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Topic: Arduino Uno R3 SD card shield reading speed (Read 1 time) previous topic - next topic

cjeon

Nov 02, 2013, 04:22 am
Hi everyone,
I am designing an application using arduino uno R3 with SD card shield.
I am going to read binary data from SD card, but I don't know data reading speed from SD card.
Do you guys have any comments about this issue?
Thanks in advance.

CrossRoads

#1
Nov 02, 2013, 05:46 am
fat16lib has posted numerous speed results for his SDfat.h library.
Do some searching, or do your own testing.
https://code.google.com/p/fat16lib/
Designing & building electrical circuits for over 25 years.  Screw Shield for Mega/Due/Uno,  Bobuino with ATMega1284P, & other '328P & '1284P creations & offerings at  my website.

PaulS

#2
Nov 02, 2013, 08:55 pm
Quote
Do you guys have any comments about this issue?

Why does it matter? It is what it is.
The art of getting good answers lies in asking good questions.

liuzengqiang

#3
Nov 12, 2013, 09:43 pm
It's tens of kilobytes per second. How fast do you need? Data faster than that will have to come from FLASH or SRAM.
Serial LCD keypad panel,phi_prompt user interface library,SDI-12 USB Adapter
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