Problems saving a 12-hour recording on SD card
I am using a Cyton board to record a night of sleep onto an SD card (32 GB). However, when I set the "write on SD card" to "12 hours maximum" the resulting file (.TXT) size is about 600MB and won't open (Notepad crashes). I've also tried modifying the initialization sequence, but the issue persists. Has anyone successfully recorded and managed large files like this on an SD card? Do you have suggestions? Let me know if you need more info.
Comments
Hi Fabfes,
In general, most computer text editors (Notepad) do not handle files that are hundreds of megabytes in size. You can look over this search result to see if other text programs might work:
https://www.google.com/search?q=view+huge+text+file+on+Windows
As far as converting the sdcard hex file to CSV, see this related thread which links to a Python script. Apparently there is also a Github mod to the GUI that may eventually incorporate such a feature into the GUI Processing code. @retiutut
https://openbci.com/forum/index.php?p=/discussion/1653/script-to-convert-sd-card-file
https://github.com/roflecopter/openbci-session
https://github.com/roflecopter/openbci-session/blob/main/sd_convert.py
https://github.com/OpenBCI/OpenBCI_GUI/issues/1014
Regards, William