Arduino EEPROM - 24C04 | 24C08 | 24C16 | 24C32 | 24C64 (No Libraries) 

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Thanks for your feedback

Sorry I thought of giving a complete video series fully is it ok so that you can learn everything in a sequence

I use at24c64 eeprom

Ok that is becoz the line is in high state only that’s y it is read as max value of 8bit variable

Please check the datasheet whether the sequence is ok for that eeprom

You can only write data byte by byte and store as ascii characters you can write your own function for that too

You may have to use more memory sized eeprom like 24lc08 or 16 or 32

@@SMtrainingacademy Hello, thank you for the offer I wrote a program to read and write the second block of EEPROM memory 24lc04 now i can read &write 512 Byte.

Thank you

Actually if a microcontroller supports i2c peripheral it will be able to write or read from i2c bus, since i2c is an multi master communication.

@@SMtrainingacademy I guess I’m confused. the atmega328p states that it has master and slave interfaces. The attiny441 states that it just has the slave interface. What’s the difference between the two?

@@kirkkeinanen592 give me sometime I’ll refer attiny441 datasheet and I’ll will clarify your doubts

I read the datasheet and understood that as per your thoughts you are right, attiny441 cannot be configured as i2C master it is dedicated slave so you cannot use this controller for initiating and fetching data from another slave device like memory or rtc..., instead this can be used a slave for another master device or microcontroller for communication purpose.

@@SMtrainingacademy thanks for the insight. I’ve read that i2c devices can be used on an spi bus. I’m going to try this method to write to the EEPROM.

Ya you can convert the number store it in decimal format right?

@@SMtrainingacademy i don t know how convert and save...thanks for you repply

@@cristiangs2307 if you just multiply any float number with 100 you will get two decimals values into a decimal number so you can store that Ex: 24.754 x 100 = 2475.4 You can store 2475 right 24 is decimal and 75 is fractional part

@@SMtrainingacademy Now I understand. Thanks for explaining! thanks

@@cristiangs2307 🥰🥰