#define OCLOCK	
29#define ONE	   
30#define QUARTER	
31#define  EIGHT	
32#define MFIVE	
33#define ARDUINO	
34#define ELEVEN	
35#define HTEN	
36#define  NINE	
37#define FOUR
38#define RBK	    
39int hour=0, minute=0, second=0;
40static  unsigned long msTick =0;  // the number of Millisecond Ticks since we last 
41//  incremented the second counter
42int  selftestmode;          // 1 = in self test  - flash display
43 char Display1=0, Display2=0, Display3=0;
44                  
45//  RTC DEFINE-
46RTC_DS1307 RTC ;
47void setup()
48{
49  Serial.begin(9600);   //  setup the serial port to 9600 baud
50  Wire.begin();
51  RTC.begin();
52  display.begin(SSD1306_SWITCHCAPVCC,  0x3C);  // initialize with the I2C addr 0x3C (for the 128x32)
53  // init done
54  //Clear the buffer.
55  display.clearDisplay();
56  //draw scrolling text
57  testscrolltext();
58  delay(2);
59  display.clearDisplay();
60    if ( RTC.isrunning())  {
61      DateTime now = RTC.now();
62       display.clearDisplay();
63  }
64      
65  DateTime now = RTC.now();
66    msTick=millis();      // Initialise  the msTick counter
67  if ( RTC.isrunning() ) {
68    // Get the current time  and date from the RTC chip 
69    second=now.second();     
70    minute=now.minute();
71    hour=now.hour(); 
72 display.clearDisplay();
73  }
74  displaytime();        //  display the current time
75}
76 void testscrolltext(void) {
77  display.setTextSize(1);
78  display.setTextColor(WHITE);
79}
80void displaytime(void){
81  // start by  clearing the display to a known state
82display.clearDisplay();
83display.setCursor(30,0);
84  display.print("It is");
85 display.println(" ");
86display.display();
87  // now we display the appropriate minute counter
88  if ((minute>4) && (minute<10))  { 
89    MFIVE; 
90    MINUTES; 
91      display.setCursor(1,10);
92     display.print("Five  Minutes ");
93      display.println(" ");
94      display.display();
95   }  
96  if ((minute>9) && (minute<10)) { 
97    MTEN; 
98    MINUTES; 
99      display.setCursor(1,10);
100     display.print("Ten Minutes ");
101       display.println(" ");
102     display.display();
103    }
104  if ((minute>14) && (minute<20)) {
105    QUARTER; 
106       display.setCursor(1,10);
107     display.print("A Quarter ");
108      display.println(" ");
109      display.display();
110     }
111  if ((minute>19) && (minute<25)) { 
112    TWENTY; 
113    MINUTES; 
114     display.setCursor(1,10);
115     display.print("Twenty Minutes ");
116      display.println("  ");
117      display.display();
118     }
119  if ((minute>24) && (minute<30))  { 
120    TWENTY; 
121    MFIVE; 
122    MINUTES;
123      display.setCursor(1,10);
124     display.print("Twenty Five Minutes ");
125      display.println(" ");
126      display.display();
127      }  
128  if ((minute>29) && (minute<35)) {
129    HALF;
130       display.setCursor(1,10);
131     display.print("Half ");
132       display.println(" ");
133       display.display();
134    }
135  if ((minute>34)  && (minute<40)) { 
136    TWENTY; 
137    MFIVE; 
138     display.setCursor(1,10);
139     display.print("Twenty Five Minutes ");
140       display.println(" ");
141       display.display();
142   }  
143  if ((minute>39) && (minute<45)) { 
144    TWENTY; 
145    MINUTES; 
146    display.setCursor(1,10);
147     display.print("Twenty  Minutes ");
148       display.println(" ");
149      display.display();
150   }
151  if ((minute>44) && (minute<50)) {
152    QUARTER; 
153    display.setCursor(1,10);
154     display.print("A Quarter ");
155       display.println(" ");
156      display.display();
157  }
158  if ((minute>49) && (minute<55)) { 
159    MTEN; 
160    MINUTES; 
161      display.setCursor(1,10);
162     display.print("Ten Minutes ");
163       display.println(" ");
164     display.display();
165  } 
166  if (minute>54) { 
167    MFIVE; 
168    MINUTES; 
169     display.setCursor(1,10);
170     display.print("Five Minutes ");
171      display.println(" ");
172     display.display();
173  }
174  if ((minute <5))
175  {
176    switch (hour) {
177    case 1:
178    case  13: 
179      ONE; 
180        display.print("One O'Clock");
181        display.display();
182      break;
183    case 2:
184    case 14: 
185      TWO; 
186         display.print("Two  O'Clock");
187         display.display();
188      break;
189    case 3: 
190    case  15:
191      THREE; 
192         display.print("Three O'Clock");
193         display.display();
194      break;
195    case 4: 
196    case 16:
197      FOUR; 
198         display.print("Four  O'Clock");
199         display.display();
200      break;
201    case 5: 
202    case  17:
203      HFIVE; 
204        display.print("Five O'Clock");
205         display.display();
206      break;
207    case 6: 
208    case 18:
209      SIX; 
210         display.print("Six  O'Clock");
211         display.display();
212      break;
213    case 7: 
214    case  19:
215      SEVEN; 
216         display.print("Seven O'Clock");
217         display.display();
218      break;
219    case 8: 
220    case 20:
221      EIGHT; 
222         display.print("Eight  O'Clock");
223         display.display();
224      break;
225    case 9: 
