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Friday, September 26, 2014

Manual adjust for RTC clock with Arduino and 7-segment LED display

   For a good clock must use a RTC (real-time clock) like DS1307. For Arduino enthusiasts and hobbylist exists some RTC module with DS1307, but you can made yourself a good RTC module like me.
   Original schematic is from DS1307 datasheet, but I redesigned schematic using freeversion of Eagle PCB Software:
   Note: Battery is CR2032, like in schematic... in boards is a little error

   A full schematic for RTC clock with Arduino is:

   Compared to other schematics that can adjust time (reset clock at 0:00, adjust hours and minutes). Original schematic, design and sketch is from article Using Arduino with a DS1307 Real Time Clock by Lewis Loflin.
   If you want to change time, must push and hold S3 (adjust) switch and display is change on 0:00, then push S1 (hour) or S2 (minute) repeatedly until time is ok, after this realise S3, and time is put in RTC.
   I use a multiplexed 4-digit 7-segment display with common anode same in article named Arduino UNO running 4-digit 7-segment display from http://www.hobbytronics.co.uk/. Is a unusual schematic, but works fine; a usual schematic use resistors for current limit.
   My sketch is:
/*
 4 digit 7 segment display: http://www.sparkfun.com/products/9483
 Datasheet: http://www.sparkfun.com/datasheets/Components/LED/7-Segment/YSD-439AR6B-35.pdf
 7 segments + 4 digits + 1 colon = 12 pins required for full control 
 */
// modified connexion by niq_ro from http://nicuflorica.blogspot.com
// for my Luckylight KW4-563ASA
// dataseet: http://www.tme.eu/ro/Document/dfc2efde2e22005fd28615e298ea2655/KW4-563XSA.pdf

int digit1 = 11; //PWM Display pin 12 (digit1 is common anonds A1 from right side)
int digit2 = 10; //PWM Display pin 9 (digit2 is  common A2)
int digit3 = 9; //PWM Display pin 8 (digit3 is common anods A3)
int digit4 = 6; //PWM Display pin 6 (digit4 is common anods, from left side)

//Pin mapping from Arduino to the ATmega DIP28 if you need it
//http://www.arduino.cc/en/Hacking/PinMapping
int segA = 2; //Display pin 11
int segB = 3; //Display pin 7
int segC = 4; //Display pin 4
int segD = 5; //Display pin 2
int segE = 12; //Display pin 1
int segF = 7; //Display pin 10
int segG = 8; //Display pin 5
int segDP = 13; // Display pin 3

#include <Wire.h>
#include "RTClib.h"
RTC_DS1307 RTC;

// Date and time functions using a DS1307 RTC connected via I2C and Wire lib
// original sketck from http://learn.adafruit.com/ds1307-real-time-clock-breakout-board-kit/
// add part with SQW=1Hz from http://tronixstuff.wordpress.com/2010/10/20/tutorial-arduino-and-the-i2c-bus/
// add part with manual adjust http://www.bristolwatch.com/arduino/arduino_ds1307.htm

