cboulay
commented
8 years ago Here is a super simple Python script to look at what streams are on the network and, for a particular stream with name assigned to the myStreamName variable, print how many samples are in the latest chunk of data.
import time, pylsl
contResolver = pylsl.ContinuousResolver()
inlet = None
myStreamName = 'ActiChamp-'
while True:
streams = contResolver.results()
stream_names = [si.name() for si in streams]
print(stream_names)
if myStreamName in stream_names and inlet is None:
stream_index = stream_names.index(myStreamName)
stream = streams[stream_index]
inlet = pylsl.StreamInlet(stream)
if inlet is not None:
data, sampletimes = inlet.pull_chunk()
if len(sampletimes) > 0:
print(len(data[0]), len(sampletimes))
time.sleep(0.5)Modify the myStreamName to match whatever stream name is associated with ActiChamp. You can run the script once to find the stream name, then edit the script with the correct name, then run it again to make sure data are coming through.
neelsomani
dmedine
sanchezdanj
I’m trying to get the BrainProducts actiChamp working with LSL. I’m hoping to display the stream of data. I’m working on a 64-bit Windows machine.
The Python script “ReceiveData.py” prints “looking for an EEG stream…” and then doesn’t output anything else. The Matlab script ReceiveData.m prints: “Loading the library... Resolving an EEG stream... Opening an inlet... Now receiving data…”
This makes me think that the scripts aren’t able to pick up on the EEG stream. Here are the steps that I’ve taken.
1) I downloaded the binary release for “Actichamp” from the SCCN FTP site: ftp://sccn.ucsd.edu/pub/software/LSL/
2) I downloaded BCILAB-1.1.
3) I clone the labstreaminglayer Github repo to my Desktop. I run the “get_deps.py” script. Then I run the “premangle_boost.py” script.
4) In the libsls-Python directory, I run the “setup.py” script. For Matlab, I add the liblsl-Matlab directory to my path recursively. I also add the BCILAB folder recursively.
5) I run the Actichamp LSL executable. I checked the “Use AUX Channels” checkbox and added eight channel labels. Then I clicked “Link.” I’ve confirmed that the Device Number is correct, and the computer is capable of receiving data from the Actichamp (I have another piece of software that is able to receive the channel data).
6) When I run the ReceiveData examples, I get the problems listed above.
What am I missing? Are there any steps that I should take to troubleshoot?