I am having some trouble using my Cedrus RB-730 within a python program written with the PsychoPy library. I just need to record the exact time an observer makes a response on the response pad. Has anyone out there successfully done anything like that?
Here is a sample error I get from the python command line:
>>>>from psychopy import serial
>>>>from struct import unpack
Traceback (most recent call last):
File “<stdin>”, line 1, in ?
File “/Library/Frameworks/Python.framework/Versions/2.4/lib/python2.4/site-packages/psychopy/serial/serialutil.py”, line 142, in init
File “/Library/Frameworks/Python.framework/Versions/2.4/lib/python2.4/site-packages/psychopy/serial/serialposix.py”, line 146, in open
raise SerialException(“Could not open port: %s” % msg)
psychopy.serial.serialutil.SerialException: Could not open port: [Errno 2] No such file or directory: ‘/dev/cuaa0’
University of Sydney