Yes – your library is now working on XIAO_ESP32S3 with OV3660 camera
The trick was to add sensor->set_vflip(sensor, 1); in ::setup()

Yes – your fork is working fine.
The tutorial said you were using the library by Alvarowolfx so I forked that myself. Didn’t realise the link was to a fork of your own in which you’d corrected the error that I was hitting.

My current challenge is to make this work using an OV3660 camera instead of OV2640. I get Decoding Failed: ECC failure, Invalid payload: Format data ECC failure or Error: not a valid qrcode

Hi.
We created a fork of the library to fix the issue.
Is our fork of the library working?
Regards,
Sara

Oh. I see the library you link is not the original alvarowolfx/ESP32QRCodeReader library. You have fixed the error in the original library where .h files were placed in an ‘include’ folder rather than in ‘src’.

I was able to install this fork of that library: https://github.com/hardwareliberopinerolo/ESP32QRCodeReader

I haven’t explored how they differ but it looks like there is something wrong with the original library when used with Arduino IDE 2.3.2 and 2.3.6

I’m getting the same error.

I downloaded the .zip file from GitHub and saved as ESP32QRCodeReader-master.zip
I then used Sketch | Include Library | Add Zip library to add it
Arduino IDE reports: Error: 13 INTERNAL: Library install failed: moving extracted archive to destination dir: library not valid

I’ve looked inside the ZIP and there are a library.json and library.properties that look ok. There’s an include folder and a src folder.
I’m not sure what other validation is done by Arduino IDE
I’m using Arduino IDE 2.3.6 on my desktop and I’ve repeated this with the same results on my laptop using IDE 2.3.2

Not sure what else to check.

Hi.
It should work with any QR code.
Regards,
Sara

Hi.
This project is just for QR Codes.
At the moment, we don’t have any project with bar codes.

Regards,
Sara