This is a modified library for the OpenBCI 32bit Board firmware which adds additional SD card functionality.
Main purpose is to improve experience while using OpenBCI Cyton as a part of home based PSG sleep research. You can read more about my quantified self project and especially OpenBCI experience here .
- short (50ms) flashing LED during writing, every 3 seconds. Source
- increased sampling rate. Source
- bugfixes. Source
- it works for both Cyton and Cyton+Daisy
- i use it on a daily basis with 3 different Cyton/Cyton+Daisy and it work stable, rarely i'm getting empty sd files for unknown reason (once 50-60 recordings). Read more
TODO:
- add external trigger to stard sd writing with increased sampling rate and hardcoded config, without using a dongle at all
Instructions:
- Follow OpenBCI Cyton official firmware upgrade instructions
- The only diffrence is that you clone modded OpenBCI 32bit Library from this repo instead of default OpenBCI_32bit_Library
Important notice:
- You do flashing at your own risk
- If something goes wrong you can potentially flash stock firmware back if hardware is not faulty.
- I dont take any responsibility for potential damage, firmware provided as is.