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I have made the circuit and tested it various times, however I don't get any kind of values. The batteries, electrodes and the cable going to the laptop function properly and circuit was checked various tymes, however I still get all the values as 0. The electrodes conduct 9v properly, however they are DIY, could that be the cause? I have checked the output capble and there's some voltage coming out, but the codde shows nothing, just like when you run it without connecting anything. If any of you has any possible idea of what could have gone wrong, pleaseeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee consider letting me know.
DIY EEG (and ECG) Circuit