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Custom Data-Logger Shield with ChronoDot?
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Custom Data-Logger Shield with ChronoDot?

by keen101 on Sat Feb 12, 2011 1:43 am

Ok, so i bought one of the datashields, and it should certainly come in handy. But, within the diybio community there is a need/push to get more open source hardware and tools. The data shield is an excellent idea for DIYscience, but for some people a more accurate RTC clock will probably be needed. Hence this project.

I've been working for a few days hijacking the Data-Logger Shield in EagleCad to house a ChronoDot RTC and a OpenLog mini SD card slot. Unfortunately, i'm having a little trouble. Right now, the OpenLog is wired with tx and rx to the arduino tx and rx per this refrence blog here: http://www.sunshinehere.com/blog/?p=104.

Anyway, i'm just wondering if having it hooked up to rx and tx on an arduino while reprogramming would mess up the OpenLog? If so, how would i wire it up like the original SD card slot? If anyone can help it would be appreciated. If anyone has other ideas on how to improve the design, i'd love to hear those as well. Comments welcome!

Here are the Eagle files i've got so far.

Thanks.
Attachments
logger_test1.zip
Custom Data-Logger with ChronoDot RTC - Test 1
(97.29 KiB) Downloaded 104 times

keen101
 
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Location: Colorado

Please be positive and constructive with your questions and comments.