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How to pass data from Edit Text Box in GUI to Constant Block in Simulink?

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Yoga
Yoga 2012-10-18
编辑： CHHLONH Chhith 2018-3-30
Hi everyone..
I have a GUI and Simulink (from Simmechanics), and I want to import a data from Edit Text Box in GUI to Constant Block in Simulink. But I don't know how to make it. Is there anyone who can help me?
Thankyou for your attention...

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采纳的回答

Sachin Ganjare
Sachin Ganjare 2012-10-18
  2 个评论
Sachin Ganjare
Sachin Ganjare 2012-10-18
Use 'assignin' function in GUI function callback for updating value of variable that is used in constant block.
Yoga
Yoga 2012-10-20
Thanks for your fast response. I have tried but still I didn't understand by using workspace. I hope I'll use set_param commands. Maybe you can lead me to the link who show about set_param using and example.
Thank you..

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更多回答（2 个）

Azzi Abdelmalek
Azzi Abdelmalek 2012-10-20
编辑：Azzi Abdelmalek 2012-10-20
c=10
set_param('yourmodelname/Constant','value',num2str(c))
%yourmodelname is your simulink model name
  9 个评论
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Mina As
Mina As 2016-5-21
I have sine wave block instead of constant block how can i update the values of amplitude and frequency in gui with simulink?
CHHLONH Chhith
CHHLONH Chhith 2018-3-30
编辑：CHHLONH Chhith 2018-3-30
@ Azzi Abdelmalek
I used your command:
c=10
set_param('yourmodelname/Constant','value',num2str(c))
but it does not work with step block. Do you know the command for step block. thanks

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el khatabi el mahdi
hellos everyone . I am now working on a project that is the regulation of the temperautre and humidity with the help of the Arduino + DHT11 sensor and Simulink , I connected a script matlab in series with the Arduino software to extract values humidity and temperature to plots them in a graph. I'd like to display these values in Simulik for the regulation of these values ,I got Many problem at the declaration of set- param function here is the matlab code (exmeple Tepmerature ): global Temp ; Temp(i) = str2num(out(1:4));
set_param('DHT11SIM/Temperature','value',num2str(Temp))
set_param('DHT11SIM', 'Temperature', 'update')
subplot(211); plot(Temp,'g'); axis([0,temps,20,50]); title('DHT11 Température'); xlabel('---> temps (secondes)'); ylabel('---> Température'); grid
code simulink:
here is the erruer that always receives: Error using DHT (line 15) Invalid Simulink object name: DHT11SIM/Temperature .
please Help me

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