Matlab only receives 1 arduino data
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Erwin Avendaño
il 2 Dic 2019
Commentato: Erwin Avendaño
il 2 Dic 2019
I want to graph some data that comes from arduino to matlab but, I only graph 1 data from the series of data that I have, why? thank you very much for reading me
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function Matlab_Arduino
close all;
clc;
y=zeros(1,1000); %Vector donde se guardaran los datos
%Inicializo el puerto serial que utilizare
delete(instrfind({'Port'},{'COM13'}));
puerto_serial=serial('COM13');
puerto_serial.BaudRate=9600;
warning('off','MATLAB:serial:fscanf:unsuccessfulRead');
%Abro el puerto serial
fopen(puerto_serial);
figure('Name','Serial communication: Matlab + Arduino')
title('SERIAL COMMUNICATION MATLAB+ARDUINO');
xlabel('time');
ylabel('aceleration');
grid on;
hold on;
%graph
ylim([0 100]);
xlim([0 100]);
aceleracion=fscanf(puerto_serial,'%d');
plot(aceleration,'X-r');
fclose(puerto_serial);
delete(puerto_serial);
clear all;
end
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Walter Roberson
il 2 Dic 2019
By default, fscanf() only reads until the first terminator. When data is sent from arduino serial port, it is most common to send only one data point per packet.
You will need to loop reading data and adding it to the graph. I recommend that you look at animatedline()
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