linux Processing / jssc.jar / kernel FTDI driver

Comments

• brain Canada

  March 2015 edited March 2015

  Hello @Danb
  
  Thanks for trying out my tutorial, and I’m sorry you ran into this issue. It looks to me like  that annoying jSSC dependency is acting up again. I noticed that OpenBCI has removed the prebuilt applications from the downloads page (possibly because of the issues, like the out of date jSSC library, that were turning up). What version of the processing application do you have, and where did you get it from? I’m assuming you replaced jssc.jar in the lib folder with the updated version I linked to?
  
  Also, it’s probably not something stupid you’re doing, but something unclear in my tutorial (or a change with the application) that’s causing the issue. In any case, I’ll do my best to help troubleshoot the problem.
  
  Cheers,
  Omphalosskeptic
  
• Danb

  March 2015

  I'm using processing 2.2.1.  I did replace the jssc.jar with the updated version you linked to.  I didn't download processing initially but I just tried it and it didn't help.  I still don't know how to launch it from processing though?  I didn't know you needed to run it from processing.  I also tried swapping the jssc 2.8 and it didn't work either.  This is getting confusing...
• brain Canada

  March 2015 edited March 2015

  @Danb
  
  I've uploaded a zipped version of the prebuilt app I've been running on my machine, with the updated jSSC library. I've tested it on another Ubuntu machine, too, and it ran and talked to my OpenBCI without any trouble. This seems like it should be the quickest route to a working version (since I only got the prepacked app running, which is no longer available for download on OpenBCI's site, not the processing sketch that's still up there).
  
  It should work if you download the .zip I uploaded of my working version (link expires in two days), then unzip, enter the directory, and run the OpenBCI app with this command:

  unzip ~/Downloads/application.linux64.zip && cd application.linux64_stable && sudo bash OpenBCI_GUI

  Let me know if this works!
  
  
  
• Danb

  March 2015

  It worked, thanks!
• Danb

  March 2015

  Also, in Ubuntu 14 you can run it straight from the GUI if you open up Nautilus and select Edit, then Preferences, then Behavior, then select Run executable files when they are opened.  By enabling this you don't have to use the terminal to run the program.  
• Danb

  March 2015

  @brain-

  
  

  Do you thing I could get that file again?  The link has expired and I need it once more...long story lol. 
• wjcroft Mount Shasta, CA

  March 2015

  Could it be placed on Google Drive or Dropbox, so that it does not expire in two days?
  
• brain Canada

  March 2015 edited March 2015

  @wjcroft Good point. I have added it to on my GitHub Pages assets repo: http://omphalosskeptic.github.io/assets/misc/application.linux64.zip
  
  Now it won’t self destruct when people still need it
  
• Eitan

  April 2015 edited April 2015

  Hi 

  
  

  I am new to openbci and trying it for the first time.

  I used the tutorial and got to the "select LIVE from OpenBci" section. 

  I selected port "/dev/ttyUSB0"" hit start system, then the screen froze, I am suspecting the ftdi drivers and tried to install them again and again.

  
  

  Please help

  
  

  Regards

  Eitan
• wjcroft Mount Shasta, CA

  April 2015

  Hi @Eitan ,
  
  I merged your question into this previous Linux thread. See some of the previous suggestions. Also checkout this related Linux thread,
  
  http://openbci.com/forum/index.php?p=/discussion/224/openbci-gui-linux64-needs-jssc-jar-update
  
  William
  
  
• arphunix

  May 2015

  Hi, I have had some problems with the OpenBCI_GUI software on a linux system (Ubuntu 14.04 64bits), and after some searches I don't know how to fix them.
  
  First of all, I can't install the drivers needed to connect with the USB according those guides:
  
  https://github.com/OpenBCI/OpenBCI_Processing
  http://www.autodidacts.io/getting-started-with-openbci-a-tutorial-on-testing-troubleshooting-and-recording-ekg/#gettingtheopenbcisoftwareworkingonlinux
  
  The error is related with some files that are created after compile the kernel, that can be obtained from a gzip file in the linux source root, but I am working in a University computer and, although I have administrator privilegies, I don't want to risk to touch anything related with the kernel. Without the drivers, the software recognize the USB (ttyUSB0) but it crash after execute the live mode.
  
  I am running the Processing aplication from the source code of the git.
  
  
  
• wjcroft Mount Shasta, CA

  May 2015

  @arphunix , hi.
  
  I merged your question into this existing thread, so linux users can share expertise. Did you try using the zip that @brain created? My impression is that the correct FTDI driver is already installed in Ubuntu. So if you have installed a driver file from the FTDI site, you may need to roll that back. The dates shown on the FTDI site are from 2009 for Linux, so that looks ancient.
  
  You also mention compiling the kernel, can you just use the stock Ubuntu? I think @brain may have some comments as well.
  
  Thanks, William
  
• arphunix

  May 2015 edited May 2015

  Ok, I'll try to run it the next Monday at the university with the @brain zip.
  
  I mentioned compiling the kernel because of this thread:
  
  

  http://www.linuxquestions.org/questions/linux-newbie-8/problem-installing-driver-for-ftdi-converter-cable-on-my-linux-system-856906/
  

  
  But I think the linux64.zip will be enough to run it
  
  Thanks