226    case  21:
227      NINE; 
228         display.print("Nine O'Clock");
229         display.display();
230      break;
231    case 10:
232    case 22: 
233      HTEN; 
234         display.print("Ten  O'Clock");
235         display.display();
236      break;
237    case 11:
238    case  23: 
239      ELEVEN; 
240        display.print("Eleven O'Clock");
241         display.display();
242      break;
243    case 0:
244    case 12: 
245      TWELVE; 
246         display.print("Twelve  O'Clock");
247         display.display();
248      break;
249    }
250
251  } else
252    if ((minute < 35) && (minute >4))
253    {
254      PAST;
255         display.print("Past  ");
256         display.display();
257      switch (hour) {
258      case 1:
259      case 13: 
260        ONE; 
261           display.print("One O'Clock");
262           display.display();
263        break;
264      case 2: 
265      case  14:
266        TWO; 
267           display.print("Two O'Clock");
268           display.display();
269        break;
270      case 3: 
271      case 15:
272        THREE; 
273           display.print("Three  O'Clock");
274           display.display();
275        break;
276      case 4:  
277      case 16:
278        FOUR; 
279           display.print("Four O'Clock");
280           display.display();
281        break;
282      case 5: 
283      case  17:
284        HFIVE; 
285           display.print("Five O'Clock");
286           display.display();
287        break;
288      case 6: 
289      case 18:
290        SIX; 
291           display.print("Six  O'Clock");
292           display.display();
293        break;
294      case 7:  
295      case 19:
296        SEVEN; 
297           display.print("Seven O'Clock");
298           display.display();
299        break;
300      case 8: 
301      case  20:
302        EIGHT; 
303           display.print("Eight O'Clock");
304           display.display();
305        break;
306      case 9: 
307      case 21:
308        NINE; 
309           display.print("Nine  O'Clock");
310           display.display();
311        break;
312      case 10:
313      case 22: 
314        HTEN; 
315           display.print("Ten O'Clock");
316           display.display();
317        break;
318      case 11:
319      case  23: 
320        ELEVEN; 
321           display.print("Eleven O'Clock");
322           display.display();
323        break;
324      case 0:
325      case 12: 
326        TWELVE; 
327           display.print("Twelve  O'Clock");
328           display.display();
329        break;
330      }
331    }
332    else
333    {
334      // if we are greater than 34 minutes past the hour then  display
335      // the next hour, as we will be displaying a 'to' sign
336      TO;
337        display.print("To ");
338         display.display();
339      switch (hour)  {
340      case 1: 
341      case 13:
342        TWO; 
343           display.print("Two  O'Clock");
344           display.display();
345        break;
346      case 14:
347      case 2: 
348        THREE; 
349           display.print("Three O'Clock");
350           display.display();
351        break;
352      case 15:
353      case  3: 
354        FOUR; 
355           display.print("Four O'Clock");
356           display.display();
357        break;
358      case 4: 
359      case 16:
360        HFIVE; 
361           display.print("Five  O'Clock");
362           display.display();
363        break;
364      case 5:  
365      case 17:
366        SIX; 
367           display.print("Six O'Clock");
368           display.display();
369        break;
370      case 6: 
371      case  18:
372        SEVEN; 
373           display.print("Seven O'Clock");
374           display.display();
375        break;
376      case 7: 
377      case 19:
378        EIGHT; 
379          display.print("Eight  O'Clock");
380           display.display();
381        break;
382      case 8:  
383      case 20:
384        NINE; 
385           display.print("Nine O'Clock");
386           display.display();
387        break;
388      case 9: 
389      case  21:
390        HTEN; 
391           display.print("Ten O'Clock");
392           display.display();
393        break;
394      case 10: 
395      case 22:
396        ELEVEN; 
397         display.print("Eleven  O'Clock");
398         display.display();
399        break;
400      case 11: 
401      case 23:
402        TWELVE; 
403           display.print("Twelve O'Clock");
404           display.display();
405        break;
406      case 0:
407      case 12:  
408        ONE; 
409           display.print("One O'Clock");
410           display.display();
411        break;
412      }
413    }
414
415 }
416
417void loop()
418{
419  DateTime  now = RTC.now();
420    second=now.second(); 
421    minute=now.minute();
422     hour=now.hour();
423  if ( millis() - msTick >5000) {
424    msTick=millis();
425    digitalWrite(13,HIGH);
426    delay(50);
427    digitalWrite(13,LOW);  
428    delay(50);
429    digitalWrite(13,HIGH);
430    delay(50);
431    digitalWrite(13,LOW);  
432  }
433  if (second==59) // Update  the display every 1 minute...
434  
435 {
436     displaytime();
437   }
438  }		  
439
440
441
442

