tiger-cheng
tiger-cheng
About
- Username
- tiger-cheng
- Joined
- Visits
- 18
- Last Active
- Roles
- Member
Comments
-
When I use "ourBoard.impedanceTestChannels(['n','N','n','n','n','n','n','n']).catch(err => console.log(err));" it shows “Array length mismatch, should have 16 but array has length 8”
-
And, I found that the biggest value of sampleNumber is 127. But it should be 255 isn't it?
-
@wjroft The RAIL issue is still there in the old board. I just replace it with a new one. Maybe it's the hardware problem. I am not using Daisy, its just the default 8 channel board.
-
We change a board and finally the data turns into normal range. But new problem occured: when I use OpenBCI_Node_SDK, the board is 8 channels, but when I use "ourBoard.numberOfChannels()" , it shows "16".
-
Could you tell me the mechanism of showing railed? 8 channels tend to turn into railed altogether, even some channel show the right wave shape after "railed"
-
We use the SRB2 and BIAS (bottom) connected to left ear and right ear, and N1-N8 connect to 8 different brain zone (with spring electrode). sometimes all just work, but suddenly, all channel become railed.
-
I have the cup electrodes and I test every channel one by one, they are all about 70uV. And I used MARK_III_NOVA. both SRB2 and Bias is connected to my ear lobe. What I am wondering most is that why all 8 channels share the one wave shape.