Barcode Reader

[IddoB]

Hi there,

I am looking to read a bar-code (Not sure what specific type yet) using the Raspberry Pi. While looking online I came across 2 options:

• Using a module to scan the barcode:
  http://www.ebay.ca/itm/High-Performance ... 0005.m1851
  http://www.ebay.ca/itm/Portable-EP1000- ... 0005.m1851
  The thing is that I couldnt find any documentation on how to use them.

• The second option is to try to add a the cheap Raspberry cam V1, and try to run a script that finds the code.
  https://technoobsite.wordpress.com/2016 ... e-scanner/

The first option would be the best if I can manage to find how to work with the scanners.

Id be happy to hear your input on the subject.

[topguy]

For the first link, the clue is in the words "TTL" and "USB".
- TTL means that probably there is a UART/serial interface that works on 5V. Raspberry Pi uses 3.3V on the GPIO serialport so some adaptor chip is recommended.
- USB: Should mean that there is a usb socket (or pins you need to solder a cable to) that you can connect to the USB port on the Pi.

Most likely when you connect the USB it will also be detected as a serialport.

The protocol for barcode scanners are usually very very simple.You scan something and the string is sent over the serialport with a line-feed to signal the end.
But you should probably request detailed interface and protocol description when/before you order any unit.

[jamesh]

Those scanner are so cheap they look like the best bet. They are really easy to interface if using USB, which will just appear as a serial port (as stated above). Just make sure it will read the type of barcode you are planning to use, although I suspect they will do most sorts.

[IddoB]

Those scanner are so cheap they look like the best bet. They are really easy to interface if using USB, which will just appear as a serial port (as stated above). Just make sure it will read the type of barcode you are planning to use, although I suspect they will do most sorts.

For the first link, the clue is in the words "TTL" and "USB".
- TTL means that probably there is a UART/serial interface that works on 5V. Raspberry Pi uses 3.3V on the GPIO serialport so some adaptor chip is recommended.
- USB: Should mean that there is a usb socket (or pins you need to solder a cable to) that you can connect to the USB port on the Pi.

Most likely when you connect the USB it will also be detected as a serialport.

The protocol for barcode scanners are usually very very simple.You scan something and the string is sent over the serialport with a line-feed to signal the end.
But you should probably request detailed interface and protocol description when/before you order any unit.

Thank you for this information. Which one of the 2 would you recommend?

[jamesh]

No way of telling from listings and haven't used either.

[IddoB]

No way of telling from listings and haven't used either.

In the first one it doesnt say that it comes with the connectors, http://prntscr.com/giqqa8
Do you think it does come or I need to buy ones, if so what type of connectors?