bits of contiguous EEPROM memory. The device is available in the standard 8- pin PDIP, 8-pin SOIC ( mm), 8-pin 2×3 DFN and TDFN, 8-pin MSOP and. DataSheet: PDF icon Serial EEPROM 24Cpdf. AT24C02 is an electrically erasable and programmable ROM. It has a 2Kbits of memory size arranged in 32 . edge clock data into each EEPROM device and negative edge clock Part of the Array Protected. 24C01A. 24C 24C 24C 24C At VCC. Full (1K).

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24C02 | EEPROM AT24C02 | Datasheet – Pin Diagram & Description

Yes, I did read the datasheet, but it seems that I do not fully grasp some of the hseet Do not send technical questions via personal messaging – they will be ignored. I speak for myself, not Arduino. I corrected my code, recompiled, uploaded, tried You give the I2C device an address, and then immediately say “have you got any data”?


It hasn’t yetso you return your unitialised variable “result”, but the library kindly buffers the data from the I2C bus when it does arrive. Next time you call the I2C read routine, you give it an address, and again immediately say “have you got any data? You didn’t want it last time, but I saved it for you anyway.

Reading/writing from/to 24c02 eeprom

I understand perfectly your point, AWOL. And indeed, you are quit right, of course.

Reading the datasheet gave me the wrong impression that I could get away with being impatient. And me not initializing the variable “result” is indeed not quite!

However, I just wanted to give my impression that there seems to be little way to know for sure that the data being read was indeed correct. In the above setup, I knew it of course, as I daat wrote it.

But what if the data came from some sensor or eeprim But that does not make them available Apparently, there should perhaps be some time between available and receive Thus here it is: In this particular setup, at least.


I had the impression that ” I had to ask it twice

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