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Expensive RTC chip on data logging shield
Moderators: adafruit_support_bill, adafruit

Expensive RTC chip on data logging shield

by SvenF on Mon Mar 18, 2013 6:03 am

Why have you used the DS1307 real time clock on the data logging shield? On Newark, this costs $3 while there is a bunch of RTC chips priced below $1.
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Re: Expensive RTC chip on data logging shield

by adafruit_support_bill on Mon Mar 18, 2013 6:40 am

The DS1307 is easily interfaced via i2c and has a well supported Arduino library.

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Re: Expensive RTC chip on data logging shield

by SvenF on Sun Mar 24, 2013 4:29 am

Ok. Thanks for the answer.
-Where can I find the schematics for the current version of the logging shield?

//Sven
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Re: Expensive RTC chip on data logging shield

by adafruit_support_bill on Sun Mar 24, 2013 7:44 am

The schematics are the same on the two boards. We just re-did the layout for surface mount on the latest version. Here are the board files for the through-hole version: https://github.com/adafruit/Data-Logger-shield

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Re: Expensive RTC chip on data logging shield

by JurgenG on Mon Mar 25, 2013 3:47 am

Hi,

I guess I'm continuing on a side topic of this thread, but I'm also interested in the Eagle files for the v. 1.1 of the board.
I would like to customize it, and could use the extra space the SMD-stuff released.

Anyway, already a big thank you for putting those source files out there for v. 1.0!

btw... no plans for replacing the SD-card by a micro-SD card? It would salvage even a bit more space :)
Just some fun Arduino tricks on my personal blog: http://jurgen.gaeremyn.be/index.php/hardware/arduino/
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Re: Expensive RTC chip on data logging shield

by adafruit_support_bill on Mon Mar 25, 2013 6:39 am

I'll see if I can track them down...

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Re: Expensive RTC chip on data logging shield

by SvenF on Tue Mar 26, 2013 3:55 pm

I'm sorry, but I don't agree that the 1.0 schematic has been used on the new SMT logger shield (article number 1141). I have the board in front of me, and it has two additional LEDs, one power LED and one SD clock LED.

It would be nice to see that schematic.

//Sven
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Need schematic for logging shield!

by SvenF on Fri Apr 12, 2013 10:13 am

I would really need the new schematic for the logging shield (article number 1141). Can you please publish it? I am definitely certain that it has been changed since the non-SMT version of the board.

Please? :)
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Re: Expensive RTC chip on data logging shield

by adafruit_support_rick on Fri Apr 12, 2013 10:30 am

It's already on our to-do list. No ETA though - sorry.

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Re: Expensive RTC chip on data logging shield

by whatnick on Thu Oct 23, 2014 11:14 am

Hi All,

Just because the shield is hard to get in Australia, I remixed the v 1.0 shield with SMD parts from the Seeed OPL and created a github fork - https://github.com/whatnick/Data-Logger-shield . I am going to send it to fab soon. Meanwhile I would like some feedback. I kept the Adafruit text since it is just a re-layout. Might add some Grove connectors and other things too.

Cheers,

whatnick.

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Re: Expensive RTC chip on data logging shield

by adafruit2 on Thu Oct 23, 2014 11:26 am

hi please remove the adafruit text, it is our trademark. you can say it is a derivative of our work, but not imply that we manufactured it

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Re: Expensive RTC chip on data logging shield

by whatnick on Fri Oct 24, 2014 10:03 am

No problem. Will acknowledge derivative.

Cheers,

whatnick.

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