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Barcode decoding for a dumb wand scanner

Posted on 2007-11-20
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Last Modified: 2013-12-27
Help Anyone Please

I need to integrate a dumb wand through C language, with an 8051 microcontroller to display the price of barcodes that are scanned. Any ideas on code and any circuitry needed?

Many thanks
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Question by:badenmaher69
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by:Jaime Olivares
ID: 20323898
that depend on you wand. Some of them are either serial or PS/2.
Serial will require a MAX 232 serial interface, PS/2 will require some kind of clocking signal from the microprocessor.
To show the price, you will need a serial or parallel LCD module, parallel use to be cheaper (about $20), serial more expensive (about $50).
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by:badenmaher69
ID: 20327205
oh sorry i have a MS119 wand with no connector yet im looking to use the ttl from it . but how do i go about creating a clock signal e.t.c but thanks
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by:Jaime Olivares
ID: 20327428
I have searched for this code MS119 without look. I have no idea how you will guess the signal encoding of the wand.
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by:badenmaher69
ID: 20329982
MSH 119 from opticon what i really need it for is a code written in C to allow integartion with an 8051 to allow scanned items price to be displayed and keep a running total cheers would greatly appreciate it
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by:Jaime Olivares
ID: 20330044
Well, sounds like you need to hire a microcontroller developer. Maybe rentacoder.com
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by:badenmaher69
ID: 20336741
yeah but im a wee poor student i need only some starting code to get me up and running thanks though
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by:Jaime Olivares
ID: 20336769
so, you say you have the wand without any connector? do you know the function of every cable?
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by:badenmaher69
ID: 20338143
yeah i have red +5v green TTL and screen GND.. that not a bother but im in need of code to see when code is scanned what price is produced i.e £1.99 e.t.c stored in my database (internal in 8051)... i only have to have a small ammount of products to show an understanding not a whizz kid
cheers for the help so far
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Jaime Olivares earned 500 total points
ID: 20338236
This is the closest project I have found:
http://www.ddj.com/embedded/184406485
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Author Closing Comment

by:badenmaher69
ID: 31410240
you deserve this no matter but could anyone keep looking my mail is badenmaher@hotmail.com
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