Howto:Codice a barre: differenze tra le versioni

 
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== Introduzione ==
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== Decodifica con telefono cellulare ==
 
*[http://semacode.org/download/agree?dl_location=/download/toolkit/1.6/semacode_reader_me-1.6.zip Download del lettore per cellulari Java] (versione 1.6, utilizzo gratuito)
*[http://semacode.org/about/hardware/ Elenco dei telefoni supportati]
 
=== Istruzioni ===
 
====Installazione====
 
The installation procedure for Java applications varies widely from phone to phone.
Therefore, you should consult the phone's user manual for the exact instructions.
Generally speaking the easiest way to install is by using a USB cable or Bluetooth. In
this case, first, download the software to your PC. Then, copy Semacode.jar to
your phone and then follow the prompted installation procedure on the phone.
If you cannot install the software directly from your PC, you may install Semacode
reader "over the air" (OTA). Open the web browser on your phone, and enter in the
following URL: semacode.org/ota. Once you reach this page, you will be guided
through the OTA download and installation process.
 
====Utilizzo====
Locate the Semacode reader application on your phone's application menu (potentially
labelled "Java"). Run the application.
Once the application is running, the viewfinder will start automatically. Point the
phone's camera at a semacode tag, so that it is centred in the viewfinder display. See
the included "Quick Reference Sheet" for an illustrated diagram of how the visual tag
should appear in the viewfinder.
Once you have aligned the tag correctly, simply press the central directional pad button.
This may also be labelled OK or Fire. This will cause the reader to begin automatically
decoding the tag.
When decoding is complete, the software will prompt you to load the URL.
The URL will load in the phone's built-in web browser. For instructions on how the
user, see the phone's user manual.
 
====Risoluzione dei problemi====
Semacode reader relies on optical scanning to decode the tags. There are several situations
that may interfere with proper function.
Problem: Low light.
Solution: Very low light, such as in a darkened room, may cause the reader to be unable
to distinguish the white from the black dots. Increase the available light, or move
yourself or the visual tag to remove shadows.
Problem: Camera on an angle
Solution: Holding the camera at a severe angle to the code may cause it to be distorted
in the image. Point the camera directly at the tag, so that it appears to be a square shape
in the viewfinder.
Problem: Strong shadow line
Solution: A very strong shadow that falls across the centre of the tag may confuse the
software's ability to distinguish light and dark squares. This might be caused by shadows
over direct sunlight or spot lighting. Move the object causing the shadow, or the
tag, or shade the tag so that it is in uniform light (either uniformly bright or dark).
 
== Decodifica online ==
 
=== Utilizzo ===
 
*[http://www.iubar.it/tools/semacode/upload.php Decodifica online]
 
[[Categoria:Howto]]

Versione delle 19:47, 2 ago 2011

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