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Topic: OpenBCI Warning - data continuity lost. Why happen it?
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joe



Joined: May 7, 2019
Posts: 4

PostPosted: May 7, 2019 10:22 AM    Post subject: OpenBCI Warning - data continuity lost. Why happen it?

Dear all

I often receive this warning while using the cyton board.
When it happens, the EEG signal behaves in a strange way, the received data has a very high amplitude and it is distorted

The video below shows it, for examples see what happens at second 13 and 15.

https://www.screencast.com/t/sxMLYWNe

Can anybody help me?
ps. I use HC-05 bluetooth instead RFduino. Could it have anything to do with it?
jarek



Joined: Oct 22, 2007
Posts: 650

PostPosted: May 7, 2019 10:37 AM    Post subject:

Yes, your bluetooth dongle is not able to communicate with the openbci board for some reason. Maybe try from shorter distance.

When you see a message like "data continuity lost" you can't expect to receive good data. You must make sure this doesn't happen.
joe



Joined: May 7, 2019
Posts: 4

PostPosted: May 8, 2019 4:41 PM    Post subject:

Thank you, Jarek!

Indeed when I use wired usb that problem do not happen.
Now, I need to try wireless. They are helping me in the openbci forum.
https://openbci.com/forum/index.php?p=/discussion/2117/eeg-data-distortion-using-hc-05-bluetooth#latest
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