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|   August  7, 2008 at 9:02 PM

Great little ic, got it working with my basic stamp in no time. Works well for data logging.

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|   January 26, 2009 at 2:07 PM

Nice ic, it helps a lot managing lot of data, and you can configure the i2c addr so you can use 8 of these in the same bus.

Best chip to controle my bitmaps for the nokia lcd with the arduino.

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|   February  3, 2009 at 2:01 AM

I just made an English tutorial:
http://sites.google.com/site/ghettohax/other-hax/i2c-eeprom-for-the-arduino

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|   September  4, 2009 at 11:44 AM

no matter what i try i cant seem to get these eeproms to work. i followed the tutorial for my arduino. hooked everything up (1->4&7 to gnd,8 to 5v,4&5 to the i2c pins)
yet i cant receive any data. ive folowed the code,tried other eeproms(in case of a broken one),other codes on the net,various pull-up resistors,various device adresses and yet it wont work. am i doing something wrong or is there something wrong with the wire lib?
im using the latest arduino software(0017).

any help would be very appreciated.

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|   October 31, 2009 at 11:10 AM

@Chiel:
I'm also using arduino IDE 0017, this chip and a duemilanove. I didn't need any pull-up resistors (all I've got are eight jumper wires, a bread board and the IC), and used the code from pastebin.com/f3a36644b which is a complete sketch using the functions from arduino playground.
Could it be you've got the I2C pins reversed, or have other I2C devices hooked up (I had a blinkM and a Wii Nunchuk on the same bus, all up and working, but later removed the blinkm initialization code from my sketch, but left the device connected to the breadboard which also broke functionality with the eeprom, just unplugging the smart led made everything fine)?

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|   December 20, 2009 at 1:32 PM

A couple of things to look for. The tutorial refers to pins 4 & 5 on the Arduino. These are the _analog_ 4 & 5 pins, not digital.

One of the tutorials mentions a 5ms delay between reads and writes. I added delay(5) in the loop and then the code started working.

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|   October 13, 2009 at 2:07 PM

Link to Arduino tutorial has changed:
http://www.ghettohax.com/2009/02/i2c-eeprom-for-arduino.html

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|   November  6, 2009 at 3:27 AM

Any chance that you guys plan to bring this in an SOIC pinout?

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|   November  9, 2009 at 6:51 PM

windows app. link ends up with a corrupt rar file, would've been nice to try it...