Multi Mode Digital Clock 

Thanks for your comment, enjoy your clock. Jörg

Thank you

you can add two alarm if you are using ds3231 , simply make an alarm function then add it to the void loop

Yes, two buttons. Take a look at arduino.joergeli.de/digiclock/digiclock.php, there you can see the circuit-plan.

I'm glad that it works.

Gaurav Shrivastava It's possible, but I would not do that, because you have to change a lot of the code.

Please look in the comments here from Eudacio Silva and/or The Hoss.

Hello, thank you Jörg Baumann and Eudèco Silva for sharing your information.

Victor M. Estefano Defrias Hi Victor, I think it's possible to use the DHT22, because it uses only one pin at the arduino. Of course you have to alter my sketch in the section "char measure_Temp()". For example, a sketch for the DHT22 you can find at: fluuux.de/2012/10/arduino-temperatur-und-luftfeuchtigkeit-mit-dem-dht22-prufen/

@Ady Sos Hi, unfortunaly I don't have his sketch. But surely you can find similar sketches on the internet. Simply search for "arduino DHT22". Jörg

@@jorgbaumann7123 this site does not exists

@@GSDHANI That was not my site, it was only an example, how to read the DHT22 with Arduino. There are lots of other DHT22 example sites on the net, use a search engine.

Hi, please look at the comment from "The Hoss". He had also a problem, but with 180 degrees rotated chars He fixed it -> look at his modification-code. Perhaps it also helps with your 90 degrees problem? Jörg

@@jorgbaumann7123 Thanks for answering me. I made the suggestions of "The Hoss" and did not solve my problem. I also looked at various suggestions from others on the blog and also did not solve. I would like to send a photo of the display, to see if you could help me. My email is eudeciogs@hotmail.com. Thank you.

I solved the display problem. I changed the display order to 3.2,1,0 and changed the line lc.setLed (address, 7-y, x, true). Normalized, I will now see why the temperature is wrong is undercutting -127 ° C. I use the DS3231.

@@eudeciosilvaOficial Hi, glad to hear, that you solved it. Problem occured, because there are different types of MAX72xxx-modules on the market. When DS18B20 shows -127 degrees, will mean, there is a problem with the connection to sensor. Please check your wiring to the sensor. Jörg

I forgot to mention that I do not have the DS18B20 sensor, I'm only using the DS3231. I will study your program to change the temperature for this sensor, Eudecio.

You probably are using other Matrix-Modules than mine. Please read the comments here, where other users have similar problems ( rotated 90 degrees, rotated 180 degrees, etc.) Perhaps the answer (and code) from The Hoss (2 years ago) can solve your problem?

You are welcome

90 degrees to 180 pls

Bosna Hercegovina Sorry, but there is no shop where you can by the clock. You can only do it yourself, if you are familar with Arduino. Take a look at my (german) Homepage, there is a description: arduino.joergeli.de/digiclock/digiclock.php

Approx price rates

In Germany we have daylight saving time at the moment, which means 1 hour is added. If in your country there is no DST, remove the DST-code from the sketch.

@@jorgbaumann7123 Hi, I'm from Spain. It should work. Can you tell me which line I have to modify?

@@pascualpalacios7099 It's long ago, since I made the sketch ;-) So I'm not shure, if this simple workaround works: Replace all! the code from line 2415 to 2424: // European Daylight Savings Time calculation by "jurs" for German Arduino Forum // input parameters: "normal time" for year, month, day, hour and tzHours (0=UTC, 1=MEZ) // return value: returns true during Daylight Saving Time, false otherwise { if (month10) return false; // keine Sommerzeit in Jan, Feb, Nov, Dez if (month>3 && month=(1 + tzHours + 24*(31 - (5 * year /4 + 4) % 7)) || month==10 && (hour + 24 * day)

Hello, I have the same problem +1 HOUR...Did you resolve it?. How?..Thank you

Hi, perhaps this problem occurs, because there are different matrix-modules available at the market? In Nick's blog there is a notice about this: This is most likely because you don’t have the exact matrix modules from IC Station. Other modules from eBay can be wired up differently, so the LED’s are in a different order. You can usually fix things by tinkering with the function “plot” in the code. Look for the comment “plot a point on the display” and the line starting “void plot”. Switch the x and y in the 2 lines that start ” lc.setLed(address, y, x, true ); and lc.setLed(address, y, x, false);”. This will plot the pixels 90 degrees around.

Jörg Baumann I make it work by just removing a line from plot, i have translated most of moth and days but 8 cant translate the word clock can you have eng version of code

Soumojit Ash I'm sorry, I have no english version of the word-clock-mode, but I think, it's not so different to translate it in the sketch. There are only some "words" in the code: F-NF = five, ZEHN = ten, VIERTEL = a quarter, VOR = before, NACH = past, HALB = half.

Jörg Baumann I will try to translate

@@soumojitash3972 Dear bro. I have same problem of 90° rotation. Can you tell me which line should be remove to correct it?

Hi, seems, you are using other matrixes than mine. Take a look at 123led.wordpress.com/mini-led-clock/ The problem of vertical/horizontal is addresed in the comments.

Hi, do you really have included the button-library: #include ? Attention: Case-Sensitive : button.h is not Button.h !

I had already installed Button by Adams Michael. Okay? I wait for an answer thanks.

