India's First Open-Source 32-Channel EEG Board from 2015 Now Publicly Available

Soul Scientific, an Indian hardware firm, has open-sourced Adam-EEG, a 32-channel EEG acquisition board originally designed in 2015 using EAGLE CAD software. The board uses four Texas Instruments ADS1299 analog front-end chips daisy-chained over a single SPI bus to deliver 32 fully simultaneous EEG channels without any multiplexing. Two ATmega328 microcontrollers handle processing, while an onboard microSD socket enables standalone data logging without requiring a connected PC. Released under the Apache 2.0 license, the project aims to democratize access to research-grade EEG hardware, which typically costs tens of thousands of dollars and remains locked behind proprietary software. The full schematics and board files are now publicly available, allowing researchers and hobbyists to study, replicate, and build upon the design freely.