Cyton OpenBCI_Python signal acquisition, appears noisy, warning messages...

vitor_martinsb · November 2018

Hello there,

I developed a program using python to get the signal with the board cyton and 8 channels. The code is running well, but some warnings appears on the console and I don't know what's the meanning. Using the plot command, I saw all the signals for each channel, and doesn't look right too. Somebody could help me?

Warnings:

Warning: Skipped 145 bytes before start found

Warning: Skipped 1 bytes before start found

Warning: Skipped 3 bytes before start found

Warning: ID:<97> <Unexpected END_BYTE found <88> instead of <192>

Warning: Skipped 26 bytes before start found

Signals:

1 2

3 4

5 6

7 8

wjcroft · November 2018

Vitor, hi.

How do your EEG signals look, all 8 channels, when you run the OpenBCI_GUI?

Another approach that is possible, is to use the Networking Widget in the OpenBCI_GUI, to create a LabStreamingLayer (LSL) stream. Then consume that stream with the corresponding Python functions,

https://github.com/sccn/labstreaminglayer/wiki

https://github.com/sccn/labstreaminglayer/wiki/ExampleCode

Regards,

William

wjcroft · November 2018

Also mention your hardware platform, and operating system.

vitor_martinsb · December 2018

I am using the raspberry pi (SO -> raspbian), I read the labstreaminglayer, I will try to use to saw the signal, I hope it works with ARM architecture.

wjcroft · December 2018

"How do your EEG signals look, all 8 channels, when you run the OpenBCI_GUI?"

For example, on a laptop.

Cyton OpenBCI_Python signal acquisition, appears noisy, warning messages...

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