* By turning off Analog read mode: No, even after turning off Analog read mode, the results were similar, i.e., the stream was getting stopped after 3 mins for 5 mins of recording (and red light on do

i will bring this cyton SD card streaming/recording data issue to the attention of the engineers tomorrow morning.

Since Wifi Shield is no longer sold on OpenBCI website, is there another way to send data from OpenBCI Cyton board to a computer/microcontroller at sampling rate higher than 250Hz? We are doing EMG-co

William, I am not using any SD card hex decoder here.

An issue has been made in the GUI repo to re-assess the SD card functionality on the Cyton, I have just linked this forum thread to that issue. https://github.com/OpenBCI/OpenBCI_GUI/issues/893

Richard @retiutut, do you have any insights or experience on SD card not recording the interval intended?

While logging 16 channel EEG data (Cyton+Daisy) + 3 channel Analog Data (Analog read turned on) to SD card we observed the following behavior:

I am using Cyton + Daisy setup to record EEG Stream data alongside the SD Card recording.

I tried to do it but couldn't make the arduino wait the time I wanted. Can you suggest a sample code that count the number of samples and wait 10 sec, for example, and then write to SD card again. i.e

I'm only writing data to the SD card and I don't need to use the RFduino to send data to the computer. I wonder how much current does the RFduino consume and how can I turn it completely off and only

I'm only writing data to the SD card and I don't need to use the RFduino to send data to the computer. I wonder how much current does the RFduino consume and how can I turn it completely off and only

... I use 3 AAA batteries to power the device and I'm writing to the SD card and as well transmit to the computer.

I'm using Cyton board for a continuous measurement. I use 3 AAA batteries to power the device and I'm writing to the SD card and as well transmit to the computer. The new batteries only lasted 4 hours

2. What is the unit of the decimal values converted of the hex file from SD card log?

Considering about the values, since we have once source file for the log (from SD Card), and the values are pre-recorded, the conversion should provide me the same results, since it is not realtime de

I am seeing that while conversion from hex to decimal in SD Card log, there is an scale factor used.

I have two files with me, SD Card log, and converted of the same, let us take a value in SD Card log for example:

1. I just saw a repo (depricated) named: PyOpenBCI, does this python script converts the SD Card hex code to decimal values? If yes, I would really like to know on how to do it?

@retiutut, Is there any python script to do so (SD Card hex to decimal). Since direct conversion is not the actual way to do so.

the GUI also requires up to date graphics card libraries, such as OpenGL. When was your laptop manufactured? Make / model? Have you tried going to the manufacturer website to check for any graphics c