A fix for the impedance issue is forthcoming shortly. Sorry for the delay in resolving this.

A fix for the impedance issue is forthcoming shortly. Sorry for the delay in resolving this.

A fix for the impedance issue is forthcoming shortly. Sorry for the delay in resolving this.

Hi @gilad, a fix for the impedance issue is forthcoming shortly. Sorry for the delay in resolving this.

Torsten, great news. Philip just found the version of the GUI that introduced the impedance issue. See the Github issue link above. A fix to latest GUI should be forthcoming. There is also the option

https://openbci-stream.readthedocs.io/en/latest/notebooks/A2-electrodes_impedance.html

No, the question is, does the current Impedance Widget in the GUI operate exactly the same as the (previous GUI versions) 'ohm' buttons that were present in the left part of each channel in the Time S

2: The software makes the hardware have settings so that IN1P-IN8P are not bussed together to SRB2 when performing impedance measurements

I don't understand the current situation with the Hardware Settings that the Impedance Widget is using. I was under the impression that everything worked fine with the older impedance 'buttons' (on Ti

I started doing that, and decided to go back to doing exactly the same as explained in the EEG headband kit guide, in stead of the setup I was using. This gave lower impedances. After a few tests I fo

Also, I think that it does not matter for the impedance measurement what the setting shown in the picture are, because they are back to the default after the impedance measurement. I just tested (pins

I have been working with the CYTON board for a little while, but do not get impedances lower than 500 kOhm. Initially I thought there was a very large resistor in series for each channel, but I found

The advantage of any wet based system is that the skin impedance is much lower than with passive dry electrodes. This boosts signal amplitude.

susceptible to noise because of the higher skin impedance. Try a low impedance electrode such as paste or gel or saline, etc.

Regarding the impedance question, it is never recommended to use channels that are unterminated at the subject. You need all three leads connected: channel, reference, and ground (Bias). Otherwise you

I'm measuring impedances using the Cyton Signal widget in the GUI.

I'm not using the GUI for my measurements, I calculate the impedance from the voltage measurements.

I'm not using the GUI for my measurements, I calculate the impedance from the voltage measurements. The voltage itself is changing for some reason, and it changes suddenly after being ok for a few hou

If you mimicked (in Brainflow) the impedance code (hardware setting command) sent by the GUI, you may be seeing the bug. It is expected a new GUI version (reverting to previous impedance mode setting

I coded my Cyton board to run continuous impedance measurements and connected resistors to check the performance. For a few hours everything run smoothly and the impedance measurements were constant.