Is there an instruction from Adafruit how to build a multi-sensor EEG device by ourselves?

We do not know of such an instruction from Adafruit. But we invite you to test the following solution: Take a TGAM EEG module: Take the Adafruit Raspberri Pi BroadcastNet bridge, which is explained in the following video of John Park from Adafruit: This might be challenging for beginners. But is this not a a …