byte SW0 = A0; byte SW1 = A1; byte SW2 = A2; // use for hexa in zecimal conversion int zh, uh, ore; int zm, um, miniti; void setup() {     // Serial.begin(57600);   Wire.begin();   RTC.begin(); // RTC.adjust(DateTime(__DATE__, __TIME__)); // if you need set clock... just remove // from line above this // part code for flashing LED Wire.beginTransmission(0x68); Wire.write(0x07); // move pointer to SQW address // Wire.write(0x00); // turns the SQW pin off  Wire.write(0x10); // sends 0x10 (hex) 00010000 (binary) to control register - turns on square wave at 1Hz // Wire.write(0x13); // sends 0x13 (hex) 00010011 (binary) 32kHz Wire.endTransmission();   if (! RTC.isrunning()) {     Serial.println("RTC is NOT running!");     // following line sets the RTC to the date & time this sketch was compiled     RTC.adjust(DateTime(__DATE__, __TIME__));   }       // dht.begin();   pinMode(segA, OUTPUT);   pinMode(segB, OUTPUT);   pinMode(segC, OUTPUT);   pinMode(segD, OUTPUT);   pinMode(segE, OUTPUT);   pinMode(segF, OUTPUT);   pinMode(segG, OUTPUT);   pinMode(segDP, OUTPUT);   pinMode(digit1, OUTPUT);   pinMode(digit2, OUTPUT);   pinMode(digit3, OUTPUT);   pinMode(digit4, OUTPUT);    //  pinMode(13, OUTPUT);  Serial.begin(9600);  Serial.println("test for niq_ro");  pinMode(SW0, INPUT); // for this use a slide switch   pinMode(SW1, INPUT); // N.O. push button switch   pinMode(SW2, INPUT); // N.O. push button switch   digitalWrite(SW0, HIGH); // pull-ups on   digitalWrite(SW1, HIGH);   digitalWrite(SW2, HIGH); } void loop() { digitalWrite(segDP, HIGH);   DateTime now = RTC.now();   int timp = now.hour()*100+now.minute(); //   int timp = (now.minute(), DEC); //   displayNumber(12); // this is number to diplay //   int timp = 1234;   Serial.print(now.hour(), DEC);   Serial.print(":");   Serial.print(now.minute(), DEC);   Serial.print(" -> ");   Serial.print(timp);   Serial.println(" !"); // display parts       for(int i = 250 ; i >0 ; i--) {      if (timp >= 1000) displayNumber01(timp);      else displayNumber02(timp);    }     for(int i = 250 ; i >0 ; i--) {      if (timp >= 1000) displayNumber03(timp);      else displayNumber04(timp);    }    if (!(digitalRead(SW0))) set_time(); // hold the switch to set timevoid set_time() {   byte minutes1 = 0;   byte hours1 = 0;   byte minutes = 0;   byte hours = 0;   while (!digitalRead(SW0)) // set time switch must be released to exit   {     minutes1=minutes;     hours1=hours;                while (!digitalRead(SW1)) // set minutes     {       minutes++;      // converting hexa in zecimal:     zh = hours / 16;     uh = hours - 16 * zh ;     ore = 10 * zh + uh;      zm = minutes / 16;     um = minutes - 16 * zm ;     miniti = 10 * zm + um;            for(int i = 20 ; i >0 ; i--) {      displayNumber01(ore*100+miniti);       }              if ((minutes & 0x0f) > 9) minutes = minutes + 6;       if (minutes > 0x59) minutes = 0;       Serial.print("Minutes = ");       if (minutes >= 9) Serial.print("0");       Serial.println(minutes, HEX);     delay(150);     }     while (!digitalRead(SW2)) // set hours     {       hours++;                    // converting hexa in zecimal:     zh = hours / 16;     uh = hours - 16 * zh ;     ore = 10 * zh + uh;      zm = minutes / 16;     um = minutes - 16 * zm ;     miniti = 10 * zm + um;            for(int i = 20 ; i >0 ; i--) {      displayNumber01(ore*100+miniti);       }                  if ((hours & 0x0f) > 9) hours = hours + 6;       if (hours > 0x23) hours = 0;       Serial.print("Hours = ");       if (hours <= 9) Serial.print("0");       Serial.println(hours, HEX);     delay(150);     }     Wire.beginTransmission(0x68); // activate DS1307     Wire.write(0); // where to begin     Wire.write(0x00); //seconds     Wire.write(minutes); //minutes     Wire.write(0x80 | hours); //hours (24hr time)     Wire.write(0x06); // Day 01-07     Wire.write(0x01); // Date 0-31     Wire.write(0x05); // month 0-12     Wire.write(0x09); // Year 00-99     Wire.write(0x10); // Control 0x10 produces a 1 HZ square wave on pin 7.     Wire.endTransmission();        // converting hexa in zecimal:     zh = hours / 16;     uh = hours - 16 * zh ;     ore = 10 * zh + uh;      zm = minutes / 16;     um = minutes - 16 * zm ;     miniti = 10 * zm + um;            for(int i = 20 ; i >0 ; i--) {      displayNumber01(ore*100+miniti);       }  // delay(150);        }    } void displayNumber01(int toDisplay) { #define DISPLAY_BRIGHTNESS  500 #define DIGIT_ON  HIGH #define DIGIT_OFF  LOW   for(int digit = 4 ; digit > 0 ; digit--) {     //Turn on a digit for a short amount of time     switch(digit) {     case 1:      digitalWrite(digit1, DIGIT_ON);      digitalWrite(segDP, HIGH);       break;    case 2:       digitalWrite(digit2, DIGIT_ON);       digitalWrite(segDP, LOW);       break;     case 3:       digitalWrite(digit3, DIGIT_ON);       digitalWrite(segDP, HIGH);       break;     case 4:       digitalWrite(digit4, DIGIT_ON);       digitalWrite(segDP, HIGH);       break;     }     lightNumber(toDisplay % 10);     toDisplay /= 10;     delayMicroseconds(DISPLAY_BRIGHTNESS);      //Turn off all segments     lightNumber(10);      //Turn off all digits     digitalWrite(digit1, DIGIT_OFF);     digitalWrite(digit2, DIGIT_OFF);     digitalWrite(digit3, DIGIT_OFF);     digitalWrite(digit4, DIGIT_OFF); } }  void displayNumber02(int toDisplay) { #define DISPLAY_BRIGHTNESS  500 #define DIGIT_ON  HIGH #define DIGIT_OFF  LOW   for(int digit = 4 ; digit > 0 ; digit--) {     //Turn on a digit for a short amount of time     switch(digit) {     case 1:      lightNumber(10);       digitalWrite(segDP, HIGH);      break;    case 2:       digitalWrite(digit2, DIGIT_ON);       digitalWrite(segDP, LOW);       break;     case 3:       