If you want an independent look at the specs, CNX Software and Hackster just wrote about the board here:

https://www.cnx-software.com/2025/12/26/cerelog-esp-eeg-a-lo...

And here

https://www.hackster.io/news/this-open-source-eeg-board-brin...

I'm a mod here - just wanted to let you know that I edited your text to fit HN conventions a bit and moved it to the top of the thread.

Welcome to HN! I hope your project gets some good discussion.