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read/write
Posted: Sun Oct 02, 2022 5:22 pm
by Sergejs
Hello,
I can not write and read 24c32 IC with my Arduino NANO 328. Can any help me please?
Re: read/write
Posted: Wed Oct 05, 2022 1:59 pm
by BenR
Hello,
Do you have external pull up resistors on the I2C clock and data connections?
Re: read/write
Posted: Thu Oct 06, 2022 8:59 pm
by Sergejs
No, I have not. What resistance is need to put resistors there?
Re: read/write
Posted: Fri Oct 07, 2022 10:19 am
by BenR
4K7 or 10K should work if you have them.
You might also be able to use the internal pull up resistors on the arduino pins by writing a 1 to the corresponding bits of the port register using a C icon.
Re: read/write
Posted: Wed Oct 12, 2022 12:12 pm
by Sergejs
I have about million of resistors. I am radioamateur in past. But now I like to play with MCU