digitalWrite(digit3, DIGIT_ON);       digitalWrite(segDP, HIGH);       break;     case 4:       digitalWrite(digit4, DIGIT_ON);       digitalWrite(segDP, HIGH);       break;     }     lightNumber(toDisplay % 10);     toDisplay /= 10;     delayMicroseconds(DISPLAY_BRIGHTNESS);      //Turn off all segments     lightNumber(10);      //Turn off all digits     digitalWrite(digit1, DIGIT_OFF);     digitalWrite(digit2, DIGIT_OFF);     digitalWrite(digit3, DIGIT_OFF);     digitalWrite(digit4, DIGIT_OFF); } }  void displayNumber03(int toDisplay) { #define DISPLAY_BRIGHTNESS  500 #define DIGIT_ON  HIGH #define DIGIT_OFF  LOW   for(int digit = 4 ; digit > 0 ; digit--) {     //Turn on a digit for a short amount of time     switch(digit) {     case 1:      digitalWrite(digit1, DIGIT_ON);      digitalWrite(segDP, HIGH);       break;    case 2:       digitalWrite(digit2, DIGIT_ON);       digitalWrite(segDP, HIGH);       break;     case 3:       digitalWrite(digit3, DIGIT_ON);       digitalWrite(segDP, HIGH);       break;     case 4:       digitalWrite(digit4, DIGIT_ON);       digitalWrite(segDP, HIGH);       break;     }     lightNumber(toDisplay % 10);     toDisplay /= 10;     delayMicroseconds(DISPLAY_BRIGHTNESS);      //Turn off all segments     lightNumber(10);      //Turn off all digits     digitalWrite(digit1, DIGIT_OFF);     digitalWrite(digit2, DIGIT_OFF);     digitalWrite(digit3, DIGIT_OFF);     digitalWrite(digit4, DIGIT_OFF); } }  void displayNumber04(int toDisplay) { #define DISPLAY_BRIGHTNESS  500 #define DIGIT_ON  HIGH #define DIGIT_OFF  LOW   for(int digit = 4 ; digit > 0 ; digit--) {     //Turn on a digit for a short amount of time     switch(digit) {     case 1:      lightNumber(10);       digitalWrite(segDP, HIGH);      break;    case 2:       digitalWrite(digit2, DIGIT_ON);       digitalWrite(segDP, HIGH);       break;     case 3:       digitalWrite(digit3, DIGIT_ON);       digitalWrite(segDP, HIGH);       break;     case 4:       digitalWrite(digit4, DIGIT_ON);       digitalWrite(segDP, HIGH);       break;     }     lightNumber(toDisplay % 10);     toDisplay /= 10;     delayMicroseconds(DISPLAY_BRIGHTNESS);      //Turn off all segments     lightNumber(10);      //Turn off all digits     digitalWrite(digit1, DIGIT_OFF);     digitalWrite(digit2, DIGIT_OFF);     digitalWrite(digit3, DIGIT_OFF);     digitalWrite(digit4, DIGIT_OFF); } }  //Given a number, turns on those segments //If number == 10, then turn off number void lightNumber(int numberToDisplay) { #define SEGMENT_ON  LOW #define SEGMENT_OFF HIGH   switch (numberToDisplay){   case 0:     digitalWrite(segA, SEGMENT_ON);     digitalWrite(segB, SEGMENT_ON);     digitalWrite(segC, SEGMENT_ON);     digitalWrite(segD, SEGMENT_ON);     digitalWrite(segE, SEGMENT_ON);     digitalWrite(segF, SEGMENT_ON);     digitalWrite(segG, SEGMENT_OFF);     break;   case 1:     digitalWrite(segA, SEGMENT_OFF);     digitalWrite(segB, SEGMENT_ON);     digitalWrite(segC, SEGMENT_ON);     digitalWrite(segD, SEGMENT_OFF);     digitalWrite(segE, SEGMENT_OFF);     digitalWrite(segF, SEGMENT_OFF);     digitalWrite(segG, SEGMENT_OFF);     break;   case 2:     digitalWrite(segA, SEGMENT_ON);     digitalWrite(segB, SEGMENT_ON);     digitalWrite(segC, SEGMENT_OFF);     digitalWrite(segD, SEGMENT_ON);     digitalWrite(segE, SEGMENT_ON);     digitalWrite(segF, SEGMENT_OFF);     digitalWrite(segG, SEGMENT_ON);     break;   case 3:     digitalWrite(segA, SEGMENT_ON);     digitalWrite(segB, SEGMENT_ON);     digitalWrite(segC, SEGMENT_ON);     digitalWrite(segD, SEGMENT_ON);     digitalWrite(segE, SEGMENT_OFF);     digitalWrite(segF, SEGMENT_OFF);     digitalWrite(segG, SEGMENT_ON);     break;   case 4:     digitalWrite(segA, SEGMENT_OFF);     digitalWrite(segB, SEGMENT_ON);     digitalWrite(segC, SEGMENT_ON);     digitalWrite(segD, SEGMENT_OFF);     digitalWrite(segE, SEGMENT_OFF);     digitalWrite(segF, SEGMENT_ON);     digitalWrite(segG, SEGMENT_ON);     break;   case 5:     digitalWrite(segA, SEGMENT_ON);     digitalWrite(segB, SEGMENT_OFF);     digitalWrite(segC, SEGMENT_ON);     digitalWrite(segD, SEGMENT_ON);     digitalWrite(segE, SEGMENT_OFF);     digitalWrite(segF, SEGMENT_ON);     digitalWrite(segG, SEGMENT_ON);     break;   case 6:     digitalWrite(segA, SEGMENT_ON);     digitalWrite(segB, SEGMENT_OFF);     digitalWrite(segC, SEGMENT_ON);     digitalWrite(segD, SEGMENT_ON);     digitalWrite(segE, SEGMENT_ON);     digitalWrite(segF, SEGMENT_ON);     digitalWrite(segG, SEGMENT_ON);     break;   case 7:     digitalWrite(segA, SEGMENT_ON);     digitalWrite(segB, SEGMENT_ON);     digitalWrite(segC, SEGMENT_ON);     digitalWrite(segD, SEGMENT_OFF);     digitalWrite(segE, SEGMENT_OFF);     digitalWrite(segF, SEGMENT_OFF);     digitalWrite(segG, SEGMENT_OFF);     break;   case 8:     digitalWrite(segA, SEGMENT_ON);     digitalWrite(segB, SEGMENT_ON);     digitalWrite(segC, SEGMENT_ON);     digitalWrite(segD, SEGMENT_ON);     digitalWrite(segE, SEGMENT_ON);     digitalWrite(segF, SEGMENT_ON);     digitalWrite(segG, SEGMENT_ON);     break;   case 9:     digitalWrite(segA, SEGMENT_ON);     digitalWrite(segB, SEGMENT_ON);     digitalWrite(segC, SEGMENT_ON);     digitalWrite(segD, SEGMENT_ON);     digitalWrite(segE, SEGMENT_OFF);     digitalWrite(segF, SEGMENT_ON);     digitalWrite(segG, SEGMENT_ON);     break;   // all segment are ON   case 10:     digitalWrite(segA, SEGMENT_OFF);     digitalWrite(segB, SEGMENT_OFF);     digitalWrite(segC, SEGMENT_OFF);     digitalWrite(segD, SEGMENT_OFF);     digitalWrite(segE, SEGMENT_OFF);     digitalWrite(segF, SEGMENT_OFF);     digitalWrite(segG, SEGMENT_OFF);     break;      } }
Note: Original article in roumanian language is Afisaje LED cu 7 segmente si.. Arduino (IV)!!!

