How to read data from arduino bluetooth?
2 ビュー (過去 30 日間)
古いコメントを表示
kintali narendra
2016 年 9 月 21 日
コメント済み: Walter Roberson
2016 年 9 月 23 日
I am successful in sending data from matlab to arduino via Bluetooth, but I am unable to read the data sent by Arduino-bluetooth(JY-MCU).
% serial communication between matlab and bluetooth
delete(instrfind);
b = Bluetooth('BTslave',1);
fopen(b); %write and read function
fwrite(b,'K');
A = fread(b,5)
fclose(b);
clear('b');
I am able to read 5 values but they are just random values not the right values.
0 件のコメント
採用された回答
Walter Roberson
2016 年 9 月 21 日
Watch out for the default on fread() being 'double' . If the bluetooth device is sending data in some other datatype you need to adjust your fread() to know that.
6 件のコメント
Walter Roberson
2016 年 9 月 23 日
Earlier I indicated that the default for fread was double. That was incorrect: the default is uint8=>double . Each character of the printable values was being interpreted as a separate value, but you needed a group of printable values to be read together as a single value.
その他の回答 (0 件)
参考
カテゴリ
Help Center および File Exchange で MATLAB Support Package for Arduino Hardware についてさらに検索
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!