How do I use a Real Time Clock with Arduino? RTC 1307

How to use a real time clock with an arduino. DS1307

[felixbelair]

Is there somewhere we can find the code?

[dhannnn_gd]

i bought a few arduino nano’s for small projects like these. could i use a arduino nano instead of a uno? or in my case a arduino mega 2560

[stevec]

How do you ever get those RTC modules to work? I got 6 of them from Amazon and can't get any of them to work since the 32 KHz crystal doesn't oscillate and the ds1307 doesn't do anything! I tried replacing the crystal on one of them but that didn't make any difference. I wonder if they were all made with counterfeit clock chips or what is going on with them?

[chrisnijland]

But if I sell this clock how can the user set the winter and summer time?

[CaliforniaJoe]

What modifications did you make in order to get the I2C LCD screen to work? I am attempting this project and seem to be missing something, the Serial Monitor prints as you show but when I switch to LCD.Print it does not print as yours. I heard you say you modified the code to dial it in, I am wondering what it was you had to do.

[rharibabu]

Mobile app la eppadi Arduino Uno with rtc module ds1307 upload saivathu? Please tell me..

[spoon]

But how long does the battery last tho?

[Julien]

Табличка "Убьет!" на русском :)

[waisauxon]

senin yüzünden yüzüm hiç bir zaman gülmedi umarımm rtc modülleri arasında bğoulursun

[stevec]

This is really stupid since he never tells what sketches he used or anything so we can duplicate it! Two thumbs down!😝😡💩