//OLED Word Clock


#include <Wire.h>  
#include"RTClib.h"
#include  <SPI.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>
#define  OLED_RESET 4
Adafruit_SSD1306 display(OLED_RESET);
#if (SSD1306_LCDHEIGHT  != 32)
#error("Height incorrect, please fix Adafruit_SSD1306.h!");
#endif
//  Display output
#define MINUTES
#define MTEN 	
#define HALF	
#define  PAST	
#define THREE	
#define ITIS	
#define TWENTY	
#define TO	  
#define TWO	   
#define SIX	 
#define TWELVE	
#define HFIVE	
#define  SEVEN	
#define OCLOCK	
#define ONE	   
#define QUARTER	
#define  EIGHT	
#define MFIVE	
#define ARDUINO	
#define ELEVEN	
#define HTEN	
#define  NINE	
#define FOUR
#define RBK	    
int hour=0, minute=0, second=0;
static  unsigned long msTick =0;  // the number of Millisecond Ticks since we last 
//  incremented the second counter
int  selftestmode;          // 1 = in self test  - flash display
 char Display1=0, Display2=0, Display3=0;
                  
//  RTC DEFINE-
RTC_DS1307 RTC ;
void setup()
{
  Serial.begin(9600);   //  setup the serial port to 9600 baud
  Wire.begin();
  RTC.begin();
  display.begin(SSD1306_SWITCHCAPVCC,  0x3C);  // initialize with the I2C addr 0x3C (for the 128x32)
  // init done
  //Clear the buffer.
  display.clearDisplay();
  //draw scrolling text
  testscrolltext();
  delay(2);
  display.clearDisplay();
    if ( RTC.isrunning())  {
      DateTime now = RTC.now();
       display.clearDisplay();
  }
      
  DateTime now = RTC.now();
    msTick=millis();      // Initialise  the msTick counter
  if ( RTC.isrunning() ) {
    // Get the current time  and date from the RTC chip 
    second=now.second();     
    minute=now.minute();
    hour=now.hour(); 
 display.clearDisplay();
  }
  displaytime();        //  display the current time
}
 void testscrolltext(void) {
  display.setTextSize(1);
  display.setTextColor(WHITE);
}
void displaytime(void){
  // start by  clearing the display to a known state
display.clearDisplay();
display.setCursor(30,0);
  display.print("It is");
 display.println(" ");
display.display();
  // now we display the appropriate minute counter
  if ((minute>4) && (minute<10))  { 
    MFIVE; 
    MINUTES; 
      display.setCursor(1,10);
     display.print("Five  Minutes ");
      display.println(" ");
      display.display();
   }  
  if ((minute>9) && (minute<10)) { 
    MTEN; 
    MINUTES; 
      display.setCursor(1,10);
     display.print("Ten Minutes ");
       display.println(" ");
     display.display();
    }
  if ((minute>14) && (minute<20)) {
    QUARTER; 
       display.setCursor(1,10);
     display.print("A Quarter ");
      display.println(" ");
      display.display();
     }
  if ((minute>19) && (minute<25)) { 
    TWENTY; 
    MINUTES; 
     display.setCursor(1,10);
     display.print("Twenty Minutes ");
      display.println("  ");
      display.display();
     }
  if ((minute>24) && (minute<30))  { 
    TWENTY; 
    MFIVE; 
    MINUTES;
      display.setCursor(1,10);
     display.print("Twenty Five Minutes ");
      display.println(" ");
      display.display();
      }  
  if ((minute>29) && (minute<35)) {
    HALF;
       display.setCursor(1,10);
     display.print("Half ");
       display.println(" ");
       display.display();
    }
  if ((minute>34)  && (minute<40)) { 
    TWENTY; 
    MFIVE; 
     display.setCursor(1,10);
     display.print("Twenty Five Minutes ");
       display.println(" ");
       display.display();
   }  
  if ((minute>39) && (minute<45)) { 
    TWENTY; 
    MINUTES; 
    display.setCursor(1,10);
     display.print("Twenty  Minutes ");
       display.println(" ");
      display.display();
   }
  if ((minute>44) && (minute<50)) {
    QUARTER; 
    display.setCursor(1,10);
     display.print("A Quarter ");
       display.println(" ");
      display.display();
  }
  if ((minute>49) && (minute<55)) { 
    MTEN; 
    MINUTES; 
      display.setCursor(1,10);
     display.print("Ten Minutes ");
       display.println(" ");
     display.display();
  } 
  if (minute>54) { 
    MFIVE; 
    MINUTES; 
     display.setCursor(1,10);
     display.print("Five Minutes ");
      display.println(" ");
     display.display();
  }
  if ((minute <5))
  {
    switch (hour) {
    case 1:
    case  13: 
      ONE; 
        display.print("One O'Clock");
        display.display();
      break;
    case 2:
    case 14: 
      TWO; 
         display.print("Two  O'Clock");
         display.display();
      break;
    case 3: 
    case  15:
      THREE; 
         display.print("Three O'Clock");
         display.display();
      break;
    case 4: 
    case 16:
      FOUR; 
         display.print("Four  O'Clock");
         display.display();
      break;
    case 5: 
    case  17:
      HFIVE; 
        display.print("Five O'Clock");
         display.display();
      break;
    case 6: 
    case 18:
      SIX; 
         display.print("Six  O'Clock");
         display.display();
      break;
    case 7: 
    case  19:
      SEVEN; 
         display.print("Seven O'Clock");
         display.display();
      break;
    case 8: 
    case 20:
      EIGHT; 
         display.print("Eight  O'Clock");
         display.display();
      break;
    case 9: 
    case  21:
      NINE; 
         display.print("Nine O'Clock");
         display.display();
      break;
    case 10:
    case 22: 
      HTEN; 
         display.print("Ten  O'Clock");
         display.display();
      break;
    case 11:
    case  23: 
      ELEVEN; 
        display.print("Eleven O'Clock");
         display.display();
      break;
    case 0:
    case 12: 
      TWELVE; 
         display.print("Twelve  O'Clock");
         display.display();
      break;
    }

