How to read AT24C32 EEPROM if it uses 8 bit addres but Wire.h 7 bit

Projects Programming
1

How to read AT24C32 EEPROM if it uses 8 bit address but in Wire.h 7 bit ?

2

Wire EEPROM address bit 8 to earth for 0xxxxxxx or to 5v for 1xxxxxxxx.
G

3

The EEPROM has a 7-bit address on the I2C bus, used to address (or select) the actual chip you want to talk to.

The actual memory inside the EEPROM is addressed using 8 bits. The address is usually passed as one/several of the data bytes when you talk to the chip.

See pages 11 & 12 of the Microchip doc you linked to in your post.

4

I guess that the address can be hard wired by A0..2 pins from 0x50 to 0x57.

5

The I2C DEVICE ADDRESS is seven bits. The Data is EIGHT. Within the device address additional locations can be specified as DATA

6

thank you all

could please explain how to use requestFrom() ?
an example (how to read data block) if possible

7

You should write some data before reading. At which address do you want to deposit what data?

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