11.10.2016
   I correct sketch for display 10:00 case..
07.02.2017
    Now, I pun on my Github channel sketch for cathode comon display, see github.com/tehniq3/multiplexedclock

86 comments:

  1. sketch why can not store a position to continue?
    reset back in position even when uploading code

    ReplyDelete
    Replies
    1. you must comment line:
      RTC.adjust(DateTime(__DATE__, __TIME__));
      // if you need set clock... just remove // from line above this
      ===>
      // RTC.adjust(DateTime(__DATE__, __TIME__));
      // if you need set clock... just remove // from line above this

      Delete
    2. ok, the code works great. Thank you.
      God bless you

      Delete
  2. how to driving a large 7 segment CA / 12volt ?

    ReplyDelete
  3. you must using pnp transistors for common anode and npn transistors for segments.. just use GOOGLE SEARCH

    ReplyDelete
    Replies
    1. not work perfect. must make ic hex converter. do you know this ic ?

      Delete
    2. 1) work good for me...
      2) if you use Arduino board you cand you cand upload sketh directly...
      3) if you want to put a hex in ATmega328P-PU at 16MHz, I cat put a hex file.. but I want to see first the article from http://www.jameco.com/Jameco/workshop/JamecoBuilds/arduinocircuit.html?CID=arduinobuild and after you read.. I wait you "review"

      Delete
    3. i made it, on breadboard with 0,36" 7 segment clock from your sketch. it's perfectly. i am publishing in youtube : https://youtu.be/IHLKxl0Hk0s

      Delete
    4. furthermore, I want to enlarge a digital clock with a 3 inch 7 segment, but not perfect or all segments lit all. became number 8 continues without following the digclock small (0.36 ")

      Delete
    5. how to upload photos on this blog?

      Delete
    6. you can't upload directlly photos in blog, but you have 2 ways:
      1) you put photo on free server like http://tinypic.com/ and than you put link in "replay",
      2) send me photos and if I like them, I put in article with your name in comment

      Delete
    7. http://tinypic.com/2mpmn505
      my first video . Can you solve the problem ?

