there is any RTC DS1307 tutorial

Projects General Guidance
1

I wanted to make a clock with an RTC DS1307 and also using a I2C 16x02 LCD, and as they will be using only 2pins (I2C) I'm wondering if could using a jelly bean attyny85, we'll see...

what I really want to know is who can extract the individual bytes of information from the rtcDS1307 , I wanted to write just in the first line of the lcd the day of the week and the date for example: "Tues. 12/11/2013" ; and like it's going to change once every24h i don't want to recall those bytes.
the second line is going to be the time and the temp, using the DS1307 and a 18b20 and this is the line that I have to change every minute.

thank you. :sweat_smile:

2

Yes, there are numerous Arduino DS1307 tutorials.

I recommend Google as a good way to find them.

3

This suit?

http://playground.arduino.cc/Code/Time

4

I really forgot to search in google! :expressionless:

5

Search on the FreeTronics website - they have a great project up there creating an alarm clock with a DS1307 .

Here you go :slight_smile: :slight_smile:

http://rweather.github.io/arduinolibs/alarm_clock.html

Craig

6

craigcurtin:
Search on the FreeTronics website - they have a great project up there creating an alarm clock with a DS1307 .

Here you go :slight_smile: :slight_smile:

http://rweather.github.io/arduinolibs/alarm_clock.html

Craig

Thank you that really helps, and also I'm using the example form gardner

7

Hello you all

I following adafruit's tutorial I finally get something more or less functional, just need to adjust the data format and add UI, thanks to gardner.
you can see that the LCD show the data like they did on the Alarm Clock from ArduinoLibs, thanks craigcurtin.

I'm looking forward to big numbers like BigBlue a gorgeous clock project:
http://forum.arduino.cc/index.php?topic=90855.0

I also find this one:
http://kevinrye.net/files/16x2lcd_clock_new_gui.php