  } else
    if ((minute < 35) && (minute >4))
    {
      PAST;
         display.print("Past  ");
         display.display();
      switch (hour) {
      case 1:
      case 13: 
        ONE; 
           display.print("One O'Clock");
           display.display();
        break;
      case 2: 
      case  14:
        TWO; 
           display.print("Two O'Clock");
           display.display();
        break;
      case 3: 
      case 15:
        THREE; 
           display.print("Three  O'Clock");
           display.display();
        break;
      case 4:  
      case 16:
        FOUR; 
           display.print("Four O'Clock");
           display.display();
        break;
      case 5: 
      case  17:
        HFIVE; 
           display.print("Five O'Clock");
           display.display();
        break;
      case 6: 
      case 18:
        SIX; 
           display.print("Six  O'Clock");
           display.display();
        break;
      case 7:  
      case 19:
        SEVEN; 
           display.print("Seven O'Clock");
           display.display();
        break;
      case 8: 
      case  20:
        EIGHT; 
           display.print("Eight O'Clock");
           display.display();
        break;
      case 9: 
      case 21:
        NINE; 
           display.print("Nine  O'Clock");
           display.display();
        break;
      case 10:
      case 22: 
        HTEN; 
           display.print("Ten O'Clock");
           display.display();
        break;
      case 11:
      case  23: 
        ELEVEN; 
           display.print("Eleven O'Clock");
           display.display();
        break;
      case 0:
      case 12: 
        TWELVE; 
           display.print("Twelve  O'Clock");
           display.display();
        break;
      }
    }
    else
    {
      // if we are greater than 34 minutes past the hour then  display
      // the next hour, as we will be displaying a 'to' sign
      TO;
        display.print("To ");
         display.display();
      switch (hour)  {
      case 1: 
      case 13:
        TWO; 
           display.print("Two  O'Clock");
           display.display();
        break;
      case 14:
      case 2: 
        THREE; 
           display.print("Three O'Clock");
           display.display();
        break;
      case 15:
      case  3: 
        FOUR; 
           display.print("Four O'Clock");
           display.display();
        break;
      case 4: 
      case 16:
        HFIVE; 
           display.print("Five  O'Clock");
           display.display();
        break;
      case 5:  
      case 17:
        SIX; 
           display.print("Six O'Clock");
           display.display();
        break;
      case 6: 
      case  18:
        SEVEN; 
           display.print("Seven O'Clock");
           display.display();
        break;
      case 7: 
      case 19:
        EIGHT; 
          display.print("Eight  O'Clock");
           display.display();
        break;
      case 8:  
      case 20:
        NINE; 
           display.print("Nine O'Clock");
           display.display();
        break;
      case 9: 
      case  21:
        HTEN; 
           display.print("Ten O'Clock");
           display.display();
        break;
      case 10: 
      case 22:
        ELEVEN; 
         display.print("Eleven  O'Clock");
         display.display();
        break;
      case 11: 
      case 23:
        TWELVE; 
           display.print("Twelve O'Clock");
           display.display();
        break;
      case 0:
      case 12:  
        ONE; 
           display.print("One O'Clock");
           display.display();
        break;
      }
    }

 }

void loop()
{
  DateTime  now = RTC.now();
    second=now.second(); 
    minute=now.minute();
     hour=now.hour();
  if ( millis() - msTick >5000) {
    msTick=millis();
    digitalWrite(13,HIGH);
    delay(50);
    digitalWrite(13,LOW);  
    delay(50);
    digitalWrite(13,HIGH);
    delay(50);
    digitalWrite(13,LOW);  
  }
  if (second==59) // Update  the display every 1 minute...
  