      Delete
  4. how to maximal brightness ?

    void displayNumber01(int toDisplay) {
    #define DISPLAY_BRIGHTNESS 500

    #define DIGIT_ON HIGH
    #define DIGIT_OFF LOW

    for(int digit = 4 ; digit > 0 ; digit--) {

    //Turn on a digit for a short amount of time
    switch(digit) {
    case 1:
    digitalWrite(digit1, DIGIT_ON);
    digitalWrite(segDP, HIGH);
    break;
    case 2:
    digitalWrite(digit2, DIGIT_ON);
    digitalWrite(segDP, LOW);
    break;
    case 3:
    digitalWrite(digit3, DIGIT_ON);
    digitalWrite(segDP, HIGH);
    break;
    case 4:
    digitalWrite(digit4, DIGIT_ON);
    digitalWrite(segDP, HIGH);
    break;
    }
    lightNumber(toDisplay % 10);
    toDisplay /= 10;
    delayMicroseconds(DISPLAY_BRIGHTNESS);

    //Turn off all segments
    lightNumber(10);

    //Turn off all digits
    digitalWrite(digit1, DIGIT_OFF);
    digitalWrite(digit2, DIGIT_OFF);
    digitalWrite(digit3, DIGIT_OFF);
    digitalWrite(digit4, DIGIT_OFF);
    }
    }

    void displayNumber02(int toDisplay) {
    #define DISPLAY_BRIGHTNESS 500

    #define DIGIT_ON HIGH
    #define DIGIT_OFF LOW

    for(int digit = 4 ; digit > 0 ; digit--) {

    //Turn on a digit for a short amount of time
    switch(digit) {
    case 1:
    lightNumber(10);
    digitalWrite(segDP, HIGH);
    break;
    case 2:
    digitalWrite(digit2, DIGIT_ON);
    digitalWrite(segDP, LOW);
    break;
    case 3:
    digitalWrite(digit3, DIGIT_ON);
    digitalWrite(segDP, HIGH);
    break;
    case 4:
    digitalWrite(digit4, DIGIT_ON);
    digitalWrite(segDP, HIGH);
    break;
    }
    lightNumber(toDisplay % 10);
    toDisplay /= 10;
    delayMicroseconds(DISPLAY_BRIGHTNESS);

    //Turn off all segments
    lightNumber(10);

    //Turn off all digits
    digitalWrite(digit1, DIGIT_OFF);
    digitalWrite(digit2, DIGIT_OFF);
    digitalWrite(digit3, DIGIT_OFF);
    digitalWrite(digit4, DIGIT_OFF);
    }
    }

    where numbers need to be changed ?

    Thanks verymuch

    ReplyDelete
  5. my sketches are based on http://cdn.sparkfun.com/datasheets/Components/LED/_7Seg_Example.pde sketch and inside is text:
    "//Display brightness
    //Each digit is on for a certain amount of microseconds
    //Then it is off until we have reached a total of 20ms for the function call
    //Let's assume each digit is on for 1000us
    //If each digit is on for 1ms, there are 4 digits, so the display is off for 16ms.
    //That's a ratio of 1ms to 16ms or 6.25% on time (PWM).
    //Let's define a variable called brightness that varies from:
    //5000 blindingly bright (15.7mA current draw per digit)
    //2000 shockingly bright (11.4mA current draw per digit)
    //1000 pretty bright (5.9mA)
    //500 normal (3mA)
    //200 dim but readable (1.4mA)
    //50 dim but readable (0.56mA)
    //5 dim but readable (0.31mA)
    //1 dim but readable in dark (0.28mA) "
    for me and my Arduino board is ok 500 as maximum value for display brightness.. you can test bigger value...

    ReplyDelete
  6. ok, thank you very much.
    I try brightness of 5000, but no effect in all 7 segment. Second / dot lights up to 5 seconds, 5 seconds off.

    I want to try some of your tutorial. very nice

    ReplyDelete
  7. where this article ?

    // adapted sketch by niq_ro from http://arduinotehniq.blogspot.com
    // and http://nicuflorica.blogspot.ro
    // base version 1.0 in 6.11.2014, Craiova - Romanaia
    // actul version 3.0 in 22.05.2015
    // source for LEDControl: http://embedded-lab.com/blog/?p=6862
    #include "LedControl.h"
    /*
    Now we need a LedControl to work with.
    ***** These pin numbers will probably not work with your hardware *****
    pin 12 is connected to the DataIn
    pin 11 is connected to the CLK
    pin 10 is connected to LOAD
    We have only a single MAX72XX.
    */
    LedControl lc=LedControl(12,11,10,1);

    // Example testing sketch for various DHT humidity/temperature sensors
    // Written by ladyada, public domain
    #include "DHT.h"
    #define DHTPIN A1 // what pin we're connected to A1
    // Uncomment whatever type you're using!
    //#define DHTTYPE DHT11 // DHT 11
    #define DHTTYPE DHT22 // DHT 22 (AM2302)
    //#define DHTTYPE DHT21 // DHT 21 (AM2301)

    // if is just sensor:
    // Connect pin 1 (on the left) of the sensor to +5V
    // Connect pin 2 of the sensor to whatever your DHTPIN is
    // Connect pin 4 (on the right) of the sensor to GROUND
    // Connect a 10K resistor from pin 2 (data) to pin 1 (power) of the sensor

