Electrical Engineering Stack Exchange
Electrical Engineering Stack Exchange

Questions tagged [barcode]

Optical code made of vertical lines

The bar code consists of a combination of vertical lines, intended to be read optically and converted into a number.

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Reading useful data from barcode input

I have interfaced a HID bar-code scanner with LPC2468. It is sending data when i scan a bar-code, it sends a lot of bytes when i make a scan, how can i know out of these bytes which are the bytes corresponding to the scanned bar-code. For eg:If i…
Sarao
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Making a short range barcode scanner for model railways

I want to find out if it is possible detect and identify individual rolling stock of an H0 scale model railway using a bar code scanner. The biggest problem is the short distances there is only 5mm or perhaps even less to the scanner and the actual…
bask185
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Are there still sensors for a pen-type barcode scanner?

In 1980 there was HEDS-1000. in 2005 - HOA6480. In 2006 - HEDS-1300. Those were precision sensors with resolution as low as 0.13 mm at 4 mm distance. Now they are all discontinued and I cannot find a replacement. The only somewhat similar devices…
jhnlmn
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How do I connect a 14-pin ZIF?

I'm a student that is trying to learn hardware by building various devices, in this case a barcode reader from scratch. I bought a barcode scanning engine that has a 14 pin ZIF, pitch 0.5 mm (0.2 in) and am just trying to connect it to an arduino.…
eddie
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How to connect USB barcode scanner to a PIC?

I've got a bog standard barcode scanner with a USB output and I'm trying to figure out how to connect it to a PIC. Basically, the idea is that I use the scanner to scan a barcode and the barcode is then passed to the PIC which in turn uses the…
GeorgePotter
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Detecting numbered cards in a stack?

We are attempting to electronically determine which of 10 cards, numbered 1-10, is currently in front of a stack. Initially card 1 is in front. Eventually card 1 will be flipped around to the back of the stack, and card 2 will then be in the…
John Teel
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Barcode Scanner to Arduino/Interfacing

I've got an old barcode scanner that I've decided that I want to connect to an Arduino Uno(for the purposes of wireless transmission). After poking around I've found some information that states that basically it should act like an old AT Keyboard.…
Solidus
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Standalone Barcode Reader that checks against file

What I'm looking for is a standalone barcode reader device that checks a barcode against a list of numbers stored on the device and returns the status (valid/not valid/...) associated with the specific code. Is there any available device that does…
Benjamin
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UART pins interfacing with Barcode without handshaking signals

I am concerned about bar code interface with LPC1768/LPC1769 controller.. If I use only UART-TX, UART-RX, GND pin of controller only to interface with barcode scanner module which has UART or RS232 option( without mapping handshaking signal), i) is…
Techknowlogic
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Pen-type barcode scanner

I am designing a pen-type barcode scanner (1D) which is operated by user, which means that the speed at which the scanner moves is random. Even worse is that it gets stuck sometimes, so the signal gets stretched or even goes back sometimes. Well,…
user135819
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Interfacing barcode scanner with arduino using RS232

I want to connect a barcode scanner with Arduino. I used MAX232 to convert the levels. I have taken only 3 pins: 2(RX), 3(TX) and 5(GND) from the DB9 cable and given them to pins of MAX232 as shown in the figure: This is the code written in…
explorer
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Could a barcode scanner be used to get surface depth information?

(if tl;dr, go to the part where it says "actual question") this is probably a very obscure question, but: I'm working on a rather complex art installation with computer-generated sculptures, and I'm looking for a way to extract the "depth"…
Jakub Fiala
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Barcode reader circuit from scratch

I'd like to assess how difficult/doable is to create a barcode reader from scratch or what alternatives there are. The application is an automated storage and retrieval system. There are containers that each have a unique code and the goal for the…
Schach21
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Communicating by RS-232

I'm trying to communicate with a serial barcode scanner. This is how i've linked it to my computer (the circles represent the color of the wires already soldered in the serial plug) : http://img441.imageshack.us/img441/6126/0079.png When I scan a…
mimipc
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Z-6170 USB cable

I need to make a USB communication cable for the Zebex Z-6170 barcode reader. I found a reader pin-out description but I can't understand it. It is about powering the reader from USB and pin 1 (USB Power) and 2 (+ 5V). My guess is that USB Power is…
mlik
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