delay sending data rs232

hello,

Can any one help on hpe to delay the (vv) values to be delayed in sending every 2 seconds?

clc
clear all
%s = serial('COM1','BaudRate',9600,'ByteOrder','bigEndian','FlowControl','none','Terminator','','TimeOut',10);% baud 
s=serial('COM7','BaudRate', 9600, 'Terminator', 'CR','ByteOrder',...
    'BigEndian','InputBufferSize',256,'TimeOut',10);
fopen(s);
%get(s);
% fprintf(s,'*idn?');
% out0 = fscanf(s)
% fprintf(s,':syst:err?');
% out1 = fscanf(s)
fprintf(s,'OUTP:STAT 1');
cc=3;
cmd = num2str(cc,':CHAN1:CURR\b %2.2f;CURR?')
fprintf(s,cmd);
%out2 = fscanf(s)
vv=[2,4,6,8];                            %%%%%%%%%%%%%%
vmd = num2str(vv,':CHAN1:VOLT\b %2.2f;VOLT?')
fprintf(s,vmd);
%out3 = fscanf(s)
fprintf(s,':CHAN1:MEAS:CURR?');
%out4 = fscanf(s)
fprintf(s,':CHAN1:MEAS:VOLT?');
%out5 = fscanf(s)
%fprintf(s,'OUTP:STAT 0');
fclose (s);
delete (s);

Answer 1

[Vidhi Agarwal]

hi @Oday Shahadh,

To introduce a delay between sending each value from the vv array, you can use MATLAB's "pause" function. This function will pause the execution of your script for a specified number of seconds. Follwoing is the sample code that can help you in understanding the implementation for the same.

% Voltage values to be sent
vv = [2, 4, 6, 8];

% Loop through each voltage value, send it, and pause for 2 seconds
for i = 1:length(vv)
    vmd = sprintf(':CHAN1:VOLT %2.2f;VOLT?', vv(i));
    fprintf(s, vmd);
    pause(2); % Pause for 2 seconds
end

To read more about "pause" function in MATLAB refer to the given documentation: https://www.mathworks.com/help/matlab/ref/pause.html

Hope this helps!