Design of portable EEG signal acquisition hardware system based on ADS1299

Abstract

In this paper, a portable EEG detection hardware system based on ADS1299 is designed. The hardware system mainly integrates the analog front-end chip ADS1299 to collect EEG signals and the STM32 main control chip to process EEG signals, and then transmit the data to the host computer through the integrated Bluetooth low energy chip, and use the host computer to process and analyze the EEG signals. The volume of the system meets the size requirements of portable EEG acquisition devices on the market, and can be directly connected to dry contact points, unlike traditional medical wet sensors that require conductive glue. With 8-channel acquisition and processing capability, low cost and low power consumption, it is suitable for portable consumer products and other applications.