 {
     displaytime();
   }
  }

oled word clock

arduino

run RTCLib ds1307 to set time on rtc before using with display

1//OLED Word Clock
2
3
4#include <Wire.h>  
5#include"RTClib.h"
6#include
7  <SPI.h>
8#include <Adafruit_GFX.h>
9#include <Adafruit_SSD1306.h>
10#define
11  OLED_RESET 4
12Adafruit_SSD1306 display(OLED_RESET);
13#if (SSD1306_LCDHEIGHT
14  != 32)
15#error("Height incorrect, please fix Adafruit_SSD1306.h!");
16#endif
17//
18  Display output
19#define MINUTES
20#define MTEN 	
21#define HALF	
22#define
23  PAST	
24#define THREE	
25#define ITIS	
26#define TWENTY	
27#define TO	
28  
29#define TWO	   
30#define SIX	 
31#define TWELVE	
32#define HFIVE	
33#define
34  SEVEN	
35#define OCLOCK	
36#define ONE	   
37#define QUARTER	
38#define
39  EIGHT	
40#define MFIVE	
41#define ARDUINO	
42#define ELEVEN	
43#define HTEN	
44#define
45  NINE	
46#define FOUR
47#define RBK	    
48int hour=0, minute=0, second=0;
49static
50  unsigned long msTick =0;  // the number of Millisecond Ticks since we last 
51//
52  incremented the second counter
53int  selftestmode;          // 1 = in self test
54  - flash display
55 char Display1=0, Display2=0, Display3=0;
56                  
57//
58  RTC DEFINE-
59RTC_DS1307 RTC ;
60void setup()
61{
62  Serial.begin(9600);   //
63  setup the serial port to 9600 baud
64  Wire.begin();
65  RTC.begin();
66  display.begin(SSD1306_SWITCHCAPVCC,
67  0x3C);  // initialize with the I2C addr 0x3C (for the 128x32)
68  // init done
69
70  //Clear the buffer.
71  display.clearDisplay();
72  //draw scrolling text
73
74  testscrolltext();
75  delay(2);
76  display.clearDisplay();
77    if ( RTC.isrunning())
78  {
79      DateTime now = RTC.now();
80       display.clearDisplay();
81  }
82
83      
84  DateTime now = RTC.now();
85    msTick=millis();      // Initialise
86  the msTick counter
87  if ( RTC.isrunning() ) {
88    // Get the current time
89  and date from the RTC chip 
90    second=now.second();     
91    minute=now.minute();
92
93    hour=now.hour(); 
94 display.clearDisplay();
95  }
96  displaytime();        //
97  display the current time
98}
99 void testscrolltext(void) {
100  display.setTextSize(1);
101
102  display.setTextColor(WHITE);
103}
104void displaytime(void){
105  // start by
106  clearing the display to a known state
107display.clearDisplay();
108display.setCursor(30,0);
109
110  display.print("It is");
111 display.println(" ");
112display.display();
113
114  // now we display the appropriate minute counter
115  if ((minute>4) && (minute<10))
116  { 
117    MFIVE; 
118    MINUTES; 
119      display.setCursor(1,10);
120     display.print("Five
121  Minutes ");
122      display.println(" ");
123      display.display();
124   }
125  
126  if ((minute>9) && (minute<10)) { 
127    MTEN; 
128    MINUTES; 
129      display.setCursor(1,10);
130
131     display.print("Ten Minutes ");
132       display.println(" ");
133     display.display();
134
135    }
136  if ((minute>14) && (minute<20)) {
137    QUARTER; 
138       display.setCursor(1,10);
139
140     display.print("A Quarter ");
141      display.println(" ");
142      display.display();
143
144     }
145  if ((minute>19) && (minute<25)) { 
146    TWENTY; 
147    MINUTES; 
148
149     display.setCursor(1,10);
150     display.print("Twenty Minutes ");
151      display.println("
152  ");
153      display.display();
154     }
155  if ((minute>24) && (minute<30))
156  { 
157    TWENTY; 
158    MFIVE; 
159    MINUTES;
160      display.setCursor(1,10);
161
162     display.print("Twenty Five Minutes ");
163      display.println(" ");
164
165      display.display();
166      }  
167  if ((minute>29) && (minute<35)) {
168
169    HALF;
170       display.setCursor(1,10);
171     display.print("Half ");
172
173       display.println(" ");
174       display.display();
175    }
176  if ((minute>34)
177  && (minute<40)) { 
178    TWENTY; 
179    MFIVE; 
180     display.setCursor(1,10);
181
182     display.print("Twenty Five Minutes ");
183       display.println(" ");
184
185       display.display();
186   }  
187  if ((minute>39) && (minute<45)) { 
188
189    TWENTY; 
190    MINUTES; 
191    display.setCursor(1,10);
192     display.print("Twenty
193  Minutes ");
194       display.println(" ");
195      display.display();
196   }
197
198  if ((minute>44) && (minute<50)) {
199    QUARTER; 
200    display.setCursor(1,10);
201
202     display.print("A Quarter ");
203       display.println(" ");
204      display.display();
205
206  }
207  if ((minute>49) && (minute<55)) { 
208    MTEN; 
209    MINUTES; 
210      display.setCursor(1,10);
211
212     display.print("Ten Minutes ");
213       display.println(" ");
214     display.display();
215
216  } 
217  if (minute>54) { 
218    MFIVE; 
219    MINUTES; 
220     display.setCursor(1,10);
221
222     display.print("Five Minutes ");
223      display.println(" ");
224     display.display();
225
226  }
227  if ((minute <5))
228  {
229    switch (hour) {
230    case 1:
231    case
232  13: 
233      ONE; 
234        display.print("One O'Clock");
235        display.display();
236
237      break;
238    case 2:
239    case 14: 
240      TWO; 
241         display.print("Two
242  O'Clock");
243         display.display();
244      break;
245    case 3: 
246    case
247  15:
248      THREE; 
249         display.print("Three O'Clock");
250         display.display();
251
252      break;
253    case 4: 
254    case 16:
255      FOUR; 
256         display.print("Four
257  O'Clock");
258         display.display();
259      break;
260    case 5: 
261    case
262  17:
263      HFIVE; 
264        display.print("Five O'Clock");
265         display.display();
266
267      break;
268    case 6: 
269    case 18:
270      SIX; 
271         display.print("Six
272  O'Clock");
