[BUG] QR codes are inverted

[jacekowski]

Currently the QR codes are drawn inverted. This limits compatibility severely (most scanners will not read inverted QR codes).

Ideally the code should have white border that is at least 4 modules wide as well.

[joBr99]

QR-Codes are drawn as is by the Nextion firmware, there is nothing I can do about this. I'm just setting the string of the QR-Code.

[jacekowski]

Swapping parameters (defaultBcoColor and 65535) in https://github.com/joBr99/nspanel-lovelace-ui/blob/main/HMI/n2t-out/cardQR.txt#L613 this line fixes the issue and codes are drawn correctly.

[randybb]

This is the reason why any of my android devices cannot read these QR codes as I have mentioned long time ago on discord?

[jacekowski]

That would be a yes.

Try installing http://jacekowski.net/nspanel/lui-release-qr.tft (i've just swapped QR colours)

[randybb]

I have a different display, but I faked it a bit - took a photo, inverted colors and was able to scan it!!! :D

[joBr99]

thanks, will look into this and add the fix to the HMIs

[joBr99]

swapped the colors in the EU Version; US-L and US-P will follow