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Dangerous Prototypes

General Category => General discussion => Topic started by: davervw on September 08, 2013, 12:52:21 am

Title: 3V-5V Switchable I2C Real Time Clock Shield
Post by: davervw on September 08, 2013, 12:52:21 am


Using the Maxim/Dallas 1307 RTC that runs at 5V with the Arduino Due that runs at 3V.  FETs are used for bidirectional level shifter per a Philips app note.  All built on a freetronics ProtoShield of course!

More details here http://http://techwithdave.blogspot.com/2013/09/3v-5v-switchable-i2c-real-time-clock.html
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