NOYITO AT24C256 EEPROM Memory Module IIC I2C Interface - MCU Development Accessories (Pack of 2) Blue

They work but you need to get the right library I got it working with the wire library just ask ChatGPT. Wanted alarger amount of storage but this worked

No response on questions from the seller. But, the board is of seemingly good quality. Here's what you need, the untold half of the story.I rang out the board. The addresses A0, A1, and A2 are disconnected. Internally the device has pull down resistors. So when trying to talk to this guy, you need to set the addresses to 0x50 and you're set. Another critical piece of information: Download uEEPROM library. This is the only one that I have tried that seems to work. There are a few 24Cxxx out there, but I haven't tried them. Post and let us know please. Good value.

Great! Worked perfect as my EEPROM upgrade on SKR board.

These work as they should. Thanks

One was defective

I added this to my control board, BTT Skr Pro v1.2 and changed the config to allow it to work. It does exactly what I had hoped for. M500 saves directly to this EEPROM.All in all this is a great addon product and works as it should. Well worth a full 5 stars.

I was able to r/w to this part using a RPi without issue.