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Author Topic: Integration of external flash memory wih arduiino uno  (Read 445 times)
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Hi,

I am doing a project which require to store the readings taken from the sensor. So need to attach the external flash memory (200KB)  to the arduino uno. please let me know if there is any refernece avaiable to start with this.

Thank you
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Example here:

http://www.gammon.com.au/forum/?id=10979
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http://www.gammon.com.au/electronics

Please post technical questions on the forum - not to me by personal message. Thanks a lot.

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Thank you for example. Is there any other example that uses i2c.

Thank you
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Strange question.  Why do you want something different?
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Rather than EEPROM, you might want to consider a micro SD card.  It has the advantage that it has more storage space, and you can just remove the card from the Arduino, and put it in a card reader on the computer, so you don't have to write the upload part.
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Rather than EEPROM, you might want to consider a micro SD card.  It has the advantage that it has more storage space

By ten thousand times!
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Somewhere around the forum I posted my Flatduino, a 328P cheapie mated to an SD card.  The SD card has a 3.3V regulator that supplies the SD card and the 328P, so the power is 5V in, the data lines all run at 3.3V and there is no buffering required smiley-grin
http://www.instructables.com/id/Build-A-FLAT-duino/
http://www.instructables.com/id/Under-8-Arduino-Serial-Data-Logger-Record-to-SD/

Commercial SD readers are sold by the likes of Adafruit and Sparkfun.


Ray


* SD Card Reader Test.JPG (43.02 KB, 1024x768 - viewed 22 times.)
« Last Edit: October 22, 2013, 08:13:59 am by mrburnette » Logged

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Perhaps if you explain in more detail? In what way was my earlier suggestion not appropriate?

Below is a temperature logger which writes to an SD card.

http://www.gammon.com.au/forum/?id=12106
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Hi,

I am using the sd card as primary storage device and the flash memory to store the latest readings from the sensors.

Thank you
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Quote
I am using the sd card as primary storage device and the flash memory to store the latest readings from the sensors.

?

I understand sensor data.  I do not understand "primary storage" context.  IF YOU have not resolved your inquiry, we can try to help but you are going to need to be more specific in what you wish to accomplish ...
This is a mandatory read for all Arduino newcomers:
http://learn.adafruit.com/memories-of-an-arduino/arduino-memory-architecture

Unless your data acquisition lime is "long" then storing sensor data in EEPROM is unusual.

My earlier like is a serial-logger, that is absolutely everything written to the serial port is captured to the SD card.  This can subsequently be read by any modern PC.

Ray
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