[time-nuts] Maxim DS1342

[Didier Juges]

You want to drive the RTC with an external PPS to get time/date into an Arduino?
Why not feed the PPS to the Arduino and have it compute date and time?

It is really not that hard to count seconds. You don't really need an external chip to do that.

Didier KO4BB


Russ Ramirez <russ.ramirez at gmail.com> wrote:
>I'm thinking of doing a breakout board similar to this one
>http://bit.ly/1buC4ZD for the subject Maxim chip.
>
>"Why?" you may ask. Unlike many other RTC chips, this one supports a 1
>PPS
>drive. The specs are here http://bit.ly/1eE5vh1 on the Maxim site.
>There
>seems to be considerable interest in driving RTC's with 1 PPS for use
>with
>an Arduino, MSP430, PI, etc. leveraging what many already have - a
>GPSDO 1
>PPS signal. There is the TAPR T2-Mini for cases where a 1 PPS is not
>available.
>
>So I'm wondering if anything else like it already exists, and this is a
>waste of time :-)
>
>Russ
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