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I2c eeprom with Adafruit numeric display
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I2c eeprom with Adafruit numeric display

by BReeves on Sat Aug 12, 2017 4:30 am

Have two numeric displays with I2c backpacks on the way, what I am wondering is if I can hang a I2c eeprom on the I2c buss and use the backpack driver to access it? I have a few 24C256 eeproms on order but not sure if it will be compatible with the backpack chip. Wouldn't be against using a different eeprom if the 24C256 simply will not work. If it matters I will be using a Teensy 2.0 with the Arduino libraries.

Thanks
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Re: I2c eeprom with Adafruit numeric display

by adafruit_support_rick on Sat Aug 12, 2017 12:09 pm

I don't know what you mean about using the backpack driver to access the eeprom. You'll need a separate driver for the eeprom.
However, as long as the I2C addresses don't conflict, you'll be able to use the eeprom on the same I2C bus as the display

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Re: I2c eeprom with Adafruit numeric display

by BReeves on Sun Aug 13, 2017 4:52 am

Sorry, should have said "Library" instead of "Driver". Just discovered the Teensy has a 1024 byte eeprom built in and will not need the external eeprom. Sorry to have bothered with what ended up being an irrelevant question.
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