A Software Decoder for HP-41 Barcodes

After I came across two used HEDS-3000 barcode wands I wanted to develop a barcode reader microcontroller solution for reading HP-41C and other barcodes. In order to develop a suitable algorithm I started to write this application. Initially intended to be a simple algorithm testbed it grew into a useful application. It is made available here for your usage.

The BarcodeReader application can be used for the following tasks:

Decode program and data barcode information from scanned images. A scan resolution of at least 400 dpi in pure black and white is recommended. Grayscale images look good on screen but yield poor scanning results.
Import programs in binary (.raw), binary (.p41) or hexadecimal (.dat) format.
Save programs in different formats: binary (.raw), binary (.p41), hexadecimal (.dat), text (.txt)
Save program bar codes as a Postscript program for conversion to bitmap images or for printing.
Print programs in text or barcode form directly to the system printer.

NOTE: As of November 2014 this is work in progress. Therefore the application outputs lots of debug messages to the console. A "final" version will be made available with source code when a stable version has been produced.

Preliminary documentation (BarcodeReader.pdf, 1 MB)

Program archive (barcodereader.zip, 1.6 MB) (unzip to produce the barcodereader.jar archive and then run per documentation)

The BarcodeReader application was written in Java and is therefore useable on any platform for which a Java Virtual Machine (JVM) exists.. For more information read the preliminary documentation in the PDF file above.