@@federicoferrara125 Hmmm..., no one reported this problem before. Perhaps it is because I use a button-library by Alexander Brevig (as added on my website)? If you have not made any modifications to the sketch, unfortunal I have no further ideas, why it's not compiling well. Sorry Jörg

@@jorgbaumann7123 Now I delete the other Button libraries and insert the Alexander Breving one, in fact I ask you to send me the link to this library. Thanks, bye

@@federicoferrara125 Does the sketch compile now? You can either download the button-library from the bottom of my web-page : arduino.joergeli.de/digiclock/digiclock.php ---> Button.zip or from github.com/t3db0t/Button

Sorry, das mit "max is 8 displays" ist noch ein Überbleibsel aus meiner Testphase. Somit nur 4 Displays, oder "works as designed" ;-)

Hi, I do not know, what's going wrong, because many other had build this clock, without getting any errors while compiling the sketch. Perhaps it depends of the Arduino-IDE, you are using. I compiled it with Arduino-IDE V 1.6.7. Perhaps you did not download all the necessary libraries (Wire.zip, Rtclib.zip, etc.) and put them in the right folder?

@@jorgbaumann7123 Thanks bro. Finally I can make it. You are right when I use Arduino 1.6.5 it show no errors. But it is showing vertically. I can not make it 90° rotation by changing in Plot. I have seen your comments how to change in Plot.

@@azizulhaque7867 Hi, look at the comments from Eudecio Silva, he had also a 90degree rotation problem. He described his solution to fix it in his comments. Perhaps this will also help you? Jörg

I know I'm quite off topic but do anybody know of a good site to stream new movies online ?

@Drew Izaiah I would suggest FlixZone. Just search on google for it =)

Because you use other modules than mine. Take a look at the other comments, where rotation problems (90degrees, 180 degrees, etc.) has been solved.

Did you include Library from Alexander Brevig ? Attention: Case Sensitive Do you have those 2 lines in the code (also Case Sensitive): Button buttonA = Button(2, BUTTON_PULLUP); Button buttonB = Button(3, BUTTON_PULLUP);

What errors? Please describe errors, which occurs while compiling.

big thanks it help me out in my display since i am using fc16

@@marlonragusta3645 👍

Hallo Hoss, ja, es gibt einige, die die Uhr nachgebaut haben, sogar aus Indien und Vietnam :-) Manchmal gab es ebenfalls Probleme mit der Darstellung. Abhängig von den verwendeten Segmenten war die Darstellung mal um 90 Grad, mal um 180 Grad gedreht, oder sogar spiegelverkehrt. Meistens konnten wir es über eine Anpassung des Sketches lösen, aber Du hast ja bereits selbst eine Lösung gefunden. Gruß Jörg

Of course you can use the code, therefore Inuploaded it😊 If you probably get trouble with the direction of the numbers (upside down, rotated 90 degree, etc.), look in the comments here, other guys have posted solutions for that. It's because of the different LED-Modules, that are available. Have fun Jörg

@@jorgbaumann7123 First of all, thank you very much for your response🙏..., I will try it and am currently still waiting for the arrival of the temperature sensor order😁 May you always be healthy and successful 🙏🙏🙏

​@@jorgbaumann7123 I have implemented the program code and it is successful, and I have also made a video which I have also uploaded on RU-vid😁🙏 ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-VqxAX1NNawo.htmlsi=5SN71bc-4CYDjpEL Once again, thank you very much for everything🙏 May you always be healthy and successful 🙏🙏🙏

Hi, what do you mean? German "Woche" is "Week" and the number is the the week-number in the year - for example: on January, 3rd, we have week 01.

@@jorgbaumann7123 First thanks to replaying sir.problem is clock show always sunday not to change next day hi always steel Sunday.and week number change in week 4th day.

@@hemantmundhe6662 Hi, First you can try to turn "debug" on (1). Then you can see the output in the Arduino serial console. Have a look at "wochentag" and "Tag" x "in Woche" ( day in week). Second: check, if you also translated char monthnames [12] [4] in subroutine void display_date ate () correct. If that doen't help at all, load my original (german) sketch once again and check, if there day and week are displayed correct. If so, something must be wrong with your translation to english. Unfortunal I have no further ideas. Greetings Jörg

@@jorgbaumann7123 Thanks Aegean for replay.I will try to your original program and accurately change the language.thanks ones again sir.

@@jorgbaumann7123 All done changes and language.clock work very well.thanks for supporting.

What do you mean? Are there compiling-errors? Have you downloaded the libraries from the bottom of my site and extracted them to the libraries-folder in your arduino-ide? A little more explanation of your problem would be helpfull for me as well for others, who probably would like to help.

??? What and where are errors?

@@jorgbaumann7123 fontDigiClock.h: No such file or directory SIR CAN YOU SEN ME HEX CODE SO I CAN UPLOAD AND TEST

@@electronicsideas1361 At the end of my German WebPage ( arduino.joergeli.de/digiclock/digiclock.php ) are all necessary files (sketch, libraries, etc.) included for download. Also fontDigiClock.h is included in fontDigiClock.zip. This fontfile contains special characters for German language. In the zip-file there is also a font-file called fontDigiClock_orig.h which contains English caracters. If you want to use the English fonts, you have to rename the file fontDigiClock_orig.h to fontDigiClock.h (case sensitive!). This file you have to save in your sketch-folder, beneath the digi_clock.ino. The third file in the zip-file zahl_0.txt is only an example for zero-character with/without a dash and you don't need it for the sketch. The other zip-files on my page are containing the necessary libraries, which you also have to extract and save them in your Ardino libraries-folder!

@@jorgbaumann7123 THANXS I TRY AND REPLY