s_arty
s_arty
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Hi William, Thank you for replying! Just FYI, I'm running 500000 baud between M4 and OBCI and still 500 sps is the limit Can WiFi Shield give 16k sps? Could I mimic WiFi Shield by another controller to achieve greater speeds?
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Winslow, Thank you for the nice tutorial! I've done something similar with OpenBCI debug firmware. There is some description of the interface: https://docs.openbci.com/docs/02Cyton/CytonSDK#channel-setting-commands The main difference is I'm usi…
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Hi guys, Just my two cents. I was not able to get seamless data out of the SD card.(even 250Hz) The problem is somewhere in implementation of SD stack. Every so often the SD card takes ~0.3 sec to record the data, which leads to the gap in the lo…
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Dear William, Thank you for your reply and I thought I resolved this, but looks like I'm lost in weeds... I took the interpret24bitAsInt32 function from http://docs.openbci.com/Hardware/03-Cyton_Data_Format and created simple sketch: p…
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Hi William, Thank you for your reply! I have a couple of more questions.. 1. Looks like we should get 250 samples per second, but all the log files have 256 samples per sec. Should I normalize the data or it's just a counter and I should …
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Thank you William, Yes, you're right it's plenty, I lost x10 as usual... Anyway, just if someone has similar question, the answer is: 128 Gb works, needs to be formatted as FAT32 (not exFat, as windows tries to format if it sees the size larger…
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Hey Jeff, Thank you for the hint! Tibor's project looks really promising, I'll take a look and I'm so excited that somebody else has done some heavy lifting You really made my day, thank you! Please, take a look at the following post here:…
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Sorry for the delay with the answer.I've seen several people confirmed this. Unfortunately, I wasn't able to store any data on SD card and created the following thread: http://openbci.com/index.php/forum/#/discussion/1744/what-s-the-maximum-siz…
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Thank you for the answer! Are there any plans to proceed with this approach? I know, Cyton has a debug mode in v3, where D11 and D12 are an external UART. This is good enough for me right now, but you're welcome to throw any suggestions my wa…
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Hi Jeff, I like your plan To be honest, I have similar plan I've received a Cyton board and trying to use it as a sensor for sleep research as well. In my case it's lucid dreaming. Luckily for me, my board has a debug mode (in v3.x.x firm…
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Hi there, people reported that this is possible, I'll try these steps asap and let you know about the result with some confidence. Thanks
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Hi Jeff, Are you trying to connect Cyton, 32 bit board? Any luck with SPI and Teensy, so far? I like this idea. Another approach would be to modify the firmware slightly to run UART on pins D11, D12 (breaks SPI, so I assume, you'll have 8 cha…