send array from matlab using serial communication

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Yefta Devian
Yefta Devian 2015-5-18
评论： Saishka Naidoo 2021-1-27
hello, i need your help.
i want to send array from matlab to arduino using serial communication
here is my code
s1=serial('com1','BaudRate',9600)
fopen(s1)
A=[1,0,1,0,1,0]
fwrite(s1,A)
but it seems didnt work, because my arduino shows nothing. and can u help me how to print data which i sent?
regards,
yefta (<mailto:yeftadp@gmail.com yeftadp@gmail.com>)

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采纳的回答

Walter Roberson
Walter Roberson 2015-5-18
Notice that fwrite() sends binary data. And note that unless you tell MATLAB otherwise, constants such as 0 and 1 are double precision numbers, which occupy 8 bytes.
Possibly you want
fprintf(s1, '%d', A)
that would send the character string '1' '0' '1' and so on.
You might also want to send a newline to end the line:
fprintf(s1, '\n');
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Walter Roberson
Walter Roberson 2017-4-19
In the case where you know ahead of time which values will be integer, then something like,
fprintf(s1, '%f\n%d\n%f\n%d\n', A)
Otherwise,
fprintf(s1, '%g\n', A)
Naseeb Gill
Naseeb Gill 2017-4-20
编辑：Walter Roberson 2017-4-20
Thanks @walter Roberson for your reply. I used fprintf(s1, '%g\n', A) as you suggested but didn't get any output. I can't paste my whole code here so I open a new question for the same which link I'm giving here. It will be helful for me if you suggest solution to my problem. https://in.mathworks.com/matlabcentral/answers/336393-send-numerical-values-from-matlab-to-arduino
Thank you

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更多回答（1 个）

Yefta Devian
Yefta Devian 2015-5-19
hei Walter Roberson, you rock man
its work!! thankyou so much brother
regards,
yefta

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