A brain computer interface (BCI) module includes a flexible printed circuit assembly (FPCA) configured to conform to the head of a user. A plurality of emitters and a plurality of detectors are mounted on the FPCA. Each emitter of the plurality is configured to emit light towards the head of the user and each detector is configured to detect the emitted light. An array of ferrules is additionally mounted to the FPCA such that each ferrule of the array encases an emitter or a detector. The BCI module additionally includes a controller that is configured to receive an optical signal detected by a detector of the plurality and to encode the detected signal into a biological signal.
Brain computer interface architecture