Scanning Large QR Clone Code

Hi Dmitriy! I’m writing a SparkFun tutorial on our weather station, and I’m demonstrating lots of Blynk widgets. I’d like readers to be able to get shared access to our app and to clone their own. The QR scanner within Blynk doesn’t seem to get able to grab the following clone QR code, whereas a different QR app is able to kind of capture it (doesn’t report full contents of code but IDs it as a QR code).

Problem code:

Have I crossed a limit? This app has 18+ widgets and tabs. It’s a big one! I’m happy to reduce the number of widgets, just let me know.

Additional info: Phone is Samsung S7, Blynk version 2.0.1, Android v6.0.1

Hi,

It’s a known issue, especially for some Samsung devices. Next release (which will be released soon) will have some improvements for QR scanning, the main one is enable/disable autofocus support, which usually causes described by you behaviour.

New release of Blynk (v2.0.2 for me) has QR scanner changes. Looks like I can turn off auto-focus. Neat. The scanner is blistering fast with a share QR code but I cannot get the larger code to scan.

Curiously, the QR code I provided above does not resolve with online QR interpreters such as this one. Perhaps it is corrupted?

So I generated another QR code from within Blynk:

This one resolves with the following data using the online interpreter but I cannot get it to scan from within the Blynk app.

bp1eJzVWf9yokgQfhVqUld1V+VGmBkE/I9EY6zTTcofSW3dpVIjjEpFwcPBJLuVd7pnuCe7BlRwVwXU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@sparky Works for me. Look like issue with Samsung is still there. We will investigate further. Thanks for reporting.

NEAT. You can clone the app. Cool.

Thanks for checking into it. We’ll go live with some language that let’s folks know QR cloning may not work on Samsung phones.

1 Like

Dashboard is neat :heart_eyes:

Could you also add some video of the scanning process on your device?

I almost called you crazy (how would I video me using the camera that I need to video me using the camera…) But alas! There’s an app for that.

I’ve uploaded the 17MB file to a 48 hour temp storage site.

https://expirebox.com/download/4513941c3bf310d1c955cad76c30e5c4.html

Let me know if you’d like me to upload it elsewhere.

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Thanks)

Yeap. There is always app for something :joy: