3V-5V Switchable I2C Real Time Clock Shield

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davervw
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3V-5V Switchable I2C Real Time Clock Shield

Post by davervw » Sat Sep 07, 2013 11:39 pm

Image

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://techwithdave.blogspot.com/2013/0 ... clock.html

andrew
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Re: 3V-5V Switchable I2C Real Time Clock Shield

Post by andrew » Sun Sep 08, 2013 1:09 am

Fantastic work Dave, thanks for sharing that with us.

davervw
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Re: 3V-5V Switchable I2C Real Time Clock Shield

Post by davervw » Wed Oct 02, 2013 4:03 am

You're welcome! I really enjoy working with your Basic ProtoShields. It is a means to make prototype creations (add-ons) usuable between a variety of the development boards I work with.

andrew
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Re: 3V-5V Switchable I2C Real Time Clock Shield

Post by andrew » Wed Oct 02, 2013 8:24 am

davervw wrote:You're welcome! I really enjoy working with your Basic ProtoShields. It is a means to make prototype creations (add-ons) usuable between a variety of the development boards I work with.
Yes, I see your website has quite a variety of them. I liked your notes about various I2C EEPROM shields:
http://techwithdave.blogspot.com.au/201 ... undup.html
If you're using Raspberry Pi we'll have something of interest for you in the near future.

vexmatech
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Re: 3V-5V Switchable I2C Real Time Clock Shield

Post by vexmatech » Mon Mar 27, 2017 11:29 am

I really enjoy working with your Basic ProtoShields. It is a means to make prototype creations (add-ons) usuable between a variety of the development boards I work with. prototyping services gujarat india

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