Arduino and Max7219 LED MATRIX Clock with RTC DS1307 

At your link most of the library's are missing and folders empty.

it apperanly looks good and working also, but there is significant time difference after few days , weeks and months. in long run this is not going to work practically..any idea how consultant time can be shown without any change in time

Very lengthy video without reason. You could show the same construction in 5 minutes instead of 20. Too boring.

hi, work great, but it loosing time, about 30-40 second a day, wonder what happen , please help.. thx

hello will you have a program to display the time on 8 matrix led with the ds3231

Downloaded the libraries and the max7219_clock_Succesd folders.Where do we put both if them?Please let me know..

How to do this project with "rtc 8563" I can not, congratulations for the work!

SAME ORIENTATION PROBLEM THE TIME IS NOT UNDERSTABLE WORNLY ORGANISED

can you please tell the hardware of pushbuttons switch

Although are mentioned in the sketch, you never show in this video neither the diagram the switches to set up the time, could you update your diagram please?

Saran aja bg.. Gausah di pakek in musik. Di jelasin aja coding sama rangkaian nya nya biar yang nonton lebih di pahami bg

BUTTON_PULLUP was not declare in scope. Any one can help?

Thanks for the project. But I have one doubt. Can we make a Digital clock using only Arduino UNO and LED matrix only i.e. without RTC? Please help anyone.

No way to upload files to another location?

Please give me a link, the link at the top is not working.

Hello, I had a problem in "max7219_clock_Success": an error message appears when I check or compile, "exit status 1 Error compiling for board Arduino/Genuino Uno." Thank you in advance for helping me

I need to display temperature on sotmatrix how can 8 do that please help ..

Arduino: 1.8.10 (Windows 10), Board: "Arduino Uno" In file included from C:\Users\DELL\Documents\Arduino\Mini_LED_Matrix_Clock_nano_using\Mini_LED_Matrix_Clock_nano_using.ino:15:0: C:\Users\DELL\Documents\Arduino\libraries\FontLEDClock/FontLEDClock.h:4:35: error: variable 'myfont' must be const in order to be put into read-only section by means of '__attribute__((progmem))' unsigned char PROGMEM myfont[80][5] = { ^ C:\Users\DELL\Documents\Arduino\libraries\FontLEDClock/FontLEDClock.h:94:39: error: variable 'mybigfont' must be const in order to be put into read-only section by means of '__attribute__((progmem))' unsigned char PROGMEM mybigfont[10][20] = { ^ C:\Users\DELL\Documents\Arduino\libraries\FontLEDClock/FontLEDClock.h:108:38: error: variable 'mytinyfont' must be const in order to be put into read-only section by means of '__attribute__((progmem))' unsigned int PROGMEM mytinyfont[42][3] = { ^ C:\Users\DELL\Documents\Arduino\Mini_LED_Matrix_Clock_nano_using\Mini_LED_Matrix_Clock_nano_using.ino: In function 'void get_time()': Mini_LED_Matrix_Clock_nano_using:1570:16: error: 'class DateTime' has no member named 'dayOfWeek'; did you mean 'dayOfTheWeek'? rtc[3] = now.dayOfWeek(); //returns 0-6 where 0 = Sunday ^~~~~~~~~ dayOfTheWeek Multiple libraries were found for "LedControl.h" Used: C:\Users\DELL\Documents\Arduino\libraries\LedControl Multiple libraries were found for "FontLEDClock.h" Used: C:\Users\DELL\Documents\Arduino\libraries\FontLEDClock Multiple libraries were found for "Wire.h" Used: C:\Users\DELL\AppData\Local\Arduino15\packages\arduino\hardware\avr\1.8.2\libraries\Wire Multiple libraries were found for "RTClib.h" Used: C:\Users\DELL\Documents\Arduino\libraries\RTClib-master Multiple libraries were found for "Button.h" Used: C:\Users\DELL\Documents\Arduino\libraries\Button exit status 1 'class DateTime' has no member named 'dayOfWeek'; did you mean 'dayOfTheWeek'? downloads.arduino.cc/libraries/library_index.json.sig file signature verification failed. File ignored. Invalid library found in C:\Users\DELL\Documents\Arduino\libraries\Arduino-LiquidCrystal-I2C-library-master: no headers files (.h) found in C:\Users\DELL\Documents\Arduino\libraries\Arduino-LiquidCrystal-I2C-library-master Invalid library found in C:\Users\DELL\Documents\Arduino\libraries\Arduino-LiquidCrystal-I2C-library-master: no headers files (.h) found in C:\Users\DELL\Documents\Arduino\libraries\Arduino-LiquidCrystal-I2C-library-master Invalid library found in C:\Users\DELL\Documents\Arduino\libraries\Arduino-LiquidCrystal-I2C-library-master: no headers files (.h) found in C:\Users\DELL\Documents\Arduino\libraries\Arduino-LiquidCrystal-I2C-library-master Invalid library found in C:\Users\DELL\Documents\Arduino\libraries\Arduino-LiquidCrystal-I2C-library-master: no headers files (.h) found in C:\Users\DELL\Documents\Arduino\libraries\Arduino-LiquidCrystal-I2C-library-master Invalid library found in C:\Users\DELL\Documents\Arduino\libraries\Arduino-LiquidCrystal-I2C-library-master: no headers files (.h) found in C:\Users\DELL\Documents\Arduino\libraries\Arduino-LiquidCrystal-I2C-library-master Invalid library found in C:\Users\DELL\Documents\Arduino\libraries\Arduino-LiquidCrystal-I2C-library-master: no headers files (.h) found in C:\Users\DELL\Documents\Arduino\libraries\Arduino-LiquidCrystal-I2C-library-master Invalid library found in C:\Users\DELL\Documents\Arduino\libraries\Arduino-LiquidCrystal-I2C-library-master: no headers files (.h) found in C:\Users\DELL\Documents\Arduino\libraries\Arduino-LiquidCrystal-I2C-library-master This report would have more information with "Show verbose output during compilation" option enabled in File -> Preferences. hello, sir these problems I face what is the solution to this.

Plz make it with ds3231

can ii use nano board

This is a copy of Niks mini clock that has software problems and dont work

klo extrak angka jam dari waktu rtc gimana caranya ? spy display menyala hanya pada siang hari

BUTTON_PULLUP was not declare in scope. I am new in this field Please help

How yo set clock?

Media is on fire

Not push button clock

This code dont Works for me !

Vut vahdt?

File download nhi ho rha hai

Code please

Sir there is an error in downloading the sketch

i'm not gonna pay $90 to download the libraries from the mediafire!!!

can i get the arduino source code of this project?

complie error FontLEDClock.h