Howto:Codice a barre
Introduzione
Decodifica con telefono cellulare
- Download del lettore per cellulari Java (versione 1.6, utilizzo gratuito)
- 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).
