How to send data to the serial port 3 times
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Hello I have to send some data to my arduino. Each line separetly. But It sends me some lines together. So where should I put function fprintf? The data in penultimate example are correct but I have to send each line separetly.
clear all;
clc;
b = Bluetooth('HC-05', 1);
fopen(b);
x=[]; neg = 0;
for a=1:3
neg = neg - 1;
if (neg< -5)
neg = -1; %//wraparound
end
x = [x; [randi([0 9], 1, 5) neg]]; %//addnewrowofrandomnumbers to x
a = num2str(x);
pause(5);
fprintf(b,a);
disp(a);
end
disp('all data');
disp(a);
Disp(a) in for function
1 5 4 0 3 -1
1 5 4 0 3 -1
1 7 3 5 1 -2
1 5 4 0 3 -1
1 7 3 5 1 -2
6 2 6 6 7 -3
Disp(a) in the end of program
1 5 4 0 3 -1
1 7 3 5 1 -2
6 2 6 6 7 -3
When I have fprintf in for function it show me. First line is correct others not.
0 5 8 6 1 -1
03 54 89 61 18 --12
036 543 891 614 184 ---123
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回答(1 个)
Walter Roberson
2016-4-23
a = [randi([0 9], 1, 5), neg];
x(end+1, :) = a;
fprintf(b, '%d %d %d %d %d %d\n', a);
7 个评论
Walter Roberson
2016-4-24
Replace
x = [x; [randi([0 9], 1, 5) neg]]; %//addnewrowofrandomnumbers to x
a = num2str(x);
pause(5);
fprintf(b,a);
with
a = [randi([0 9], 1, 5), neg];
x(end+1, :) = a;
fprintf(b, '%d %d %d %d %d %d\n', a);
If that does not work, I need to see the exact error message and the current version of your code.
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