Vedashree
Vedashree
About
- Username
- Vedashree
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- India
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Comments
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All electrodes are placed as per standard 12 lead ecg placement. Since V1-V6 electrodes are single ended which are used with WCT (Wilson central terminal) in ADS1298R, how do I incorporate the same in ADS1299? Is connecting to SRB sufficient as sh…
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Thank you wjcroft for the reference. I have sorted the connections as below. Please check whether I can proceed .
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Thank you wjcroft. I do have Daisy board. Is there any 12 lead tutorial with Cyton+Daisy board available? It would be much helpful for me.
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@wjcroft said: Have you double-checked that your wiring setup is working correctly in terms of the ohms measured? That would imply that you temporarily disconnect the wires/connectors going to the Cyton pins, and instead connect them to a DVM ohm…
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If the EDF Browser is introducing a variation, Please check the files logged directly from OpenBCI GUI and confirm there is no difference is raw data logged. No changes were made in settings of OpenBCI application. Logged BDF file. https://drive…
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@wjcroft said: One other thing I will say is that your two graphs look remarkably identical to my eyeballs. As can be observed in both images why is there a difference in amplitude and gesture pattern? I am just not seei…
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I still didn't get why the .EDF file logged directly from the GUI showed different results from the amplitude shown in plot window of GUI in previous session.
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@wjcroft said: NO, I am telling you to OUTPUT CSV directly from the GUI. I have selected such option in GUI and output file was saved in .txt file, which I then converted to .csv (changing extension) I have attached the file. https://dr…
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Below is the .csv file I extracted from EDF Browser (Tools -> Export EDF/BDF to ASCII (CSV)) https://docs.google.com/spreadsheets/d/1tLEZozoaDGbHm-IWZlqKc-f4QfQHV71t/edit?usp=drive_link&ouid=112024296106530295103&rtpof=true&sd=true …
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I would highly suspect whatever manipulations are happening before your screenshots above showing 40 uV output. Please check the .BDF file attached from the same session logged in OpenBCI GUI. I am using EDF Browser to visualize the data and I am…
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Below I am sharing the video link for plot window for 2mVp-p, 20Hz with gain = 1 setting in OpenBCI GUI. https://drive.google.com/file/d/1F7kr2Rjwp_hG3aTlKpDKGmR7xnRVnFCG/view?usp=drive_link Below is the file that is logged from above session. …
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So, ECGP, ECGN and RLD input pins sensitivity is the reason for such behavior! Thank you wjcroft for the clarification.
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Thank you wjcroft. I will email openbci customer support. Are you seeing these same behaviors with the OpenBCI GUI? I am using OpenBCI GUI. What program is producing the screenshots you provide? As the logged data from OpenBCI is in .BDF for…
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Thank you wjcroft for the reply. I observed waveform changes in OpenBCI plot window when other person walks by the setup, even when no gesture was performed by the actual gesture performer. I wanted to know the reason for such behavior. I suspected…
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Thank you wjcroft. I want to know whether the gain applied by setting value in OpenBCI will it be applied to the actual data being logged? I have given input from Function generator (2mVp-p, 20Hz). I connected Function generator positive to IN1N, …
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Thank you wjcroft. I want to know whether the gain applied by setting value in OpenBCI will it be applied to the actual data being logged? I have given input from Function generator (2mVp-p, 20Hz). I connected Function generator positive to IN1N, …
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I wanted to check the test signal with different gain settings and observe the output. Hence the title.