This week, I focused on testing everything out. I identified the location of the filament and continued developing the posterior part of the head. I worked on improving how the components fit together and made adjustments to increase stability and comfort. Throughout the process, I tested different parts of the design to make sure everything functioned properly and reliably. This helped strengthen both the structure and overall performance of the project.

This Arduino program reads brainwave (EEG) signals through an external ADS1220 using SPI communication, alternating between two channels to collect voltage samples. It converts the raw 24-bit data into normalized voltage values and stores them in arrays. Once enough samples are gathered, it uses the ArduinoFFT library to perform a Fast Fourier Transform (FFT), which converts the signals from the time domain into the frequency domain for analysis of brainwave patterns. The program continuously outputs the sampled voltage data to the Serial Monitor while repeatedly collecting and processing new data.