RTC1302 Clock using Nokia5110 Display and esp8266 NodeMCU

A simple program to display RTC information on the Nokia5110 lcd using an esp8266 NodeMCU

Apr 23, 2022

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clock

rtc

nokia5110

Components and supplies

rtc ds1302 module

Nokia 5110 LCD

Breadboard (generic)

esp8266 NodeMCU

Project description

Code

Updated Software

arduino

Flash the esp using the Arduino IDE

1
2#include <Arduino.h>
3#include <Ds1302.h>
4#include <Adafruit_PCD8544.h>   // include adafruit PCD8544 (Nokia 5110) library
5
6
7// DS1302 RTC instance
8Ds1302   rtc(15,12,13);
9// Nokia 5110 LCD module connections CLK, DIN, D/C, CS, RST (opposite   to the actual pin positions !!)
10Adafruit_PCD8544 display = Adafruit_PCD8544(14,   2, 0, 4, 5);
11const static char* WeekDays[] =
12{
13    "  Mon   ",
14    "   Tues   ",
15    "  Wed   ",
16    " Thurs  ",
17    "  Fri   ",
18    "   Sat   ",
19    "  Sun   "
20};
21
22
23void setup() {
24    display.begin();
25     // initialize the RTC
26    rtc.init();
27    display.setContrast(60);
28     display.clearDisplay();   // clears the screen and buffer
29    display.drawRect(0,   0, 84, 30, BLACK);
30    display.drawRect(0, 29, 84, 12, BLACK);
31}
32
33
34void   loop()
35{
36    // get the current time
37    Ds1302::DateTime now;
38    rtc.getDateTime(&now);
39     static uint8_t last_second = 0;
40    if (last_second != now.second)
41    {
42         last_second = now.second;
43
44        display.setTextColor(BLACK);
45         display.setTextSize(2);
46        display.setCursor(6,10);
47        if   (now.hour <= 9) { //If Hour is single figures, put a 0 in front
48        display.print("0");
49         }
50        display.print(now.hour);
51        display.print(":");
52      if (now.minute <= 9) {  //If Minute is single figures, put a 0 in front
53         display.print("0");
54     }
55        display.print(now.minute);
56   //      display.print(":");
57        display.setTextSize(1); 
58        if   (now.second <= 9) {  //If Seconds is single figures, put a 0 in front
59        display.print("0");
60      } 
61        display.print(now.second);
62
63        
64        display.setCursor(0,31);
65         display.print(WeekDays[now.dow -1]);
66        display.print(now.day);
67         display.print("/");
68        display.print(now.month);
69        
70         display.display();
71
72        
73        display.setTextColor(WHITE);
74         display.setCursor(0,31);
75        display.print(WeekDays[now.dow -1]);
76         display.print(now.day);
77        display.print("/");
78        display.print(now.month);            
79        
80                
81        
82        display.setTextSize(2);
83         display.setCursor(6,10);
84     if (now.hour <= 9) {
85        display.print("0");
86     }
87       display.print(now.hour);
88       display.print(":");
89     if   (now.minute <= 9) {
90       display.print("0");
91  }
92       display.print(now.minute);
93   //     display.print(":");
94       display.setTextSize(1);
95     if (now.second   <= 9) {
96       display.print("0");
97  } 
98      display.print(now.second);
99   
100// No need to display the screen again
101 
102    }
103    delay(100);
104}
105

#include <Arduino.h>
#include <Ds1302.h>
#include <Adafruit_PCD8544.h>   // include adafruit PCD8544 (Nokia 5110) library


