Image corruption

[Mohamed_Eid]

I used Ni Visa to receive an image from a ESP32 With cam, image raw data ("string bytes") and save it in file.txt and convert it to jpg, when i convert it I found that the data is corrupted and also image is corrupted as shown  i will attach the vi and the file.txt in which i saved the received data figure 

[GerdW]

Hi Mohamed,

without looking at your VI: did you switch off EOL conversion when using WriteText (or switch off size prepending at WriteBinary) function?

You need to handle binary data correctly...

[GerdW]

Hi Mohamed,

could you please downconvert your VI? (Save for previous)

Not all of us use the most recent LabVIEW versions…

(I prefer LV2019.)

[Mohamed_Eid]

how to switch off EOL ? 

the image string bytes that I received look like that. 

[Mohamed_Eid]

here a 2019 version 

[GerdW]

Hi Mohamed,

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@Mohamed_Eid wrote:

how to switch off EOL ? 

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Read the LabVIEW help for both WriteFile functions in your VI. The help explains all the details:

You also should think about automatic TermChar handling for your serial communication: this may influence your algorithm, too. (Again: read the help for the ConfigureSerialPort function!)

Watch this video to learn about proper/correct serial communication with LabVIEW…

Why do you open/close the file in each iteration of your loop? Those functions belong before/after the loop, the same way as VISAOpen/Close!

What's the point of setting a VISA timeout of 10M ms = 10k s ~= 2.75 h???