Can EEG data be converted into a bright and dark square strobe through input frequency values on Psychopy?

[pmolfese]

Yes this can be done. You might start with some of the other “real-time EEG” threads:

Real-time EEG experiment

I have a question regarding a real-time EEG experiment with PsychoPy. Assume I have access to real-time EEG stream with labstreaminglayer (LSL). Using pylsl I have to be able to access to real-time EEG signals. Then, let’s say I have to process every 500 samples of EEG signals in real-time and do something after. Is it possible to keep in memory the last received 500 samples of EEG in Psychopy and process in real-time? If yes, how?

Depending on your EEG system, you can stream the data out via Python or LSL, do an FFT or other frequency conversion, and then scale that to a value for the stimulus properties.