Hi. I'm working with an Arduino Mega. The internal EEPROM is a dream to use but I've gone on to get a 24LC256 to attach via I2C. I had planned on just using the Wire library, not something esoteric.
I'm not sure of how it and the internal EEPROM will work together. Can someone please help with that aspect? Are they seen and treated as two separate devices in some way or are they just seen as a blob of contiguous memory?
Is there a recognised way of programmatically simply detecting the external device as attached and ready for use? I could just attempt a read from it but I'm not sure of the ramifications of that approach.