I need help for a pH and Humidity project.

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Ficher
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Joined: Fri Mar 16, 2018 10:16 am
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I need help for a pH and Humidity project.

Post by Ficher »

Hello everyone, I have a project to do in class, i need to use flowcode and PIC16F877A, and I chose pH sensor (SEN0161) and Humidity sensor (YL-69), I created the program for both and it works in simulation but he doesn't work with the sensors. I searched how i can use the sensors but everything is on Arduino. If anyone can help me, thank you very much.

kersing
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Re: I need help for a pH and Humidity project.

Post by kersing »

Perhaps you could post your code so we can give you pointers to what might be wrong? Given the amount of information you have given us at the moment we need a crystal ball...
“Integrity is doing the right thing, even when no one is watching.”

― C.S. Lewis

Ficher
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Re: I need help for a pH and Humidity project.

Post by Ficher »

No problem here's the code for the pH :
Capture 1
Capture 2

And the Humidity :
Capture 3
Capture 4

I just need help for the use of the sensors normaly the program works.
Attachments
Capture3.PNG
(207.15 KiB) Downloaded 3341 times
Capture2.PNG
(196.42 KiB) Downloaded 3341 times
Capture1.PNG
(183.46 KiB) Downloaded 3341 times

Ficher
Posts: 5
Joined: Fri Mar 16, 2018 10:16 am
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Re: I need help for a pH and Humidity project.

Post by Ficher »

Capture 4
Attachments
Capture4.PNG
(195.63 KiB) Downloaded 3340 times

kersing
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Re: I need help for a pH and Humidity project.

Post by kersing »

Please attach a flowcode file, screendumps only show us only part of what we normally check. (For instance clock settings, component connections etc)
“Integrity is doing the right thing, even when no one is watching.”

― C.S. Lewis

Ficher
Posts: 5
Joined: Fri Mar 16, 2018 10:16 am
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Re: I need help for a pH and Humidity project.

Post by Ficher »

The two flowcodes codes 1 is for pH and 3 for Humidity.
Attachments
Flowcode3.fcf
(15 KiB) Downloaded 89 times
Flowcode1.fcf
(11.5 KiB) Downloaded 77 times

johnsondav
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Re: I need help for a pH and Humidity project.

Post by johnsondav »

Hi Ficher

I would suggest you change the 'Clear' LCD with the following to get a smother display:
FC5_SCR1.jpg
FC5_SCR1.jpg (168 KiB) Viewed 3446 times
Not sure if the flikering display is your problem but this would help. Also, your math is a constant ( *100 / 5) = 20

just multuply your voltage by 20 and it should give your the same result - faster, if the 20 is stored as a variable. Microchip compiler always converts any number system to a hex value before it is compiled, this is how they acheive the 20% speed increase.

Hope this helps.

Regards
Dave

Ficher
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Joined: Fri Mar 16, 2018 10:16 am
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Re: I need help for a pH and Humidity project.

Post by Ficher »

Thanks for your help I go change the program to make it better.

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