// DS1302 RTC instance
Ds1302   rtc(15,12,13);
// Nokia 5110 LCD module connections CLK, DIN, D/C, CS, RST (opposite   to the actual pin positions !!)
Adafruit_PCD8544 display = Adafruit_PCD8544(14,   2, 0, 4, 5);
const static char* WeekDays[] =
{
    "  Mon   ",
    "   Tues   ",
    "  Wed   ",
    " Thurs  ",
    "  Fri   ",
    "   Sat   ",
    "  Sun   "
};


void setup() {
    display.begin();
     // initialize the RTC
    rtc.init();
    display.setContrast(60);
     display.clearDisplay();   // clears the screen and buffer
    display.drawRect(0,   0, 84, 30, BLACK);
    display.drawRect(0, 29, 84, 12, BLACK);
}


void   loop()
{
    // get the current time
    Ds1302::DateTime now;
    rtc.getDateTime(&now);
     static uint8_t last_second = 0;
    if (last_second != now.second)
    {
         last_second = now.second;

        display.setTextColor(BLACK);
         display.setTextSize(2);
        display.setCursor(6,10);
        if   (now.hour <= 9) { //If Hour is single figures, put a 0 in front
        display.print("0");
         }
        display.print(now.hour);
        display.print(":");
      if (now.minute <= 9) {  //If Minute is single figures, put a 0 in front
         display.print("0");
     }
        display.print(now.minute);
   //      display.print(":");
        display.setTextSize(1); 
        if   (now.second <= 9) {  //If Seconds is single figures, put a 0 in front
        display.print("0");
      } 
        display.print(now.second);

        
        display.setCursor(0,31);
         display.print(WeekDays[now.dow -1]);
        display.print(now.day);
         display.print("/");
        display.print(now.month);
        
         display.display();

        
        display.setTextColor(WHITE);
         display.setCursor(0,31);
        display.print(WeekDays[now.dow -1]);
         display.print(now.day);
        display.print("/");
        display.print(now.month);            
        
                
        
        display.setTextSize(2);
         display.setCursor(6,10);
     if (now.hour <= 9) {
        display.print("0");
     }
       display.print(now.hour);
       display.print(":");
     if   (now.minute <= 9) {
       display.print("0");
  }
       display.print(now.minute);
   //     display.print(":");
       display.setTextSize(1);
     if (now.second   <= 9) {
       display.print("0");
  } 
      display.print(now.second);
   
// No need to display the screen again
 
    }
    delay(100);
}

Updated Software

arduino

Flash the esp using the Arduino IDE

1
2#include <Arduino.h>
3#include <Ds1302.h>
4#include <Adafruit_PCD8544.h>  // include adafruit PCD8544 (Nokia 5110) library
5
6
7// DS1302 RTC instance
8Ds1302  rtc(15,12,13);
9// Nokia 5110 LCD module connections CLK, DIN, D/C, CS, RST (opposite  to the actual pin positions !!)
10Adafruit_PCD8544 display = Adafruit_PCD8544(14,  2, 0, 4, 5);
11const static char* WeekDays[] =
12{
13    "  Mon   ",
14    "  Tues   ",
15    "  Wed   ",
16    " Thurs  ",
17    "  Fri   ",
18    "  Sat   ",
19    "  Sun   "
20};
21
22
23void setup() {
24    display.begin();
25    // initialize the RTC
26    rtc.init();
27    display.setContrast(60);
28    display.clearDisplay();   // clears the screen and buffer
29    display.drawRect(0,  0, 84, 30, BLACK);
30    display.drawRect(0, 29, 84, 12, BLACK);
31}
32
33
34void  loop()
35{
36    // get the current time
37    Ds1302::DateTime now;
38    rtc.getDateTime(&now);
39    static uint8_t last_second = 0;
40    if (last_second != now.second)
41    {
42        last_second = now.second;
43
44        display.setTextColor(BLACK);
45        display.setTextSize(2);
46        display.setCursor(6,10);
47        if  (now.hour <= 9) { //If Hour is single figures, put a 0 in front
48        display.print("0");
49        }
50        display.print(now.hour);
51        display.print(":");
52     if (now.minute <= 9) {  //If Minute is single figures, put a 0 in front
53        display.print("0");
54     }
55        display.print(now.minute);
56  //      display.print(":");
57        display.setTextSize(1); 
58        if  (now.second <= 9) {  //If Seconds is single figures, put a 0 in front
59        display.print("0");
60     } 
61        display.print(now.second);
62
63        
64        display.setCursor(0,31);
65        display.print(WeekDays[now.dow -1]);
66        display.print(now.day);
67        display.print("/");
68        display.print(now.month);
69        
70        display.display();
71
72        
73        display.setTextColor(WHITE);
74        display.setCursor(0,31);
75        display.print(WeekDays[now.dow -1]);
76        display.print(now.day);
77        display.print("/");
78        display.print(now.month);           
79        
80                
81        
82        display.setTextSize(2);
83        display.setCursor(6,10);
84     if (now.hour <= 9) {
85        display.print("0");
86    }
87       display.print(now.hour);
88       display.print(":");
89     if  (now.minute <= 9) {
90       display.print("0");
91  }
92       display.print(now.minute);
93  //     display.print(":");
94       display.setTextSize(1);
95     if (now.second  <= 9) {
96       display.print("0");
97  } 
98      display.print(now.second);
99  
100// No need to display the screen again
101 
102    }
103    delay(100);
104}
105

