QR Codes
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QR Codes are two-dimensional barcode graphics that can encode arbitrary binary data and we use QR code stickers to label things at Noisebridge! |
Stick one on a physical object encoding a link to a page that can be configured to 301 to arbitrary URLs (e.g. https://www.noisebridge.net/qr/07A72C23A7), and you get a system for hardlinking physical objects into cyberspace.
You can embed a QR code for any page on the wiki, of its own URL, by including this snippet on the page:
- QR code embed snippet:
{{#qrlite:{{fullurl:{{FULLPAGENAME}}#section-fragment}}|format=png|size=5|margin=0}}, prefix with a<br>to set it on its own line.
- Include the text of the link,
<br>{{fullurl:{{FULLPAGENAME}}}}, in text near the image, for the others' clarity when browsing & for printing.
FAQs: Frequently Accessed QRs[edit | edit source]
QR links
| https://main-wiki.extremist.software/wiki/QR_Codes |
| https://donate.noisebridge.net/ |
| https://www.noisebridge.net/wiki/Special:RequestAccount (anyone can submit, needs someone to approve from the big queue full of spam) |
| https://www.noisebridge.net/wiki/Special:InviteSignup (admin user invite new by email) |
| Anti-Harassment Policy / AHP |
| Community Standards |
| Excellence |
Extension:QRLite, on this wiki[edit | edit source]
You can embed a QR code for any page on the wiki, of its own URL, by including this snippet on the page:
- QR code embed snippet:
{{#qrlite:{{fullurl:{{FULLPAGENAME}}#section-fragment}}|format=png|size=5|margin=0}}, prefix with a<br>to set it on its own line.
- Include the text of the link,
<br>{{fullurl:{{FULLPAGENAME}}}}, in text near the image, for the others' clarity when browsing & for printing.
QR codes are generated by the "QRLite" extension on this wiki,
- checkable at the Special:Version#mw-version-ext,
- documented at mw:Extension:QRLite,
- or in source at gh:gesinn-it/QRLite.
QR Code Demo[edit | edit source]
Here's the new QR codes (and also some styling of the URL#fragment link target). Go wild!
| PNG |
{{#qrlite:{{fullurl:{{FULLPAGENAME}}}}|format=png|size=5|margin=0}}
{{#qrlite:{{fullurl:{{FULLPAGENAME}}#QR_Code_Demo}}|format=png|size=5|margin=0}}
| |
| SVG |
{{#qrlite:{{fullurl:{{FULLPAGENAME}}}}|format=svg|size=5|margin=0}}
| |
| View/include the link nearby |
<br>{{fullurl:{{FULLPAGENAME}}}}
|
For external URLs, here's the syntax:
{{#qrlite:https://example.com/|format=svg|size=5|margin=0}}
QR Code with border[edit | edit source]
| https://main-wiki.extremist.software/wiki/QR_Codes |
{|class="wikitable"
|{{#qrlite:{{fullurl:{{FULLPAGENAME}}}}|format=png|size=5|margin=0}}
|-
|{{fullurl:{{FULLPAGENAME}}}}
|}
Documentation[edit | edit source]
- The Wikipedia page on QR Codes is a decent overview.
- The ISO standard (208.00 CHF, ~$180 USD) developed by the original manufacturer, Denso Wave.
- Overview on Denso Wave's site
Generators[edit | edit source]
- QR Code Generator from the Zxing Project
- Call the Google Chart API with 'cht=qr'.
Software[edit | edit source]
- Zxing Project appears to be a Google-blessed software library written in Java for processing one-dimensional and two-dimensional barcodes. It is written for use on mobile phones.
- Snappr.net has an image-attched-to-email-to-text type gateway setup. snappr [at] snappr.net More info on their page
Other 2D Encodings[edit | edit source]
- Xerox PARC Dataglyphs - Embedding binary data inside of image dithering. Neat trick.