OpenBCI_GUI: Java in Processing / Eclipse, Sublime IDEs / BLE

Comments

• fahad Pakistan

  May 2015 edited May 2015

  [image] JAVA (TM) Platform SE Binary HAs Stop Working...?

  
  

  Why this error occurs while i run the openBci Gui .pde  file
  

  
  

  please help Us
• wjcroft Mount Shasta, CA

  May 2015

  @fahad , the image you included in your post is not coming through. Can you edit your post and link to a site with the image, such as Google Drive? Have you tried uninstalling and reinstalling your Java? Does OpenBCI_GUI run on your other laptops? If so, then you need to clean up the machine with the broken Java. Please state your OS version.
  
  William
  
• fahad Pakistan

  May 2015 edited May 2015

  Thank You But Now I want to know that can i develop the same Open Bci Gui Application with same source code with some modification in JAVA Eclipse(IDE).
• wjcroft Mount Shasta, CA

  May 2015

  The OpenBCI_GUI .pde files are intended for the Processing Development Environment. So you need the complete Processing environment to run them. HOWEVER, the Processing source code inside each .pde is derived from Java. So you should be able to do some conversion.
  
  https://www.google.com/search?q=convert+processing+to+java
  
  Is there some reason that you absolutely require native Java and the Eclipse IDE? Otherwise it would be best to stick with Processing. The search link above may give some clues about how hard conversion is.
  
  
• fahad Pakistan

  May 2015 edited May 2015

  I Want to Modify the Application any other software completed compatible with Openbci Board Similar to processing......?

  
  

  Are Processing Development is Different From Java ?
• wjcroft Mount Shasta, CA

  May 2015

  You can use Java constructs inside of Processing programs.
  
  http://stackoverflow.com/questions/4227177/processing-vs-plain-java
  
  LabStreamingLayer has a Java library, as well as many other languages,
  
  http://code.google.com/p/labstreaminglayer/wiki/ExampleCode
  
  See our thread on LSL, you need to run the Python app and it's plugin.
  
  http://www.openbci.com/forum/index.php?p=/discussion/334/labstreaminglayer-into-bcilab-eeglab-matlab
  
  
  
• fahad Pakistan

  May 2015

  So where is the main function in openbci program ?
• wjcroft Mount Shasta, CA

  May 2015

  See setup() and draw() in OpenBCI_GUI.pde.

  
  

  https://processing.org/reference/
  

  https://processing.org/examples/functions.html
  

  
  

  https://github.com/OpenBCI/OpenBCI_Processing/tree/master/OpenBCI_GUI
  

  
  

  William

  
  

  
  
• Conor Russomanno

  May 2015

  Hi Fahad,

  
  

  Processing runs setup() one time at the start of the application, then:

  
  

  draw() happens repeatedly at the application frame rate

  
  

  systemUpdate() — called within draw() — handles updating all of the system data / variables

  systemDraw() — also called within draw() but after systemUpdate() — passes data and variables around to sub-classes for rendering graphics in the GUI interface

  
  

  Check out: the OpenBCI_GUI.pde file: https://github.com/OpenBCI/OpenBCI_Processing/blob/master/OpenBCI_GUI/OpenBCI_GUI.pde

  
  

  Processing is a Java Framework. So you should be able to run Processing code from within Eclipse if you choose to. I like to work in Sublime when I'm doing bigger code modifications. Check out:

  - Processing in Eclipse

  - Processing in Sublime

  
  

  Good luck.

  
  Conor
• fahad Pakistan

  May 2015

  Thank You

  Now I have a question that.

  
  

  can i send data directly from openBci board to my laptop via bluetooth without using the  USB Dongle.?
  
• wjcroft Mount Shasta, CA

  May 2015 edited May 2015

  Fahad, the short answer is NO, you need to use the dongle.
  
  The RFduino modules can only run two versions of 'Bluetooth', BLE Bluetooth Low Energy, which is very slow; and GZLL, Gazelle, which is a proprietary Nordic protocol not available on other Bluetooth manufacturers. We use the GZLL for speed. See some of these other threads for more details,
  
  http://docs.openbci.com/software/03-OpenBCI_BLE
  
  http://www.openbci.com/forum/index.php?p=/discussion/171/dongle-necessary-for-devices-that-have-bluetooth
  
  http://www.openbci.com/forum/index.php?p=/discussion/257/ble-and-openbci
  
  http://www.openbci.com/forum/index.php?p=/discussion/94/using-dpcm-to-save-bandwith
  
  If you feel up to it, you could yourself implement some version of BLE. But will need to adapt to the speed constraints.