I2C EEPROM with the Arduino Part 3

Warning, this part of the series is just me fooling around with the code. If you've made it this far, I will bore you to tears even further with this video, but for some of you, this will be interesting to watch, since much of you can relate to the coding experience

Category:

Howto & Style

Tags:

• Arduino
• EEPROM
• I2C
• Part

[haunted2097]

Thank you for the great videos! It was bot boring at all and it was very enlightening!

[kdarrah1234]

@haunted2097 thanks!! appreciate it!

[catswillruleyou]

How would you put multiple addresses for several chips on the same bus?

[kdarrah1234]

You actually physically change the address of the eeprom by making the "A" pins either +5V or GND. When you want to call out to the eeprom, you use that address defined by those connections. In the video, I talk about this, and I tied all the address pins to gorund, therefore my "chip" address was 0x50, if I tied all of them to +5V, the address would be 0x57, check out the datasheet, "control byte" for more information, they explain things pretty clearly

[marcjacobi]

Thanx for the explanation. You mentioned you didn't think it would be a 32k address space. There are 15 adress bits (A0-A14) and 2 ^ 15 = 32k, so.... ;-)

[zistofowner]

Nice tutorial!! :P

ps. instead of < 15 you could've used Sizeof(dataword)-1  :)

[zeran1000]

thanks for teaching! :)

[ncw2k69]

great tutorial :)

[manutube8080]

IT WASN'T BORING THANX A LOT

[catswillruleyou]

Thank you that answered my question