One of the nice things about writing the data in blocks is that once the block is written, it is on the card. In other words, if you create a file that allocates 30 minutes of record time and then sto

Is it possible to disconnect the connection between dongle and Cyton when saving to SD card and reconnect it later? I would like to record my sleep without a PC.

The Daisy might add say 20 milliamps. Your SD card usage is going to cause very short barely observable increase in milliamps during buffer writes. These writes are not continuous but only when the b

data with the Cyton +Daisy board and 400GB micro SD card even though it is emphatically stated in the description of the 6600 mAh battery that it does not tolerate a sustained load of more than 1.3 a

The only way those artifacts disappear is NOT USING radios. I mean, just recording blind and then picking up the signal from SD card.

It raises again the related issue of having a high capacity Lithium ion battery close to patients in a hospital ward while their EEG data are being streamed and stored by a micro SD card that would be

I recently tried to find out which is the easiest way to connect an EEG cap to a PC. On my search I found the method of Scott W Harden to connect a ECG sensor via a sound card to a PC:

If you use the "Google Advanced Search" box at upper right, you can find some previous threads on high speed SD card questions and answers. My recollection is that the current Cyton firmware

The idea is to use OSC to stream 2 channels of EEG to Puredata and then out again via our sound card as an analog (audio) signal.

@wjcroft Thanks again, William. Your reply is useful as before. From the point of view of conserving the Cyton +Daisy Board battery power, it would make sense to use a USB cable for transmission of da

It just occurred to me to ask whether the EEG signals from the OpenBCI headband and Cyton +Daisy would not drop significantly over 32 feet, in addition to being distorted by noise since the USB cables

@wjcroft Yes, I am asking about the Cyton +Daisy board. My overriding concern is that if I purchased just the Cyton +Daisy without the Wifi Shield, it would not serve to transmit EEG data from an Open

I assume you are asking about the Cyton? You can use the SD card without involving the Wifi Shield. Ganglion does not support SD card. Do you already have an OpenBCI product?

for streaming and recording EEG data to a micro SD card without the Wifi Shield?

The Cyton sample rate is indeed 250 Hz. What are you seeing in the SD card data that leads you to assume that the rate is 256 Hz? You may be seeing the one byte sample counter, which does cycle thro

If the Sampling rate is set to 250 SPS then why do we get 256 samples in the SD card data ? I need to design my Filter and its important to know what is the exact sampling rate ?

Here are both open and closed GUI issues that show up on a search for "SD card". Most of these are indeed closed and resolved. But it's possible the customer's experience of his issue is rel

trying to save a session to the SD disk. Every time I click on "Start System" GUI times out, despite following the SD card tutorial.

In case if the dongle is not at all working, but the Cyton board is functioning. How do we check that? Can we use the SD card to record the signal without depending upon the dongle? Or is there any ot

Is it possible you have a defective SD card? What is the capacity?