NextGenBeing Founder
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Loading...Introduction to Brain-Computer Interfaces
Last quarter, our team discovered the potential of brain-computer interfaces (BCIs) in enhancing human-computer interaction. We were particularly interested in OpenBCI, an open-source platform that allows for the creation of custom BCIs. Here's what I learned when building a BCI with OpenBCI and Python 3.12.
Setting Up OpenBCI
When I first tried to set up OpenBCI, it broke because I didn't realize the importance of properly configuring the EEG sensors. The OpenBCI documentation shows the happy path but misses the crucial step of tuning the sensor gains. After debugging, I found that using a gain of 24 for the EEG channels provided the best signal quality.
Neural Signal Processing
Most docs skip the hard part of neural signal processing, which is dealing with noise and artifacts. I realized that using a combination of band-pass filtering and independent component analysis (ICA) significantly improved the signal quality.
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