BEATS: an open-source 32 channel EEG system using four ADS1299 EEG shields stacked onto a Raspberry Pi 4

Last Updated on September 17, 2024 by pg@petergamma.org

It uses a Raspberry Pi and 4 shields, each contain a ADS1299 chip:

https://scholar.google.com/scholar?hl=de&as_sdt=0%2C5&q=IEEE+SENSORS+JOURNAL%2C+VOL.+XX%2C+NO.+XX%2C+XXXX+2022+1+BEATS%3A+An+Open-Source%2C+High-Precision%2C+Multi-Channel+EEG+Acquisition+Tool+System&btnG=

It uses a Raspberry Pi and 4 shields, each contain a ADS1299 chip:

The scheme of 24-channel EEG acquisition in the daisy-chain mode. (B), (C) The front and back of the motherboard. (D), (E) The front and back of the ADC-board. (F) The picture of four ADC-boards, a motherboard and a MP plugged together.

tDS1299 chip:

This paper shows that it is possible to build a 32 channel EEG device from the ADS1299 chip:

Summary of the conclusion of the paper:

“This paper presents an open-source, high-precision, multi-
channel EEG acquisition tool system named BEATS. It
achieves similar features with other state-of-the-art implementations including cost-effective, portable, etc.
BEATS implements 32-channelEEG acquisition at a sampling rate of 4k Hz. It has a higher
channel number for the same sampling rate or a higher
sampling rate for the same channel number and can support
more channel numbers if a lower sampling rate is configured.
Third, as an open-source system, BEATS provides
complete design files and materials, which is capable of being
quickly and easily reproduced.
Besides, BEATS implements a complete system from hard-
ware to software, including PCBs used easy-to-access ma-
terials and a plug-in structure, a user-friendly GUI and a
wireless data transmission, which make it can be easily set
up. Meanwhile, it can also be able to acquire ECG, EOG,
EMG, and other signals. Due to these exceptional properties
of BEATS, it can be widely used in various research scenarios,
and is ideal for long-term daily monitoring.

Information for product sellers who do stock market speculation and scalping with products mentioned by Peter Gamma on www.petergamma.org

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