If all you want to know is how to write to an SD card from an Arduino, goodness, google is your friend. Look at the very first hit:
http://jvcideas.blogspot.com/2007/08/ad ... tep-1.html
There are dozens of relevant hits if you dig a bit.
But I think you'll find that's only one piece of a very large puzzle.
Servo Movement Recording (Data Logging?)
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No need for a file system ... just dump it in memory.
I found a 2MB serial eeprom somewhere ... it was cheap like $4 or something. I think it may work. The only thing I would worry about with that is the # of times you can write to it .... it's somewhere around 10,000 writes before it's no good.
thanks,
Phil
I found a 2MB serial eeprom somewhere ... it was cheap like $4 or something. I think it may work. The only thing I would worry about with that is the # of times you can write to it .... it's somewhere around 10,000 writes before it's no good.
thanks,
Phil
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one thing about sd cards is that they require 3.3v. so you need dual power supplies, (i guess you'll neeed this anyway if you're going to use an mp3 decoder), and voltage dividers on all the inputs to the sd.
eeproms can be had as 5v parts and here's a tutorial i found that describes hooking up a 64k atmel part to the arduino.
http://www.arduino.cc/en/Tutorial/SPIEEPROM
eeproms can be had as 5v parts and here's a tutorial i found that describes hooking up a 64k atmel part to the arduino.
http://www.arduino.cc/en/Tutorial/SPIEEPROM
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That 64KB EEPROM link is nice. I think I will start with that for now and see if I can make this work.
Has anyone seen this: http://www.futurlec.com/Mini_FLASH.shtml
... looks pretty cool. 2MB memory and cheap.
thanks,
Phil
Has anyone seen this: http://www.futurlec.com/Mini_FLASH.shtml
... looks pretty cool. 2MB memory and cheap.
thanks,
Phil
Please be positive and constructive with your questions and comments.