Changes

Jump to navigation Jump to search
2,388 bytes added ,  14:09, 23 January 2023
Line 27: Line 27:  
     | downloads          =  
 
     | downloads          =  
 
     | manuals            = {{bulleted list
 
     | manuals            = {{bulleted list
         | [https://docs.unity3d.com/Manual/index.html Official Documentation]
+
         | [https://docs.openbci.com/ Documentation]
 +
        | [https://sccn.ucsd.edu/~mgrivich/LSL_Validation.html LSL Validation]
 +
        | [https://labstreaminglayer.readthedocs.io/info/supported_devices.html Supported Devices and Tools]
 +
    }}
 +
    | header2            = Templates
 +
    | data2              = {{bulleted list
 +
        | [https://surfdrive.surf.nl/files/index.php/s/qggfMMKsnUIDO0k example scripts (zip)]
 
     }}
 
     }}
 
   }}
 
   }}
Line 53: Line 59:     
==Usage==
 
==Usage==
''(Under Construction)''<br/>
+
=== Python ===
We are working on templates and tips. Stay tuned!
+
A short example for sending lsl streaming data:
*[[Unity/Timing]]
+
<syntaxhighlight lang="python" line>
 +
#!/usr/bin/env python
 +
 
 +
import threading
 +
from pylsl import StreamInfo, StreamOutlet
 +
 
 +
def getData():
 +
    while running:
 +
        buffer_in = getSensorData()
 +
        send_data = True
 +
        time.sleep(0.001)
 +
 
 +
info = StreamInfo(
 +
    name='MyStream',
 +
    type='COP',
 +
    channel_count=4,
 +
    nominal_srate = 200,
 +
    source_id='BalanceBoard_stream'
 +
    )
 +
outlet = StreamOutlet(info)  
 +
 
 +
threading.Thread(target=getData).start()
 +
while running == True:
 +
if send_data:
 +
outlet.push_chunk(buffer_in)
 +
send_data = False
 +
</syntaxhighlight>
 +
 
 +
A short example for receiving lsl data:
 +
<syntaxhighlight lang="python" line>
 +
#!/usr/bin/env python
 +
 
 +
from pylsl import StreamInlet, resolve_stream
 +
 
 +
streams = resolve_stream('name', 'MyStream')
 +
#streams = resolve_streams()
 +
 
 +
inlet = StreamInlet(streams[0])
 +
while True:
 +
    sample, timestamp = inlet.pull_sample()
 +
    print(timestamp, sample)
 +
</syntaxhighlight>
 +
 
 +
=== Matlab ===
 +
Please, read the instructions on the GitHub labstreaminglayer website (https://github.com/labstreaminglayer/liblsl-Matlab) on how to prepare Matlab to work with LSL. You can either use the latest release for your Matlab version, or if that doesn't workout well, build it from the source files. Make sure to add the liblsl-Matlab folder to your path recursively to make it available to your own scripts.
 +
 
 +
A short example for sending lsl streaming data:
 +
<syntaxhighlight lang="matlab" line>
 +
%% instantiate the library
 +
disp('Loading library...');
 +
lib = lsl_loadlib();
 +
 
 +
% make a new stream outlet
 +
disp('Creating a new streaminfo...');
 +
info = lsl_streaminfo(lib,'BioSemi','EEG',8,100,'cf_float32','sdfwerr32432');
 +
 
 +
disp('Opening an outlet...');
 +
outlet = lsl_outlet(info);
 +
 
 +
% send data into the outlet, sample by sample
 +
disp('Now transmitting data...');
 +
while true
 +
    outlet.push_sample(randn(8,1));
 +
    pause(0.01);
 +
end
 +
</syntaxhighlight>
 +
 
 +
A short example for receiving lsl streaming data:
 +
<syntaxhighlight lang="matlab" line>
 +
%% instantiate the library
 +
disp('Loading the library...');
 +
lib = lsl_loadlib();
   −
===Builds===
+
% resolve a stream...
We advise not to run your experiment from the Unity Editor, this will cause unwanted overhead that harms the performance. You can create a PC Standalone build to run it on our [[Computers | lab computers]].
+
disp('Resolving an EEG stream...');
 +
result = {};
 +
while isempty(result)
 +
    result = lsl_resolve_byprop(lib,'type','EEG'); end
   −
==References==
+
% create a new inlet
<references />
+
disp('Opening an inlet...');
 +
inlet = lsl_inlet(result{1});
   −
==External Links== <!-- Optional -->
+
disp('Now receiving data...');
*{{Official website|https://unity3d.com}}
+
while true
*[https://docs.unity3d.com/Manual/index.html Official Documentation]
+
    % get data from the inlet
 +
    [vec,ts] = inlet.pull_sample();
 +
    % and display it
 +
    fprintf('%.2f\t',vec);
 +
    fprintf('%.5f\n',ts);
 +
end</syntaxhighlight>

Navigation menu