QR Code

Hello!

I would like to check if a qr code like this:

https://upload.wikimedia.org/wikipedia/c­ommons/3/38/Qr-code-ver-10.png

on the screen of the pixl can be read without a problem, but I don't have any pixl yet...

Can someone try this please?

You are pushing the envelope... the pixels are so small that the smallest 'visual impurity' - such as a scratch or a small lint - in the line of sight between display and reading optics and a not perfect view angle - creating reflections / blurs - stresses error correction. Last but not least contrast is an issue as well.

The wikipedia says it's got lots of error correction pixels :-P

Resampled to 57x57 pixels:
http://javascriptology.com/qrcode/qrcode­_57x57.png
http://javascriptology.com/qrcode/qrcode­_57x57.bmp

It works fine on the screen of my Mac, in a 128*64 rectangle that has 5.4cm diagonally:

Can someone try this please, please? :-)

I'm not near a Pixl at the moment, but anyone who wants to try this can use http://www.espruino.com/Image+Converter

Even if that doesn't work, a smaller QR code containing less data (<=32 pixels so you can double it up) would be fine I'm sure.

Just tested - works great! Just ensure that when you import the image, black pixels really are black.

The image converter above defaults to using white as a 1, but on a Pixl a 1 is black. You just have to tick the invert checkbox.

Just tested as well. It seems to work like a charm.

1 Attachment

Sweet :-)

Thanks!