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MATLAB: Data Logger (streaming)

Written by Paul Cracknell

Updated at February 21st, 2025

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Table of Contents

Example MATLAB script to implement the Data Logger (streaming)

Example MATLAB script to implement the Data Logger (streaming)

Please note that Moku streaming functionality requires the installation of mokucli. For more MATLAB examples, please refer to this link.

%% Livestream Datalogger Example
% 
% This example demonstrates how you can use the Datalogger to live-stream
% dual-channel voltage data over the network.
% 
% (c) 2017 Liquid Instruments Pty. Ltd.
%
%% Connect to your Moku
ip = input('Please enter your Moku:Lab IP address: ', 's');

% Connect to your Moku and deploy the desired instrument
m = MokuDatalogger(ip);

%% Configure the instrument
% Set the samplerate to 10 Hz
m.set_samplerate(10);

%% Start network-streaming data
% Stop any previous sessions
m.stop_stream_data();
% Start a 10sec dual-channel streaming session
m.start_stream_data('duration',10,'ch1','true','ch2','true');

%% Receive samples
while 1 
 % Get 10 samples off the network at a time
 samples = m.get_stream_data('n',10);
 
 % Break out of the loop if we receive an empty cell array
 % This denotes the session has completed (works for dual-channel only)
 if iscell(samples)
 disp('Stream complete');
 break
 end

 disp(sprintf('Received: Channel 1 (%d smps), Channel 2 (%d smps)', ...
 length(samples(1,:)), length(samples(2,:))));
 % A short pause ensures this message will print with each loop
 pause(0.1);
end

%% Close the network-streaming session
% Denote that we are done with the data streaming session to clean up 
% device and network resources.
m.stop_stream_data();
streaming matlab

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