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Barcode Scanner and Netduino.


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#1 Andre Trollip

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Posted 12 August 2012 - 06:02 AM

Hi Guys, Has anyone tried using a barcode scanner with a Netduino or Arduino? I want to attempt to read barcodes using my Netduino.

#2 Chris Walker

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Posted 13 August 2012 - 04:57 PM

Hi Galibore,

Has anyone tried using a barcode scanner with a Netduino or Arduino?
I want to attempt to read barcodes using my Netduino.

Absolutely.

First thing that comes to mind...some barcode scanners have serial outputs. If you grab one with an RS232 connector, you can use that with an RS232 shield or convert it using a MAX232 chip and plug that into pins D0/D1 on your Netduino.

There may be other barcode scanning components with TTL serial outputs as well.

Chris

#3 Andre Trollip

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Posted 13 August 2012 - 05:12 PM

Thanks Chris. I happen to have a USB one, but it seems a much more complicated affair to get that working without a USB Host shield. I'll probably rather get an RS 232 one. Thanks for your input.

#4 Dan Morphis

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Posted 13 August 2012 - 11:44 PM

Thanks Chris.
I happen to have a USB one, but it seems a much more complicated affair to get that working without a USB Host shield.
I'll probably rather get an RS 232 one.
Thanks for your input.


If you open up the device, I bet you'll find a TTL serial->USB converter chip. You could hack it and pull the data right from device before it goes into the chip. The two most common serial->usb chips are the PL2303 and FT232.

Doing that will keep you from having to buy another barcode scanner.

-dan

#5 Andre Trollip

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Posted 14 August 2012 - 07:47 AM

Awsome, I think I'm going to open it up. Thanks a lot Dan.




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