Adafruit Data logging shield together with Ethernet shield

Adafruit Ethernet, Motor, Proto, Wave, Datalogger, GPS Shields - etc!

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ronsonol
 
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Joined: Wed Jun 16, 2010 2:41 pm

Re: Adafruit Data logging shield together with Ethernet shield

Post by ronsonol »

Not sure I follow exactly hardware wise, but is the main problem with logger shield modifications?
It looks like the perfect device with built in RTC for my needs.

But is seems the better option for ethernet on Mega is a NKC ethernet, which claims is compatible.

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ovidiu
 
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Joined: Tue May 25, 2010 6:33 pm

Re: Adafruit Data logging shield together with Ethernet shield

Post by ovidiu »

I published my library as open source, I hope you find it useful. I posted two entries on my blog about this stuff.

The first one explains the hardware modifications, as well as some software changes to existing libraries: http://www.webweavertech.com/ovidiu/web ... 00476.html

The second post describes the library itself, and provides a link to it: http://www.webweavertech.com/ovidiu/web ... 00477.html

Enjoy!
Ovidiu

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fat16lib
 
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Joined: Wed Dec 24, 2008 1:54 pm

Re: Adafruit Data logging shield together with Ethernet shield

Post by fat16lib »

The problem is that the Mega hardware SPI pins don't connect to a 168/328 shield's pins. The Data logging shield and normal Ethernet shield connect to SPI pins 10 - 13, not the Mega hardware SPI pins 50 - 53. People have made this work by adding wire to the Mega SPI pins.

The NKC shield connects to the ICSP header on the Arduino. This only works if it plugs into the Arduino Mega and stacking the Data logging shield on top may not work easily.

Richwest
 
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Joined: Mon Sep 19, 2011 4:39 am

Re: Adafruit Data logging shield together with Ethernet shield

Post by Richwest »

Hi guys,

I have problems to make the microSD shield work.
I have already tried several versions of the sdFat library, and several Arduino boards(MEGA2560, ATmega1280 and Atmega328), but the result is always the same. For the QuickStart.pde from the examples for sdFat there is always an error in card.init.

What may I try additionally to find out what causes the problem?
I have also tried different microSD cards of 512 Mb and 2 Gb sizes.

Is there a chance that I have a faulty shield?

Thanks in advance.

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adafruit_support_bill
 
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Joined: Sat Feb 07, 2009 10:11 am

Re: Adafruit Data logging shield together with Ethernet shield

Post by adafruit_support_bill »

I have problems to make the microSD shield work.
Are you referring to the Sparkfun product or our microSD card breakout board?
Sparkfun should be able to help you with their shield. If this is a breakout board question, please start a new thread.
Thanks :)

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