running GUI on Raspberry Pi 3

f10-forever · February 2017

Hi,

I have 32 bit board and I want to use it in RPi3. However, I am confused about downloading which gui of OpenBCI and how to start up it. Can anyone please inform me about those issues (by telling the steps that I should follow

) Because I had downloaded every type of GUI however I cannot start up all of them. So I need some help

Thank you very much.

wjcroft · February 2017

This is the GUI you want,

https://github.com/OpenBCI/OpenBCI_GUI

This is a general how to build document, but adjust to fit locations above.

https://github.com/OpenBCI/OpenBCI_Processing

f10-forever · February 2017

Hi, I had downloaded the GUI that you said however when I run it I got those red errors while the dongle is trying to conncet my 32 bit board. I am running the GUI from Processing. How can I solve this problem and make dongle to connect my board on RPi3 and see my EEG signals?

wjcroft · February 2017

It could be a permissions issue. Try running app as superuser (root), with sudo, or "sudo bash" to get a root shell.

http://openbci.com/forum/index.php?p=/discussion/988/gui-requires-running-with-sudo-to-see-ganglion-bluetooth-on-ubuntu-linux

It should also be possible to adjust the OS permissions somewhere, let us know if you find a way to run without root.

You can also log a comment on the Github issue link mentioned in that thread above.

f10-forever · March 2017

We are currently running OpenBCI on Raspberry. Previously OpenBCI GUI was giving a java exception "Waited 100ms". We solved this issue by deleting all images from the GUI. Now when we execute the GUI, it gives following error after the first loading screen.

OpenBCI_GUI.pde: attempting to open serial/COM port for data output = /dev/tty.usbmodem1411

OpenBCI_GUI.pde: could not open /dev/tty.usbmodem1411

attempting to load images for presentation...

images loaded

DONE loading images!

java.net.ConnectException: Connection refused (Connection refused)

at java.net.PlainSocketImpl.socketConnect(Native Method)

at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)

at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)

at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)

at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)

at java.net.Socket.connect(Socket.java:589)

at java.net.Socket.connect(Socket.java:538)

at java.net.Socket.<init>(Socket.java:434)

at java.net.Socket.<init>(Socket.java:211)

at processing.net.Client.<init>(Unknown Source)

at OpenBCI_GUI$OpenBCI_Ganglion.startTCPClient(OpenBCI_GUI.java:8485)

at OpenBCI_GUI$OpenBCI_Ganglion.<init>(OpenBCI_GUI.java:8445)

at OpenBCI_GUI.systemUpdate(OpenBCI_GUI.java:776)

at OpenBCI_GUI.draw(OpenBCI_GUI.java:420)

at processing.core.PApplet.handleDraw(PApplet.java:2418)

at processing.opengl.PSurfaceJOGL$DrawListener.display(PSurfaceJOGL.java:907)

at jogamp.opengl.GLDrawableHelper.displayImpl(GLDrawableHelper.java:692)

at jogamp.opengl.GLDrawableHelper.display(GLDrawableHelper.java:674)

at jogamp.opengl.GLAutoDrawableBase$2.run(GLAutoDrawableBase.java:443)

at jogamp.opengl.GLDrawableHelper.invokeGLImpl(GLDrawableHelper.java:1293)

at jogamp.opengl.GLDrawableHelper.invokeGL(GLDrawableHelper.java:1147)

at com.jogamp.newt.opengl.GLWindow.display(GLWindow.java:759)

at com.jogamp.opengl.util.AWTAnimatorImpl.display(AWTAnimatorImpl.java:81)

at com.jogamp.opengl.util.AnimatorBase.display(AnimatorBase.java:452)

at com.jogamp.opengl.util.FPSAnimator$MainTask.run(FPSAnimator.java:178)

at java.util.TimerThread.mainLoop(Timer.java:555)

at java.util.TimerThread.run(Timer.java:505)

We decided to ignore this error and continue. We configured as following picture.

After pressing START SYSTEM button, the following text appears. But system does not connect to the OpenBCI board. Have you got any suggestions ? This is our senior project and we are short on time. Any help and suggestion would be appreciated.

Instantiating Ganglion object...

OpenBCI_GUI: mousePressed: mouse pressed

CPmousePressed

click

OpenBCI_GUI: mousePressed: mouse pressed

CPmousePressed

click

OpenBCI_GUI: mousePressed: mouse pressed

CPmousePressed

ControlPanel — port is open: false

=================================================

|| INITIALIZING SYSTEM ||

=================================================

OpenBCI_GUI: initSystem: -- Init 0 -- 22596

timeOfInit = 22596

OpenBCI_GUI: initSystem: Preparing data variables...

OpenBCI_GUI: initSystem: -- Init 1 -- 22611

Init FFT Buff – 0

Init FFT Buff – 1

Init FFT Buff – 2

Init FFT Buff – 3

Init FFT Buff – 4

Init FFT Buff – 5

Init FFT Buff – 6

Init FFT Buff – 7

OpenBCI_GUI: initSystem: -- Init 2 -- 22641

OpenBCI_ADS1299: prefered_datamode = 1, nValuesPerPacket = 8

OpenBCI_ADS1299: a

nEEGValuesPerPacket = 8

nEEGValuesPerOpenBCI = 8

(2) nEEGValuesPerPacket = 8

(2) nEEGValuesPerOpenBCI = 8

missedDataPacket.values.length = 8

OpenBCI_ADS1299: b

OpenBCI_ADS1299: i = 22643

OpenBCI_ADS1299: openSerialPort: attempting to open serial port: /dev/ttyUSB0

OpenBCI_ADS1299: openSerialPort: port is open (t)? ... true

OpenBCI_ADS1299: j = 22650

OpenBCI_GUI: initSystem: -- Init 3 -- 22650

3a -- 22650

3b -- 22650

null