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how to write PID control algorithm to control temperature
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i am working on project which is monitoring and controlling the temperature and humidity inside a chamber using raspberry pi and HTU21D sensor. i am very new on qt please help me coding.
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Hi and welcome to devnet forum
You need to cross-compile Qt libraries for raspberry pi https://www.raspberrypi.org/forums/viewtopic.php?t=204778 or to find an already compiled version. However, I would recommend to do the cross-compilation yourself, because you willknow what you have done when running into issues.
Furthermore, it is a good recommendation to install Qt creator and Qt libs on a desktop.
When you are stuck with specific Qt issues, there are a lot of people in the forum being to offer advice and assistance.
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@koahnig Thanks. but the problem is that i dont know how to implement a controller algorithm on qt
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@_bhum said in how to write PID control algorithm to control temperature:
the problem is that i dont know how to implement a controller algorithm on qt
It's the same way you implement a controller algorithm in C/C++.
Do you know how to do that?
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@_bhum said in how to write PID control algorithm to control temperature:
i dont know how to implement a controller algorithm on qt
so questions you may ask yourself:
- Why I'm gonna use Qt to implement a PID control algorithm?
- Am I able to implement a PID control algorithm with C++?
If answer to #2 is yes, then it implies #1 yes.
What I see here is that you'll be using Qt to make a fancy UI to let the user know about the status of the chamber under control, so he/she can set thresholds for temperature and humidity with nice UI controls/displays.
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@Pablo-J.-Rogina said in how to write PID control algorithm to control temperature:
@_bhum said in how to write PID control algorithm to control temperature:
i dont know how to implement a controller algorithm on qt
so questions you may ask yourself:
- Why I'm gonna use Qt to implement a PID control algorithm?
- Am I able to implement a PID control algorithm with C++?
If answer to #2 is yes, then it implies #1 yes.
What I see here is that you'll be using Qt to make a fancy UI to let the user know about the status of the chamber under control, so he/she can set thresholds for temperature and humidity with nice UI controls/displays.
Thanks for your reply, by keeping the above questions in mind I've started coding.
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how i execute my program on raspi terminal????
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You need to use a terminal program such as putty on your desktop. For details on how check out the raspberry pi webpage.
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@_bhum said in how to write PID control algorithm to control temperature:
how i execute my program on raspi terminal????
do you know how to run a program in a Linux terminal?