273         display.display();
274      break;
275    case 7: 
276    case
277  19:
278      SEVEN; 
279         display.print("Seven O'Clock");
280         display.display();
281
282      break;
283    case 8: 
284    case 20:
285      EIGHT; 
286         display.print("Eight
287  O'Clock");
288         display.display();
289      break;
290    case 9: 
291    case
292  21:
293      NINE; 
294         display.print("Nine O'Clock");
295         display.display();
296
297      break;
298    case 10:
299    case 22: 
300      HTEN; 
301         display.print("Ten
302  O'Clock");
303         display.display();
304      break;
305    case 11:
306    case
307  23: 
308      ELEVEN; 
309        display.print("Eleven O'Clock");
310         display.display();
311
312      break;
313    case 0:
314    case 12: 
315      TWELVE; 
316         display.print("Twelve
317  O'Clock");
318         display.display();
319      break;
320    }
321
322  } else
323
324    if ((minute < 35) && (minute >4))
325    {
326      PAST;
327         display.print("Past
328  ");
329         display.display();
330      switch (hour) {
331      case 1:
332
333      case 13: 
334        ONE; 
335           display.print("One O'Clock");
336
337           display.display();
338        break;
339      case 2: 
340      case
341  14:
342        TWO; 
343           display.print("Two O'Clock");
344           display.display();
345
346        break;
347      case 3: 
348      case 15:
349        THREE; 
350           display.print("Three
351  O'Clock");
352           display.display();
353        break;
354      case 4:
355  
356      case 16:
357        FOUR; 
358           display.print("Four O'Clock");
359
360           display.display();
361        break;
362      case 5: 
363      case
364  17:
365        HFIVE; 
366           display.print("Five O'Clock");
367           display.display();
368
369        break;
370      case 6: 
371      case 18:
372        SIX; 
373           display.print("Six
374  O'Clock");
375           display.display();
376        break;
377      case 7:
378  
379      case 19:
380        SEVEN; 
381           display.print("Seven O'Clock");
382
383           display.display();
384        break;
385      case 8: 
386      case
387  20:
388        EIGHT; 
389           display.print("Eight O'Clock");
390           display.display();
391
392        break;
393      case 9: 
394      case 21:
395        NINE; 
396           display.print("Nine
397  O'Clock");
398           display.display();
399        break;
400      case 10:
401
402      case 22: 
403        HTEN; 
404           display.print("Ten O'Clock");
405
406           display.display();
407        break;
408      case 11:
409      case
410  23: 
411        ELEVEN; 
412           display.print("Eleven O'Clock");
413           display.display();
414
415        break;
416      case 0:
417      case 12: 
418        TWELVE; 
419           display.print("Twelve
420  O'Clock");
421           display.display();
422        break;
423      }
424    }
425
426    else
427    {
428      // if we are greater than 34 minutes past the hour then
429  display
430      // the next hour, as we will be displaying a 'to' sign
431      TO;
432
433        display.print("To ");
434         display.display();
435      switch (hour)
436  {
437      case 1: 
438      case 13:
439        TWO; 
440           display.print("Two
441  O'Clock");
442           display.display();
443        break;
444      case 14:
445
446      case 2: 
447        THREE; 
448           display.print("Three O'Clock");
449
450           display.display();
451        break;
452      case 15:
453      case
454  3: 
455        FOUR; 
456           display.print("Four O'Clock");
457           display.display();
458
459        break;
460      case 4: 
461      case 16:
462        HFIVE; 
463           display.print("Five
464  O'Clock");
465           display.display();
466        break;
467      case 5:
468  
469      case 17:
470        SIX; 
471           display.print("Six O'Clock");
472
473           display.display();
474        break;
475      case 6: 
476      case
477  18:
478        SEVEN; 
479           display.print("Seven O'Clock");
480           display.display();
481
482        break;
483      case 7: 
484      case 19:
485        EIGHT; 
486          display.print("Eight
487  O'Clock");
488           display.display();
489        break;
490      case 8:
491  
492      case 20:
493        NINE; 
494           display.print("Nine O'Clock");
495
496           display.display();
497        break;
498      case 9: 
499      case
500  21:
501        HTEN; 
502           display.print("Ten O'Clock");
503           display.display();
504
505        break;
506      case 10: 
507      case 22:
508        ELEVEN; 
509         display.print("Eleven
510  O'Clock");
511         display.display();
512        break;
513      case 11: 
514
515      case 23:
516        TWELVE; 
517           display.print("Twelve O'Clock");
518
519           display.display();
520        break;
521      case 0:
522      case 12:
523  
524        ONE; 
525           display.print("One O'Clock");
526           display.display();
527
528        break;
529      }
530    }
531
532 }
533
534void loop()
535{
536  DateTime
537  now = RTC.now();
538    second=now.second(); 
539    minute=now.minute();
540     hour=now.hour();
541
542  if ( millis() - msTick >5000) {
543    msTick=millis();
544    digitalWrite(13,HIGH);
545
546    delay(50);
547    digitalWrite(13,LOW);  
548    delay(50);
549    digitalWrite(13,HIGH);
550
551    delay(50);
552    digitalWrite(13,LOW);  
553  }
554  if (second==59) // Update
555  the display every 1 minute...
556  
557 {
558     displaytime();
559   }
560  }		
561  
562
563
564
565