#include <Arduino.h>
#include <Ds1302.h>
#include <Adafruit_PCD8544.h>  // include adafruit PCD8544 (Nokia 5110) library


// DS1302 RTC instance
Ds1302  rtc(15,12,13);
// Nokia 5110 LCD module connections CLK, DIN, D/C, CS, RST (opposite  to the actual pin positions !!)
Adafruit_PCD8544 display = Adafruit_PCD8544(14,  2, 0, 4, 5);
const static char* WeekDays[] =
{
    "  Mon   ",
    "  Tues   ",
    "  Wed   ",
    " Thurs  ",
    "  Fri   ",
    "  Sat   ",
    "  Sun   "
};


void setup() {
    display.begin();
    // initialize the RTC
    rtc.init();
    display.setContrast(60);
    display.clearDisplay();   // clears the screen and buffer
    display.drawRect(0,  0, 84, 30, BLACK);
    display.drawRect(0, 29, 84, 12, BLACK);
}


void  loop()
{
    // get the current time
    Ds1302::DateTime now;
    rtc.getDateTime(&now);
    static uint8_t last_second = 0;
    if (last_second != now.second)
    {
        last_second = now.second;

        display.setTextColor(BLACK);
        display.setTextSize(2);
        display.setCursor(6,10);
        if  (now.hour <= 9) { //If Hour is single figures, put a 0 in front
        display.print("0");
        }
        display.print(now.hour);
        display.print(":");
     if (now.minute <= 9) {  //If Minute is single figures, put a 0 in front
        display.print("0");
     }
        display.print(now.minute);
  //      display.print(":");
        display.setTextSize(1); 
        if  (now.second <= 9) {  //If Seconds is single figures, put a 0 in front
        display.print("0");
     } 
        display.print(now.second);

        
        display.setCursor(0,31);
        display.print(WeekDays[now.dow -1]);
        display.print(now.day);
        display.print("/");
        display.print(now.month);
        
        display.display();

        
        display.setTextColor(WHITE);
        display.setCursor(0,31);
        display.print(WeekDays[now.dow -1]);
        display.print(now.day);
        display.print("/");
        display.print(now.month);           
        
                
        
        display.setTextSize(2);
        display.setCursor(6,10);
     if (now.hour <= 9) {
        display.print("0");
    }
       display.print(now.hour);
       display.print(":");
     if  (now.minute <= 9) {
       display.print("0");
  }
       display.print(now.minute);
  //     display.print(":");
       display.setTextSize(1);
     if (now.second  <= 9) {
       display.print("0");
  } 
      display.print(now.second);
  
// No need to display the screen again
 
    }
    delay(100);
}

Downloadable files

Circuit pin diagram

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stevie135s

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11 Projects

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Components and supplies

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Downloadable files