ildaron / ironbci

Open-Source Brain-Computer Interface, ADS1299 and STM32

Brain-Computer Interface ironbci

all updates here https://pieeg.com/

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It is not medical device!!! And can not be used for any medical purposes!!!

ADS1299 and STM32F407VE

• How it Works
• Device pinout
• Configuration of control registers
• Description of code ADS_1299.c
• STM32 programming
• Hardware and Signal processing demonstrations
• Citation
• Contacts

GNU license

How it Works

Gerbers files for PCB boards.
Hex file can be uploaded to STM32F407VE by ST-LINK V2 RST
Connection:
- RST
- TCK
- gnd
- TMS

2. General pin information about ADS1299 signals

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SPI2 for communicate with ADS1299
UAART4 for send data by HC-12
2.1.DRDY output - high when conversion starts
2.2 Two ways to read data:
- RDATA - continuous read command;
- SDATA - on request.
2.3. The amount of input data - 24 * 8 = 192 bits + 24 status bits, a total - 216 bits

3. Configuration of control registers

Three bytes of register configuration
0b11010110
0b11010100 0b11100000

4. Description of code ADS_1299.c

Data transfer - "s", ends - "p"
Serial with baud rate - 115200.

Hardware demonstrations

Signal processing by brainflov via timeflux (https://timeflux.io/)

6. Citation

Rakhmatulin, I., Parfenov, A., Traylor, Z. et al. Low-cost brain computer interface for everyday use. Exp Brain Res (2021). https://doi.org/10.1007/s00221-021-06231-4

7. Contacts

[email protected]
https://pieeg.com/