//OLED Word Clock


#include <Wire.h>  
#include"RTClib.h"
#include
  <SPI.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>
#define
  OLED_RESET 4
Adafruit_SSD1306 display(OLED_RESET);
#if (SSD1306_LCDHEIGHT
  != 32)
#error("Height incorrect, please fix Adafruit_SSD1306.h!");
#endif
//
  Display output
#define MINUTES
#define MTEN 	
#define HALF	
#define
  PAST	
#define THREE	
#define ITIS	
#define TWENTY	
#define TO	
  
#define TWO	   
#define SIX	 
#define TWELVE	
#define HFIVE	
#define
  SEVEN	
#define OCLOCK	
#define ONE	   
#define QUARTER	
#define
  EIGHT	
#define MFIVE	
#define ARDUINO	
#define ELEVEN	
#define HTEN	
#define
  NINE	
#define FOUR
#define RBK	    
int hour=0, minute=0, second=0;
static
  unsigned long msTick =0;  // the number of Millisecond Ticks since we last 
//
  incremented the second counter
int  selftestmode;          // 1 = in self test
  - flash display
 char Display1=0, Display2=0, Display3=0;
                  
//
  RTC DEFINE-
RTC_DS1307 RTC ;
void setup()
{
  Serial.begin(9600);   //
  setup the serial port to 9600 baud
  Wire.begin();
  RTC.begin();
  display.begin(SSD1306_SWITCHCAPVCC,
  0x3C);  // initialize with the I2C addr 0x3C (for the 128x32)
  // init done

  //Clear the buffer.
  display.clearDisplay();
  //draw scrolling text

  testscrolltext();
  delay(2);
  display.clearDisplay();
    if ( RTC.isrunning())
  {
      DateTime now = RTC.now();
       display.clearDisplay();
  }

      
  DateTime now = RTC.now();
    msTick=millis();      // Initialise
  the msTick counter
  if ( RTC.isrunning() ) {
    // Get the current time
  and date from the RTC chip 
    second=now.second();     
    minute=now.minute();

    hour=now.hour(); 
 display.clearDisplay();
  }
  displaytime();        //
  display the current time
}
 void testscrolltext(void) {
  display.setTextSize(1);

  display.setTextColor(WHITE);
}
void displaytime(void){
  // start by
  clearing the display to a known state
display.clearDisplay();
display.setCursor(30,0);

  display.print("It is");
 display.println(" ");
display.display();

  // now we display the appropriate minute counter
  if ((minute>4) && (minute<10))
  { 
    MFIVE; 
    MINUTES; 
      display.setCursor(1,10);
     display.print("Five
  Minutes ");
      display.println(" ");
      display.display();
   }
  
  if ((minute>9) && (minute<10)) { 
    MTEN; 
    MINUTES; 
      display.setCursor(1,10);

     display.print("Ten Minutes ");
       display.println(" ");
     display.display();

    }
  if ((minute>14) && (minute<20)) {
    QUARTER; 
       display.setCursor(1,10);

     display.print("A Quarter ");
      display.println(" ");
      display.display();

     }
  if ((minute>19) && (minute<25)) { 
    TWENTY; 
    MINUTES; 

     display.setCursor(1,10);
     display.print("Twenty Minutes ");
      display.println("
  ");
      display.display();
     }
  if ((minute>24) && (minute<30))
  { 
    TWENTY; 
    MFIVE; 
    MINUTES;
      display.setCursor(1,10);

     display.print("Twenty Five Minutes ");
      display.println(" ");

      display.display();
      }  
  if ((minute>29) && (minute<35)) {

    HALF;
       display.setCursor(1,10);
     display.print("Half ");

       display.println(" ");
       display.display();
    }
  if ((minute>34)
  && (minute<40)) { 
    TWENTY; 
    MFIVE; 
     display.setCursor(1,10);

     display.print("Twenty Five Minutes ");
       display.println(" ");

       display.display();
   }  
  if ((minute>39) && (minute<45)) { 

    TWENTY; 
    MINUTES; 
    display.setCursor(1,10);
     display.print("Twenty
  Minutes ");
       display.println(" ");
      display.display();
   }

  if ((minute>44) && (minute<50)) {
    QUARTER; 
    display.setCursor(1,10);

     display.print("A Quarter ");
       display.println(" ");
      display.display();

  }
  if ((minute>49) && (minute<55)) { 
    MTEN; 
    MINUTES; 
      display.setCursor(1,10);

     display.print("Ten Minutes ");
       display.println(" ");
     display.display();

  } 
  if (minute>54) { 
    MFIVE; 
    MINUTES; 
     display.setCursor(1,10);

     display.print("Five Minutes ");
      display.println(" ");
     display.display();

