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[http://exploreembedded.com/wiki/images/4/43/Schematic_AVR_Interfacing_RTC.pdf '''Schematic''']
 
[http://exploreembedded.com/wiki/images/4/43/Schematic_AVR_Interfacing_RTC.pdf '''Schematic''']
[[File:Schematic AVR Interfacing RTC.JPG|680px]]
 
  
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[[File:Schematic AVR Interfacing RTC.JPG|680px]]
  
 
[[Category:AVR Tutorials]]
 
[[Category:AVR Tutorials]]

Revision as of 12:28, 4 February 2015

Basics

The Real time clock DS1307 IC basically is stand alone time clock. Well, basically we can use a micrcontroller to keep time, but the value would go off as soon as it is powered off.

The RTC DS1307 is a handy solution to keep time all the way, when it is powered by a coin cell.

It is uses I²C (Inter-Integrated Circuit) protocol, referred to as I-squared-C, I-two-C, or IIC) for communication with the micrcontroller.Check the basics of I2C here, if are not familiar with it.

Schematic

Schematic AVR Interfacing RTC.JPG