Lesson 99: Building Arduino Digital Clock using DS3231 LCD and Seven Segment Display

This is ultimate lesson to use DS3231 Real-Time RTC clock module to build clock using Arduino. Either LCD clock or LED clock. All code and library is provided, explained with wiring diagram and setup.

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Download Arduino code for this video:

Use Chapters from timeline or click on the time
00:00 Introduction
04:11 DS3231 Datasheet
05:07 DS3231 Wiring
06:38 Simple DS3231 Clock code and library
10:05 DS3231 Code using Alarm
14:07 Running DS3231 Clock code demonstration
17:49 Alarm Buzzer and LED wiring for DS3231, code and demo
22:21 LCD Clock using DS3231
23:57 LCD Clock Code for Arduino
28:43 Building Unlimited Alarm using DS3231 clock module
29:38 Unlimited alarm wiring diagram
31:29 DS3231 using Alarm with relay and AC bulb wiring
31:59 DS3231 Unlimited Alarm Arduino code
34:38 Demonstration of Unlimited Alarm with reset push button
35:40 LED Clock using DS3231 and HT16K33
38:45 LED Clock code explained
50:38 LED Clock Demonstration and settings

Tutorial by Ahmad Shamshiri form Canada
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Power Supply I use:

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[proje]

It's been a good lesson. Detailed. Thanks. I will follow you. 👍🙂

[tatavox]

Good Job ! It would be interesting if you could do a project with STM32F1, which has embedded RTC and would greatly simplify the connections.Thank you for sharing your experience with us!

[nakulagham]

Thanks a lot for this detailed explanation, amazing content 😊

[henrichobzut]

I have a library from you - LCD Clock using DS3231 and I am very happy and thank you, but I have one problem with setting the clock update on the display, because after disconnecting the power, the display shows the time when I disconnected the source. I tried to find the libraries to update via SQW, but they don't work with your clock settings. Well thank you

[miladshahbazi]

سلام جناب شمشیری . خوشحالم با کانال شما اشنا شدم . امیدوارم موفق و پیروز باشید .

[goodboyml]

thank you for the information<3 it's solve my problem<3

[henrichobzut]

Sorry, I forgot to ask if you could help me with this - I have a library from you - LCD Clock using DS3231 and I am very happy and thank you, but I have one problem with setting the clock update on the display, because after disconnecting the power, the display shows the time when I disconnected the source. I tried to find the libraries to update via SQW, but they don't work with your clock settings. Well thank you

[aaamarco]

Buongiorno
c'è la possibilità di fare aggiornare l'ora con il modulo Dcf 77 Modulo Ricevitore Orario Radiocontrollato Radio Arduino?
se possibile, come?
grazie

[gn]

Please start doing lessons using a proper IDE - Atmel Studio / Microchip Studio. Arduino is for hobbyists only.

[quickfixengineeringltd]

Good day sir.

I am a subscriber. I really appreciate your works.

In your code linked to this video for unlimited alarms, you uploaded the sketch for lcd in error. Could you give me a link for the unlimited alarm sketch I'll really be grateful

[applescy]

Isn’t it dangerous to use a non rechargeable battery ?

[mohammadmikailansari]

Please share the code for 6 digits LED clock

[pHuYaTz]

hi where can i download library of ds3231, error: no matching function for call to 'DS3231::DS3231()'

DS3231 clock; error, i only use sample that came on jabzebski/ adruino-ds3231