  }
  if ((minute <5))
  {
    switch (hour) {
    case 1:
    case
  13: 
      ONE; 
        display.print("One O'Clock");
        display.display();

      break;
    case 2:
    case 14: 
      TWO; 
         display.print("Two
  O'Clock");
         display.display();
      break;
    case 3: 
    case
  15:
      THREE; 
         display.print("Three O'Clock");
         display.display();

      break;
    case 4: 
    case 16:
      FOUR; 
         display.print("Four
  O'Clock");
         display.display();
      break;
    case 5: 
    case
  17:
      HFIVE; 
        display.print("Five O'Clock");
         display.display();

      break;
    case 6: 
    case 18:
      SIX; 
         display.print("Six
  O'Clock");
         display.display();
      break;
    case 7: 
    case
  19:
      SEVEN; 
         display.print("Seven O'Clock");
         display.display();

      break;
    case 8: 
    case 20:
      EIGHT; 
         display.print("Eight
  O'Clock");
         display.display();
      break;
    case 9: 
    case
  21:
      NINE; 
         display.print("Nine O'Clock");
         display.display();

      break;
    case 10:
    case 22: 
      HTEN; 
         display.print("Ten
  O'Clock");
         display.display();
      break;
    case 11:
    case
  23: 
      ELEVEN; 
        display.print("Eleven O'Clock");
         display.display();

      break;
    case 0:
    case 12: 
      TWELVE; 
         display.print("Twelve
  O'Clock");
         display.display();
      break;
    }

  } else

    if ((minute < 35) && (minute >4))
    {
      PAST;
         display.print("Past
  ");
         display.display();
      switch (hour) {
      case 1:

      case 13: 
        ONE; 
           display.print("One O'Clock");

           display.display();
        break;
      case 2: 
      case
  14:
        TWO; 
           display.print("Two O'Clock");
           display.display();

        break;
      case 3: 
      case 15:
        THREE; 
           display.print("Three
  O'Clock");
           display.display();
        break;
      case 4:
  
      case 16:
        FOUR; 
           display.print("Four O'Clock");

           display.display();
        break;
      case 5: 
      case
  17:
        HFIVE; 
           display.print("Five O'Clock");
           display.display();

        break;
      case 6: 
      case 18:
        SIX; 
           display.print("Six
  O'Clock");
           display.display();
        break;
      case 7:
  
      case 19:
        SEVEN; 
           display.print("Seven O'Clock");

           display.display();
        break;
      case 8: 
      case
  20:
        EIGHT; 
           display.print("Eight O'Clock");
           display.display();

        break;
      case 9: 
      case 21:
        NINE; 
           display.print("Nine
  O'Clock");
           display.display();
        break;
      case 10:

      case 22: 
        HTEN; 
           display.print("Ten O'Clock");

           display.display();
        break;
      case 11:
      case
  23: 
        ELEVEN; 
           display.print("Eleven O'Clock");
           display.display();

        break;
      case 0:
      case 12: 
        TWELVE; 
           display.print("Twelve
  O'Clock");
           display.display();
        break;
      }
    }

    else
    {
      // if we are greater than 34 minutes past the hour then
  display
      // the next hour, as we will be displaying a 'to' sign
      TO;

        display.print("To ");
         display.display();
      switch (hour)
  {
      case 1: 
      case 13:
        TWO; 
           display.print("Two
  O'Clock");
           display.display();
        break;
      case 14:

      case 2: 
        THREE; 
           display.print("Three O'Clock");

           display.display();
        break;
      case 15:
      case
  3: 
        FOUR; 
           display.print("Four O'Clock");
           display.display();

        break;
      case 4: 
      case 16:
        HFIVE; 
           display.print("Five
  O'Clock");
           display.display();
        break;
      case 5:
  
      case 17:
        SIX; 
           display.print("Six O'Clock");

           display.display();
        break;
      case 6: 
      case
  18:
        SEVEN; 
           display.print("Seven O'Clock");
           display.display();

        break;
      case 7: 
      case 19:
        EIGHT; 
          display.print("Eight
  O'Clock");
           display.display();
        break;
      case 8:
  
      case 20:
        NINE; 
           display.print("Nine O'Clock");

           display.display();
        break;
      case 9: 
      case
  21:
        HTEN; 
           display.print("Ten O'Clock");
           display.display();

        break;
      case 10: 
      case 22:
        ELEVEN; 
         display.print("Eleven
  O'Clock");
         display.display();
        break;
      case 11: 

      case 23:
        TWELVE; 
           display.print("Twelve O'Clock");

           display.display();
        break;
      case 0:
      case 12:
  
        ONE; 
           display.print("One O'Clock");
           display.display();

        break;
      }
    }

 }

void loop()
{
  DateTime
  now = RTC.now();
    second=now.second(); 
    minute=now.minute();
     hour=now.hour();

  if ( millis() - msTick >5000) {
    msTick=millis();
    digitalWrite(13,HIGH);

    delay(50);
    digitalWrite(13,LOW);  
    delay(50);
    digitalWrite(13,HIGH);

    delay(50);
    digitalWrite(13,LOW);  
  }
  if (second==59) // Update
  the display every 1 minute...
  
 {
     displaytime();
   }
  }

Downloadable files

oled word clock

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