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The RTC DS1307 is a handy solution to keep time all the way, when it is powered by a coin cell.
 
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.[[Serial_protocol_I2C|Check the basics of I2C]] here, if are not familiar with it.
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It is uses '''I²C''' ('''Inter-Integrated Circuit''') protocol, referred to as ''I-squared-C'', ''I-two-C'', or ''IIC'' for communication with the micrcontroller.[[Serial_protocol_I2C|Check the basics of I2C]] here, if are not familiar with it.
  
[http://exploreembedded.com/wiki/images/4/43/Schematic_AVR_Interfacing_RTC.pdf '''Schematic''']
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=Schematic=
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[http://exploreembedded.com/wiki/images/4/43/Schematic_AVR_Interfacing_RTC.pdf ]
  
 
[[File:Schematic AVR Interfacing RTC.JPG|680px]]
 
[[File:Schematic AVR Interfacing RTC.JPG|680px]]
  
 
[[Category:AVR Tutorials]]
 
[[Category:AVR Tutorials]]

Revision as of 12:31, 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

[1]

Schematic AVR Interfacing RTC.JPG