P300_MAN
P300_MAN
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Comments
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There is no com port once I plug the dongle. Can I do re flash?
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Exactly, The channel is difference. I used the new dongle with the new board, and old dongle with the old board. So, what I can do for solving this problem?
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I seperately used it. not simultaneously. and I used Window OS. Both boards are 8bit arduino. I can say that something wrong because eveything in my setup was same as the first board. But the new board had that problem. Thanks
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For your comments. Next time, I will post my code on Github . Thank you Chip
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Sorry for confusing Chip. I really used 1-30Hz. I did not modified title in that time I captured images. I modified as same as I did in notch 50Hz. //loop over all of the pre-defined filter types for (int Ifilt=0;Ifilt<n_filt;Ifilt++)…
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Hi Chip, I modified to be band pass 1 - 30 Hz. I got NaN as attached picture ? Any ideas? //butter(2,[1 30]/(250/2)); %bandpass filter b = new double[] { 8.6359264874329e-002, 0.0f, -1.72718529748659e-001, 0.0f, 8.635…
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Dear William, Thank you very much for good explaination. I will try to implement DC filter on matlab using this raw data. Thank you for good reference. P.S. Actually, I had learned to modify built-in filtered already. I would like to make sure t…
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Dear William BTW, Your suggestion about latency setting was quite useful. I will continue working . You are right. I may not have problem with .04 seconds Thank you very much
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Dear William, Trigger is just only time stamp that let me know where is the starting point of each stimulation onset. To find P300 response, we need to do ensemble averaging. That's why trigger point is important. Example, You would like t…
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Dear William, Yes, modified arduino code is another way. That why I asked for the latest firmware version (.ino) in the previous post. However, it's better to send the trigger signal from visual stimulation itself without any additional wire or s…
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These plotted from sam data. I extended period of plotting. Even though no UDP code, you can see delay on Chip's original code. This make me think that delay came from Serial event. Thank you
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Dear William, The red line show examples of time stamps of trigger data based on UDP events. It seems that delay was not from UDP event. Is it from serial comm ?????
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I added the code below into openbciGUI program. I think that oscEvent from oscP5 library might interrupt serial event. void oscEvent(OscMessage theOscMessage) { incomingMouseX = theOscMessage.get(idxtrigger).intValue(); // print out th…
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Dear William, Thank you for suggestions. Actually, my research is quite similar to P300 speller system: But, one electrode channel is enough for my research. The only way that I can do is solving delay of UDP. Now, it might be not…
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Dear William, Those graphs in my last comments were plotted without any UDP code. I used the original program from openBCI website. Here, I attached graph when my program was running together with OpenBCIGUI (including UDP code). Maximu…
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Dear all, Where can I find the latest Arduino program (.ino) which was flashed on my openBCI board ? I found only .cpp and .h inside OpenBCI_8bit-master folder which dowloaded from openbci website (latest version). Thank you
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Hi, I attached results in one round counter packet at different latecy timer. For 16 ms, you can see twice pauses in every 0-255 counter packet. Here, no UDP code anymore. This was original program from openBCI website. Thank you
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Dear all, Thank you for discussion! Here, I used the latest version of GUI from openbci website. I added this in to your program. Highlight only. public void writeRawData_dataPacket(DataPacket_ADS1299 data, float scale_to_uV, float scale_fo…
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Thank you everyone for useful information!, Dear wjcroft, Sorry, I misunderstood. I never try built-in bluetooth. Dear chip, You wrote that P is lower one here. It's better to change to be correct one; otherwise new person might be conf…
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Dear wjcroft , Regarding to your commments, I tried BLE, it's fine. About SRB1 , default is "no". It's mean nothing on SRB port (I connected to uppper one on board). BTW, What's is SRB1 and SRB2? Thank you
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Hi Chip, I got Alpha wave!! It might be better if we can have short introduction about GUI. Here, my problem was solved by only selecting SRB1 from no to yes. BTW, I found a bug . Every channel is automatically activated whenever I set…
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Hi, Chip, I got EMG by enable SRB1 from no to yes . What's SRB1 on your GUI ???? FFT show raw data right? Is it not filtered data as show time domain ? Thank you
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Hi, Chip About gain and turn off. I had already tried. About try to measure other biosignal. I had already tried EMG. The signal was railed after I connected Bias line. BTW, What's difference between BLE and PC switches on board? Thank…
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Thank you for proof that Chip!
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Hi chip, It might be other problems on my setup. You can see in other dicussion topics which were posted by me. Help me please. Thank you in advance! I hope to see EEG data soon!