Electroencephalograph prototype on the ESP32 platform

The article discusses a system for recording electroencephalographic (EEG) signals using a minimal set of hardware. Electroencephalography with a high temporal resolution records the bioelectric activity of the brain, which allows obtaining information about the activity of neurons. The device, based on the ESP32 microcontroller and the AD620 amplifier, is capable of recording and transmitting EEG signals to a computer for subsequent analysis. We tested the prototype of the device on a group of volunteers, the measurement of brain activity was carried out in various states. The experimental results confirmed the stability and accuracy of the measurements, which makes the system promising for examinations that require monitoring brain activity in real time. The system has a relatively small size and is integrated with wireless technologies, which opens up opportunities for its use in portable medical devices.