Hi
I experimented a bit with Google’s QR API and found a way to send tiddlers in vcard format to my phone to import in my address book. My macro takes a tiddler title as input and optionally a size:
To transform a tiddler into a QR code use
<<qr-tid "Tiddler Title">>
or
<<qr-tid "Tiddler Title" size:540>>
---
\define qr-tid(tiddler,size:354)
<$wikify name="text" text=<<qr-urlencode """$tiddler$""">>>
<$macrocall $name="qr-code" text=<<text>> size=$size$/>
</$wikify>
\end
\define qr-code(text,size:354)
<img src='
http://chart.apis.google.com/chart?chs=$size$x$size$&cht=qr&chl=$text$'>
\end
\define qr-urlencode(tiddler)
<$view format="urlencoded" tiddler="""$tiddler$"""/>
\end
---
If you want to test, you can import a
.vcf file like mine directly by dropping it on your wiki.