make a string to send it as a serial data.
조회 수: 15 (최근 30일)
이전 댓글 표시
Hello I want to control servo from simulink using Serial Send block. The servos are connected to an arduino which receives position values in following format.
servoID:pos&servoID:pos&servoID:pos
for example 1:255&2:123&3:120 I have a code that calculates these values but i don't know how to send this values in precise string format. Please help me with this. Its really urgent and part of my final year project.
Thank you!
댓글 수: 0
답변 (2개)
the cyclist
2015년 9월 13일
sprintf('%d:%d&%d:%d&%d:%d',[1 255 2 123 3 120])
I just used some explicit values for the second argument, but you can use variables there instead. If you carefully read the documentation, you'll see that the command has a lot of flexibility.
댓글 수: 2
Walter Roberson
2017년 5월 19일
Use a MATLAB function block and
output = uint8( sprintf('%d:%d&%d:%d&%d:%d',[1 255 2 123 3 120]) );
The result would be a uint8 vector, and those can be passed between blocks in Simulink.
Just watch out for fixed length vs variable length at the signal level.
Also if you are using any of the acceleration modes, then you will need to use one of the methods of declaring the vector to be variable length; see https://www.mathworks.com/help/fixedpoint/ug/defining-variable-size-data-for-code-generation.html
Iris José do Amaral Neto
2017년 5월 19일
I want to send this string to a arduino board using the serial port. Is there a way to do this in simulink? Has anyone ever managed?
댓글 수: 1
Kubilay DUMAN
2021년 5월 10일
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/613400/image.png)
By using above blocks, I was able to send following string by serial communication;
"Pot_value:544 PWM:17 Rot:1"
Note that compose string block does not take unsigned values.
참고 항목
카테고리
Help Center 및 File Exchange에서 Arduino Hardware에 대해 자세히 알아보기
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!