| Abstract |
My initial proof-of-concept prototype was successfully constructed for approximately €200, leveraging components such as the ECG AD8232 to acquire brainwave EEG signals. While this low-cost assembly was immediately functional and successfully demonstrated the potential for democratising biosignal technology, the prototype revealed a critical engineering paradox: my budget design introduced significant signal noise and unreliability. This instability, a direct result of using temporary connections and unshielded components, highlighted a key reason why professional systems are so expensive: they must engineer out these complexities. This struggle was an important practical lesson. The limitations of Prototype 1 have led to a concrete and ambitious plan for Prototype 2, currently under development. This next phase focuses entirely on transforming the initial proof-of-concept into a robust, reliable, and portable system. Key hardware steps include designing a PCB to ensure solid, soldered connections, implementing metal Faraday cage shielding to eliminate external electromagnetic interference, and researching improved electrodes to stabilize contact. Beyond hardware, I am committed to developing a user-friendly system, including a (GUI) for real time data visualization. This journey confirms that while cheap technology can be democratized, achieving professional reliability and usability requires a investment of time and expertise in mitigating noise and engineering challenges, reinforcing the value of every setback encountered. This is not a medical device as it is not regulated.
|