Tutorial 11 for Arduino: SD Cards and Datalogging
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Uploaded by sciguy14 on Apr 5, 2011
You can download the parts list, code, and schematics from this episode on my website: http://jeremyblum.com/2011/04/05/tutorial-11-for-arduino-sd-cards-and-datalog...
Watch all of the videos in this series here: http://www.youtube.com/playlist?p=A567CE235D39FA84
This tutorial series is sponsored by element14. Check out their arduino group!
http://www.element-14.com/community/groups/arduino
Thanks to http://www.cooking-hacks.com for supplying the SD Card Shield!
Follow me on twitter: http://www.twitter.com/sciguy14
- 128 likes, 8 dislikes
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Uploader Comments (sciguy14)
All Comments (53)
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Couldn't you just have sent binary numbers?
Four bytes of binary numbers will get you 4,294,967,297 numbers, while four bytes of decimal numbers encoded as binary data - which does not make much sense - only gets you 10,000 numbers.
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Hey Jeremy,
Will the code be essentially the same for other SD shields out there (maybe just some pin changes)? I am looking at some other shields that fit my needs better. Also, is 2GB the limit of FAT16?
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Where do I get the shield you use in this video
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@sciguy14 can you help me or not?
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From previous experience with SD cards (not using an Arduino), I had a problem with adding data to the end of an existing file. When I opened the file to write, it would overwrite the existing file. Is this a problem with this method or is there a method to add to the file? I will be using the SD card to store a lookup table. It is possible that I will need to add values to that lookup table after the card is already in place.
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What software are you using to initialize the sd card? I did some survey on the logging stuff where the Fatfs library is kind of confusing me now. I don't really understand purpose of including the Fatfs library and is it necessary for the logging system where i didn't see any on this code appear in your tutorial. Thanks and looking forward to your reply.
lilinghiew 1 month ago
@lilinghiew You need to initialize it as FAT16 with your computer first. (Format it).
sciguy14 1 month ago
i have these pins: MISO, SCK, SS, MOSI, GND and 5v please help
ONixaO 1 month ago
@ONixaO That's not a question... what's the issue?
sciguy14 1 month ago
What is the max sample rate for data storage?...
i need store data from one three axis accelerometer @ 30 ms... Arduino+SD can do the job?
best regards
JhonssonCOL85 4 months ago
@JhonssonCOL85 You should be able to accomplish that.
sciguy14 1 month ago