send array from matlab using serial communication
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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,
1 个评论
tamim ahmed
2016-12-4
what is the arduino code to receive this data in arduino. TIA
采纳的回答
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');
4 个评论
Mohammad Hasan
2016-12-4
what is the arduino code to receive this data in arduino. TIA
Naseeb Gill
2017-4-19
Hello @Walter sir, I have the same problem but in my case A may have integer values as well as decimal values. For example: A = [1.1,3,2.25,5]. How to send these values to arduino. Thanks
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
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
更多回答（1 个）
Yefta Devian
2015-5-19
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1 个评论
Saishka Naidoo
2021-1-27
Please can you attach the matlab and arduino code for what you have done.
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