drivas
drivas
About
- Username
- drivas
- Location
- Montreal CA
- Joined
- Visits
- 38
- Last Active
- Roles
- Member
- Location
- Montreal CA
Comments
-
Hi! I just wanted to chime in that I have noted the exact same weird pattern. (Cyton + Daisy over BLE). It happens randomly after variable recording time. I was not streaming through LSL. I agree this is definitely a hardware problem, it looks li…
-
Hi @felipev! I have not tested OpenBCI's BDF output since it was broken when I started working with OpenBCI around last year, but if it now outputs correctly formatted BDF, then MNE's mne.io.read_raw_bdf called with the path to your data file sho…
-
Got it! the docs also say to make sure the grounds are in common, if I understand correctly, this means that I should power the FTDI friend with the same battery used to power the Cyton? or the reverse, find a way to power to board with my computer?
-
I will try to get a hold of such USB to serial board, thank you for your precisions!
-
Hi @retiutut! I have, after much effort, gotten the hub running under the vscode debugger. This was hard due to the very old versions of electron and other packages causing compilation issues of the serialport npm package. Most of the dependencies o…
-
@retiutut thank you for your support! I use VScode as well, so I should be able to get things working fast, although I have much less experience with NodeJS than with my current Python solution. It would be a relief to get the original GUI working w…
-
Hi @retiutut! I have tried the latest dev versions of the GUI and Hub v2.1.0 via UDPx3 and It's very encouraging that I seem to get some kind of connection, but pressing "Start Stream" invariably results in Hub: processCommand: ERROR_COMMAND_NOT_…
-
I could not say since I have been unable to ever connect to the shield using the Processing Gui, thus I have never had the chance to try seeing impedance through the Hub. My issue is with the underlying http route /command and the effect on the live…
-
Thank you for your support! All of my tests are using WiFi direct mode (computer connecting to the WiFi network broadcasted by the shield through a USB WiFi adapter). I had assumed any kind of networking would not work on my workstation due to th…
-
William, Thank for your link to the paper. Despite your latest fixes, I am still unable to run your GUI with the shield on my laptop for testing, and for our real uses in a corporate networking environment, (with different network interfaces assi…
-
Hum interesting, the retransmission would explain the scrambling. Is there a way to see which Bluetooth channels are less prone to noise? I will try running tests in a cleaner environment, should I keep you updated on this thread or on a github iss…
-
I probably should make a different post just about that issue, but these are not recent phenomena, I have been noticing some "scrambling" of a few samples here and there for the past few months (Cyton with firmware 3.1.1). In this 8 min recording, a…
-
Hi @alwayswearshats, I am using the RF dongle, but we will be changing that for the WiFi shield soon due to sampling rate necessities. @wjcroft thank you so much for providing a reference. I think less than 5kohms is achievable but it takes a lot o…
-
Ok got it, thank you! do you have a recommendation of an acceptable impedance range ?
-
Interesting, I did not know the impedance difference could have such an effect. Indeed, impedance checks reveal that O1 and O2 have the worst impedance at around 8000 Ohms. Would I be correct in saying that having different ranges of impedances amon…