Neuro Headset Server Setup

Dependencies

The following dependencies are required to use the Neuro Headset:

sudo apt-get install python-setuptools python-gevent python-dev realpath
wget https://github.com/openyou/emokit/archive/master.zip
unzip master.zip
cd emokit-master/python/
sudo python setup.py install

Running the server

To run the stand-alone server use:

$ python neurohs.py 400

the argument (e.g. 400) is the polling period in milliseconds.

If you want to log the output on a file, you can also use:

$ python neurohs.py 400 --log neurohs.log

If you want to read the data from a log file (i.e. simulation mode), you can use:

$ python neurohs.py 400 --sim neurohs.log

---

To run the server from Tango use:

$ python neurohs epoc1

The argument (e.g. epoc1) is the server name registered in Jive.

Troubleshooting

If you installed all the dependencies, everything should work.

If you see this error:

emokit-master/python$ sudo python setup.py install
Traceback (most recent call last):
  File "setup.py", line 2, in <module>
    from setuptools import setup
ImportError: No module named setuptools

you have to sudo apt-get install python-setuptools.

---

If you see this error:

emokit-master/python$ sudo python setup.py install
...
config.status: executing src commands
source/_ctypes.c:107:20: fatal error: Python.h: No such file or directory
compilation terminated.
error: Setup script exited with error: command 'i686-linux-gnu-gcc' failed with exit status 1

you have to sudo apt-get install python-dev.

---

If you see this error:

>>> headset.setup()
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/local/lib/python2.7/dist-packages/emokit-0.0.1-py2.7.egg/emokit/emotiv.py", line 353, in setup
    self.setupPosix()
  File "/usr/local/lib/python2.7/dist-packages/emokit-0.0.1-py2.7.egg/emokit/emotiv.py", line 450, in setupPosix
    setup = self.getLinuxSetup()
  File "/usr/local/lib/python2.7/dist-packages/emokit-0.0.1-py2.7.egg/emokit/emotiv.py", line 370, in getLinuxSetup
    realInputPath = check_output(["realpath", "/sys/class/hidraw/" + filename])
  File "/usr/lib/python2.7/subprocess.py", line 568, in check_output
    process = Popen(stdout=PIPE, *popenargs, **kwargs)
  File "/usr/lib/python2.7/subprocess.py", line 711, in __init__
    errread, errwrite)
  File "/usr/lib/python2.7/subprocess.py", line 1308, in _execute_child
    raise child_exception
OSError: [Errno 2] No such file or directory

you have to sudo apt-get install realpath.

---

If you see this error:

$ python neurohs.py 400
Serial: SNxxx Device: hidraw1
Serial: SNxxx Device: hidraw2 (Active)
Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/gevent/greenlet.py", line 390, in run
    result = self._run(*self.args, **self.kwargs)
  File "/usr/local/lib/python2.7/dist-packages/emokit-0.0.1-py2.7.egg/emokit/emotiv.py", line 353, in setup
    self.setupPosix()
  File "/usr/local/lib/python2.7/dist-packages/emokit-0.0.1-py2.7.egg/emokit/emotiv.py", line 453, in setupPosix
    self.hidraw = open("/dev/" + setup[1])
IOError: [Errno 13] Permission denied: '/dev/hidraw2'

you need to run sudo python neurohs.py 400.

---

If you see a similar output:

$ python neurohs.py 400
Serial: SNxxx Device: hidraw0
Serial: SNxxx Device: hidraw1 (Active)

but nothing else is printed, try to turn off the headset, wait a few seconds, and turn it on again without restarting the script.