Digital Documentation ADS1299 Pin descriptions and connections ADS1299 Register descriptions and values Resources Texas Instruments: ADS1299 ADC Chip ADS1299 Datasheet ADS1299 Evaluation Board User Guide and Schematics SPI Protocol SPI Protocol in general Using SPI with Arduino Detailed SPI Documentation for Arduino (AVR is the microcontroller on Arduino) OpenBCI OpenBCI Cyton Documentation OpenBCI-Arduino Library Background Topics Data Transmission - PCM/PAM, Synchronous/Asynchronous (Only stuff before ASK, slide 23, is relevant)