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Re:Low-cost open-source active electrode to measure EEG by brookst on Monday July 29, 2024 @08:42AM (#41099991)
I’m super interested in BCI in general, but not convinced hobbyist (< $1000) equipment is useful enough to be worth the investment at this point.

Once a year or so I check in on Emotiv and OpenBCI and Neurosky and others, and so far nothing seems to hit the affordable + casually hackable spot that will make me pull the trigger.

So yeah I’m interested, but primarily in a turnkey solution from hardware to software libraries.

Re:Low-cost open-source active electrode to measure EEG by llm_trw on Monday July 29, 2024 @08:43AM (#41100001)
Cheap, easy, good.

Pick two.

Re:Low-cost open-source active electrode to measure EEG by brookst on Monday July 29, 2024 @08:50AM (#41100049)
All three are subjective.

I find ice cream to be cheap, easy, and good. Also raspberry Pi boxes. And paying $10 to stream a great movie.

But hey, tell me i can get something amazing for $1500 and I’m in. Tell me its $100k and I’m out.

Re:Low-cost open-source active electrode to measure EEG by amelius on Monday July 29, 2024 @08:47AM (#41100031)
Was anybody able to find the circuit schematics of this open-source design?
Re:Low-cost open-source active electrode to measure EEG by TheJoeMan on Monday July 29, 2024 @08:54AM (#41100084)
One suggestion for innovation above and beyond current expensive equipment would be to make a dual-electrode sensor with the noise cancellation built-in. I worked in a research lab that pioneered this [1], essentially when you are wearing EEG you typically have to hold your head very still due to motion artifacts. So to permit gait/prosthetic studies, they came up with gluing electrodes back to back so that the outer one just faces upwards and collects the noise. However, this doubles the equipment costs, as well as requires MATLAB post-processing for noise removal. So an all-in-one unit would be very interesting to see.

[1] https://pubmed.ncbi.nlm.nih.gov/30074489/