    DHT dht(DHTPIN, DHTTYPE);

    // declaration for type of value
    float t, h, t1;

    // Date and time functions using a DS1307 RTC connected via I2C and Wire lib
    // original sketck from http://learn.adafruit.com/ds1307-real-time-clock-breakout-board-kit/
    // add part with SQW=1Hz from http://tronixstuff.wordpress.com/2010/10/20/tutorial-arduino-and-the-i2c-bus/

    // Dawn & Dusk controller. http://andydoz.blogspot.ro/2014_08_01_archive.html
    // 16th August 2014 - (C) A.G.Doswell 2014

    #include
    #include "RTClib.h" // from https://github.com/adafruit/RTClib
    #include
    #include // from http://www.pjrc.com/teensy/td_libs_Encoder.html

    ReplyDelete
    Replies
    1. I don't understund your problem... I you have time, see alse base blog: http://nicuflorica.blogspot.ro/ ;)

      Delete
  8. How can I make this as 12 hour clock (not 24 as it is)

    ReplyDelete
  9. I not have all project libve, but you can see http://www.avrfreaks.net/forum/ds1307-enabling-12-hour-solved-working-code

    ReplyDelete
  10. Hi.

    I just tried to builde clock and I have problem. After wired and upload sketch to arduino I see on the display 66.65 with blinking dot for all the time.
    After presing S3 i see 00.00 and I can modyfi that value by pressing S1 and s2 buton, but after relice S3 display come back to 66.65.

    Do anyone have any ide what go wrong?

    THX in advance for any answer

    ReplyDelete
    Replies
    1. I think your RTC clock in not correct put at Arduino...

      Delete
  11. Arduino: 1.6.8 (Windows 10), Board: "Arduino/Genuino Uno"

    C:\Users\Krisna\Documents\Arduino\DIGITALCLOCK\DIGITALCLOCK.ino:27:20: fatal error: RTClib.h: No such file or directory

    #include "RTClib.h"

    ^

    compilation terminated.

    exit status 1
    Error compiling for board Arduino/Genuino Uno.

    This report would have more information with
    "Show verbose output during compilation"
    option enabled in File -> Preferences.


    ?????

    ReplyDelete
    Replies
    1. you haven't RTClib library... try to use google search.. see https://github.com/adafruit/RTClib

      Delete
  12. hello please am new to this Arduino can u please send me the full code of this clock for me to try it

    ReplyDelete
    Replies
    1. full sketch is in article, after text "My sketch is:"
      please test first to upload Blink example or some easy.. after that try some difficult like this...

      Delete
    2. Hi i have try it i won't to do the clock so i need the code please

      Delete
  13. I have try this adjustment code and it working i need the full code for the clock please

    ReplyDelete
    Replies
    1. works... must HOLD the switch SW0 to set time... and push SW1 for hours and SW2 to minutes.. see the movie...

      Delete
    2. everything is working but the code is only for adjustment and i need the full code for the clock and adjustment can you help me out please i will be very grateful

      Delete
  14. Replies
    1. in article is just a sketch.. one.. just one sketch...
      how many sketches you see?

      Delete
  15. one but is only for adjustment of the segment, and i ask if you have the full code of the clock there. i wont to make a digital clock so if you have the code or another schematic and code please help me out. thanks

    ReplyDelete
    Replies
    1. ufff... sketch is full, just try it...
      you try the sketch? you put 3 buttons? push and hold pushed SW0 and push short SW1 or SW2? TRY. TRY, TRY..
      please copy sketch what you see... I think you tell about other sketch than me...

      Delete
  16. whether it can be plus melody (tone) every 1 hour chime? 1 hour rang 1x, 2x reads 2 hours, 3 hours 12 hours reads 3x .... sounds 12x then back to 1

    ReplyDelete
    Replies
    1. yes, can be put.. now i haven't time for tests, but soon I will put a sketch witch with tone at every hours :)

      Delete
  17. hello, if i want make Manual adjust for RTC clock with Arduino and 7-segment LED display with shift register can you give sketch.....tanks before

    ReplyDelete
  18. Hai Nicu FLORICA,
    This is a nice project, but could you please to add the program that activate a relay if the time is already reach/set like an alarm ?

    Thank You

    ReplyDelete
  19. Nice tutorial..... Thank You,,,,
    Its Work.

