Led Matrix Clock using ESP32 NTP without RTC IC

[@jackp2088]

Thank you. I did this project in minutes and now the clock is running ok in my bedroom. Make sure you placed all the library files in the right place before compiling/uploading the code. It's better to adjust the brightness using the code: P.intensity(0); for the brightness; because the LED will be too bright for our eyes.

[@StechiezDIY]

Excellent!

[@mulroy5542]

bravo everything is clear and precise it works wonderfully hello from france

[@jagannathkulkarni]

hi, may I know, how many times this clock connects with the NTP server each day ?

[@welon68]

Is it possible to add an external button to change the time zone (e.g. + 3600sec) Without it, you have to correct the code every six months.

[@mulroy5542]

In France, we changed time and switched to winter time for that I have to reprogram my ESPIs there a way to automatically switchthank you for your reply

[@mohitparikh4455]

can I use NodeMCU in place of ESP32 ? What changes are required with code ?

[@MARGCO-d7m]

YOU CAN!

[@akiztaecho7514]

me too.. i have nodemcu.. do you have the code and scheme?

[@j.van_heck4394]

Thanks. Looks very nice

[@perfectheatingandplumbingp7747]

Cool project but why do the minutes up date at 59 seconds and not at 00

[@jromhek2070]

Hello , did you find a solution ? Thanks

[@rene_richter]

@@jromhek2070 I've changed this from line number 41 void getsec(char* psz) { s =s + 1; if (s == 60) { s = 0; } sprintf(psz, "%02d", s); } and it works well 👍

[@derekhawley9660]

Great ... super simple and worked first time, thanks. UK winter ... timezoneinSeconds = 0;

[@robertofkennedy]

What Wifi.h Library are you using

[@DeepakCG]

pls someone help me with the code to change time from 24 to 12 hours

[@rohitmobilecare7691]

How to set time format

[@MARGCO-d7m]

HOW TO CHANGE FONT SIZE? YOUR LED SCREEN CAPTURING 3 MORE LINES(VERTICALLY) THAN MY LED

[@B.R.Garden]

Same here, all font size is same as the seconds size displayed in the thumbnail.

[@CATips]

Can i get code?

[@elekoeleko4832]

Работи. Само трябва да се внимава да се запишат правилно, wi-fi адреса и паролата. На мен един интервал между буквите ми създаде много главоболия. И chatGPT неможа да ми помогне. :)

[@random_idRI]

Whay not work my led matrix🙏

[@ศักดิ์สกุลไทยสวัสดิ์]

error line no.79 WiFi.mode(WIFI_STA); Compilation error: 'class WiFiClass' has no member named 'mode' please thank you

[@StechiezDIY]

Yeah, libraries are keep on changing, but if you try with older libraries it might work.

[@astitvakashyap5551]

I am unable to download fonts library

[@StechiezDIY]

its all there on the git

[@drum520]

good job!

[@LeeCooperification]

small tip: P.setIntensity (0); for the brightness (insert in line 92)

[@bintangdemarta9952]

Thank you for your help sir👍

[@seancastro2416]

nice

[@cicerosantana4085]

Como posso fazer para acertar a hora para o fuso horario de São Paulo - Brasil. Boa Noite!

[@leleo_das_galaxias]

-10800

[@柠檬-k3b]

3*60*60＝10800

[@electronicsdiy7340]

Awesome 😃

[@StechiezDIY]

Thanks 🤗

[@miguelvaldivia6817]

it work well

[@shahidali-qg9yw]

I have error of font_data.h

[@shahidali-qg9yw]

Plz solve my issue

[@worldexplorerPL]

@@shahidali-qg9yw you have found a place to upload this .h file

[@OviMG]

ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings] this is saying at password ssid lines

[@ahapersze1527]

Any code for rtc?

[@StechiezDIY]

rtc code is not required as this is ntp example.

[@astitvakashyap5551]

How can I contact yo

[@StechiezDIY]

you can reach me on my email id.

[@bintangdemarta9952]

How can i get time zone +7 ?

[@qsdrfghgujfddyffguff]

12 hours code modification pls

[@jackp2088]

it's easy, just subtract 12 from the hour variable if the hour > 12