Go Down

Topic: Integration of external flash memory wih arduiino uno (Read 480 times) previous topic - next topic

jahnavi

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

Nick Gammon

Example here:

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

jahnavi

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

Thank you

Paul__B

Strange question.  Why do you want something different?

MichaelMeissner

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.

Paul__B


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!

mrburnette

#6
Oct 22, 2013, 03:12 pm Last Edit: Oct 22, 2013, 03:13 pm by mrburnette Reason: 1
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 :D
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

Nick Gammon

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
http://www.gammon.com.au/electronics

jahnavi

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

mrburnette

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

Go Up