    ReplyDelete
  20. 1) unable to set time using RTC
    2) if the time is [ 9:59 ] after 60 seconds it will be remaining as [ 0:00 ] and it

    doesn`t displaying the digit 1 in the first segment instead of
    displaying [ 10:00 ] and it displays only when the 00 shifted to 01 ,
    [ 10:01]
    can u help me plz

    ReplyDelete
    Replies
    1. 1) you pust push SW0 button and hold it.. on display mst see 00:00, after that push other buttons for hours and minutes.. it easy...
      2) In comment in original article from http://nicuflorica.blogspot.ro/2013/12/afisaje-led-cu-7-segmente-si-arduino-iv.html is same problem, but it easy to change... in sketch are 2 line who must change: if (timp > 1000) displayNumber01(timp); in if (timp >= 1000) displayNumber01(timp);
      & if (timp > 1000) displayNumber03(timp); in if (timp >= 1000) displayNumber03(timp); I forgot 10:00 hours :)))
      PS: I change sketch for display correct 10:00 hours

      Delete
  21. Hi help pls. how to fix this

    D:\Documents\Arduino\sketch_oct10a\sketch_oct10a.ino: In function 'void setup()':

    sketch_oct10a:57: error: 'class TwoWire' has no member named 'write'

    Wire.write(0x07); // move pointer to SQW address

    ^

    sketch_oct10a:58: error: 'class TwoWire' has no member named 'write'

    Wire.write(0x00); // turns the SQW pin off

    ^

    sketch_oct10a:59: error: 'class TwoWire' has no member named 'write'

    Wire.write(0x10); // sends 0x10 (hex) 00010000 (binary) to control register - turns on square wave at 1Hz

    ^

    sketch_oct10a:60: error: 'class TwoWire' has no member named 'write'

    Wire.write(0x13); // sends 0x13 (hex) 00010011 (binary) 32kHz

    ^

    D:\Documents\Arduino\sketch_oct10a\sketch_oct10a.ino: In function 'void set_time()':

    sketch_oct10a:195: error: 'class TwoWire' has no member named 'write'

    Wire.write(0); // where to begin

    ^

    sketch_oct10a:196: error: 'class TwoWire' has no member named 'write'

    Wire.write(0x00); //seconds

    ^

    sketch_oct10a:197: error: 'class TwoWire' has no member named 'write'

    Wire.write(minutes); //minutes

    ^

    sketch_oct10a:198: error: 'class TwoWire' has no member named 'write'

    Wire.write(0x80 | hours); //hours (24hr time)

    ^

    sketch_oct10a:199: error: 'class TwoWire' has no member named 'write'

    Wire.write(0x06); // Day 01-07

    ^

    sketch_oct10a:200: error: 'class TwoWire' has no member named 'write'

    Wire.write(0x01); // Date 0-31

    ^

    sketch_oct10a:201: error: 'class TwoWire' has no member named 'write'

    Wire.write(0x05); // month 0-12

    ^

    sketch_oct10a:202: error: 'class TwoWire' has no member named 'write'

    Wire.write(0x09); // Year 00-99

    ^

    sketch_oct10a:203: error: 'class TwoWire' has no member named 'write'

    Wire.write(0x10); // Control 0x10 produces a 1 HZ square wave on pin 7.

    ^

    Multiple libraries were found for "Wire.h"
    Used: D:\Documents\Arduino\libraries\Wire
    Not used: D:\Desktop\arduino-1.6.8\hardware\arduino\avr\libraries\Wire
    exit status 1
    'class TwoWire' has no member named 'write'

    ReplyDelete
  22. you have more libraries with Wire.h... move TwoWire librarie from Libraries directory

    ReplyDelete
  23. Thank you for your help.It is one of my college project and the correction you had made in this code helps me a lot for the completion. And this is my first arduino project experience in my life. :))

    ReplyDelete
  24. Replies
    1. you can use or Arduino Pro Mini board or an ATmega328P-PU microcontroller, like in article http://nicuflorica.blogspot.ro/2014/02/transferarea-unui-proiect-arduino-pe-un.html

      Delete
  25. This comment has been removed by the author.

    ReplyDelete
  26. Hi.
    If anyone have any idea how can i do this - I want to make 3 clock that control in one controller, control buttons and 3 clock.

    ReplyDelete
    Replies
    1. you can try with 3 pcs 74hc541 for anode and 3 pcs 74hc541 for cathode. but it will need a lot of cables

      Delete
  27. Its work, I use RTC 3231 and catoda segment. Thank you...

    ReplyDelete
  28. hellow Nicu FLORICA will you plz tell me how to change 24 hrs in 12 hrs format in your code

    ReplyDelete
    Replies
    1. Hi, I haven't time to remade the clock, but I find a interesting Github material, see https://github.com/jarzebski/Arduino-DS1307

      Delete
  29. Arduino: 1.6.12 (Windows 8.1), Board: "Arduino/Genuino Uno"

    C:\Users\Maulana\Documents\Arduino\jam_sip\jam_sip.ino: In function 'void setup()':

    jam_sip:44: error: request for member 'isrunning' in 'RTC', which is of non-class type 'float'

    Serial.print(! RTC.isrunning); {

    ^

    jam_sip:47: error: request for member 'adjust' in 'RTC', which is of non-class type 'float'

    RTC.adjust(DateTime(__DATE__, __TIME__));

    ^

    jam_sip:47: error: 'DateTime' was not declared in this scope

    RTC.adjust(DateTime(__DATE__, __TIME__));

    ^

    C:\Users\Maulana\Documents\Arduino\jam_sip\jam_sip.ino: In function 'void loop()':

    jam_sip:86: error: 'DateTime' was not declared in this scope

    DateTime now = RTC.now();

    ^

    jam_sip:87: error: 'now' was not declared in this scope

    int timp = now.hour()*100+now.minute();

    ^

    exit status 1
    request for member 'isrunning' in 'RTC', which is of non-class type 'float'

    This report would have more information with
    "Show verbose output during compilation"
    option enabled in File -> Preferences.


