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Low-Cost and Open-Source 32-channel EEG Brain–Computer Interface (BCI)
IronBCI-32 is a 32-channel, 24-bit EEG open-source development kit
ironbci-32 integrates four 8-channel AD7771 analog-to-digital converters (ADCs), each with ultra-low-noise sources, ensuring highly accurate signal capture.
At its core is the STM32H7 ARM Cortex-M7 microcontroller
Integrated to open-source Brainflow Library
Source GitHub
Recommended with wet Electrodes (Ag/AgCl), electrodes connector - 2.54 mm.
Data Transfer - via Serial Port
Firmware is optimized for 512 SPS per channel when running all 32 channels simultaneously
Alpha rhythm test (eyes closed and open)
Electrodes Ag/AgCl. With eyes closed and eyes open
Raw data, 250 samples per second