He is already formatting correctly and the glitch only happens 1 out of 50 times approximately. Max is going to try tests with smaller card sizes to see if that makes any difference.

In terms of the 'empty' sd file, is the file length exactly the same as normal files, just all zeros? It's possible that if some timing related glitch is triggered, it stays busted for the entire sess

But how block write processing speed can result in totally empty sd file? Shouldn't it just result in dropped / delayed samples? In my case whole file is empty, but other ~40 nights are fine, so it lo

I think I recall seeing that there is a limitation in how fast the sd card device can process block writes. In other words a tradeoff in the block size and write speed. It may be possible that you hav

I think I recall seeing that there is a limitation in how fast the sd card device can process block writes. In other words a tradeoff in the block size and write speed. It may be possible that you hav

What's the storage capacity of the microSD cards you use?

What's the storage capacity of the microSD cards you use?

The other obvious first step would be to try with a different type of SD card, to eliminate possibility of incompatibility.

The other obvious first step would be to try with a different type of SD card, to eliminate possibility of incompatibility.

I'm using my OpenBCI on a daily basis for psg eeg sleep study for about 2 months. Almost all recordings went smoothly but 2 times i got weird sd file.

be something that wrote the data straight to SD card. Also I have no clue how to analyze the data, really.

The SDK sample rate changing commands, were only intended to be used with the OpenBCI Wifi Shield. Which is currently not listed in the Shop because some hardware mods are needed. No estimate of if or

I bought a 128 GB class 10 Extreme Pro SD Card for recording my signals in order to increase the sample rate to be able to explore another range of frequencies

Without the Wifi Shield feature, the firmware does not support 'direct' connections or storing at higher rates to sd card. Additionally with the sd card buffering must be considered and can constrain

The board itself is capable of doing this right? The issue is transmitting the data? If I connected the board directly to the dongle or saved the data on a SD card, there should be no issue?

I would like a python script to convert hexadecimal data (recorded in Cyton) recorded on an SD card to decimal.

Since the dongles are required for the ganglion card yet none are in stock, I'm assuming that a lot of indie DIY EEG manufacturers bought them up for their makes. Any idea how frequently these dongle

I also see the 'Write to SD card settings' options are include in BoardCyton.pde and ControlPanel.pde.

I understand that ControlPanel is a really big file, but this happens to be where the callback function for the SD card dropdown is, and you would connect this with the GuiSettings.pde similar to othe

If you are NOT seeing the max file duration and sd card time being saved, that means these are not currently being handled. Feel free to make your own local source code mods.