    ?????

    ReplyDelete
  30. if you have RTClib, try an old version on Arduino IDE 1.0.3..1.0.5... this version just download and work as portablw software and not distroy new version (1.6.12 in your case)

    ReplyDelete
  31. Sir, please provide the full code for common cathode display. Thanks

    ReplyDelete
  32. Sir please provide common cathode display code

    ReplyDelete
    Replies
    1. is simmilar as at commn anode, just must have
      #define DIGIT_ON LOW
      #define DIGIT_OFF HIGH
      and

      #define SEGMENT_ON HIGH
      #define SEGMENT_OFF LOW

      Delete
    2. Sir, it's not working properly. When i try to adjust time, it's crush. Sir pls remodify it and upload the full code for common cathode. Thanks

      Delete
    3. I can't made real experiment,but I will put a sketch.. soon

      Delete
    4. try sketch: https://github.com/tehniq3/multiplexedclock/blob/master/cc_multiplexedclock1.in0

      Delete
  33. sir can you give schematic for arduino uno r3 please ??

    ReplyDelete
    Replies
    1. see http://1.bp.blogspot.com/-imfotIsGHOg/Uq7eGuSoYqI/AAAAAAAAKoY/mN8CINRfFb8/s1600/RTC_arduino_4_digit_7_segment_display_manual_adjust_schematic.png

      Delete
    2. schematic is ok for all Arduino Uno, Nano, Micro Pro, etc

      Delete
  34. I made it successfully. Sir please add temperature and humidity with it. I'm just waiting for it.
    Thanks

    ReplyDelete
    Replies
    1. look in simple sketch and change in sketch you want to use, like in https://github.com/tehniq3/multiplexedclock/blob/master/cc_multiplexedclock1.in0

      Delete
    2. change all line
      #define SEGMENT_ON LOW
      #define SEGMENT_OFF HIGH
      with
      #define SEGMENT_ON HIGH
      #define SEGMENT_OFF LOW
      and
      #define DIGIT_ON HIGH
      #define DIGIT_OFF LOW
      with
      #define DIGIT_ON LOW
      #define DIGIT_OFF HIGH

      Delete
  35. Sir, is it possible to show 00.00 replace 0.00? Like 8.15=08.15, 9.30=09.30

    ReplyDelete
    Replies
    1. yes... original lines 118-128 are

      // display parts
      for(int i = 250 ; i >0 ; i--) {
      if (timp >= 1000) displayNumber01(timp);
      else displayNumber02(timp);
      }

      for(int i = 250 ; i >0 ; i--) {
      if (timp >= 1000) displayNumber03(timp);
      else displayNumber04(timp);
      }

      but must change in

      // display parts
      for(int i = 250 ; i >0 ; i--) {
      // if (timp >= 1000) displayNumber01(timp);
      // else displayNumber02(timp);
      displayNumber01(timp);
      }

      for(int i = 250 ; i >0 ; i--) {
      // if (timp >= 1000) displayNumber03(timp);
      // else displayNumber04(timp);
      displayNumber03(timp);
      }

      try ;)

      Delete
    2. Thank you so much sir. It's work like a charm.

      Delete
  36. how to change 24 hours to 12 hours time...please help me

    ReplyDelete
    Replies
    1. RTClib library work just wotj 24 hour format, see https://arduino-info.wikispaces.com/DS1307_RealTime_Clock_Brick
      but you can add extra line after that:
      int timp = now.hour()*100+now.minute();
      extra line:
      if (now.hour() > 12) timp = timp - 1200;

      Delete
  37. Hi mr.nicu You could reach the clock circle on 7segment 2.3 inch

    ReplyDelete
    Replies
    1. Can you be more explicit what you want?

      Delete
    2. 7seg(2.3inch 12v

      I run the clock circuit on a larger scale but after the execution of the circuit actually appeared to me some problems are

      1-Poor lighting
      2-I want PCB design

      Delete
    3. I need to know the name of display for study the datasheet...

      Delete
    4. 7segment (css-2314g 9004n)

      http://optoeleshop.com/images/pdf/CSS-2314D-21.pdf

      Delete
  38. Replies
    1. must put pnp transistor for each anode and & npn transistor for each segment... it ieasy... but now, I can't help you because II'm very busy...

      Delete
    2. see https://electronics.stackexchange.com/questions/159883/led-with-a-transistor-on-each-side

      Delete
    3. https://i.stack.imgur.com/pGNRF.png

      Delete