Replies: 16 comments
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I would recommend working (test) with a barcode scanner. (It can also be in continuous operation if necessary). The barcode scanner should behave exactly like the RFID scanner? As soon as it scans a valid barcode, it outputs the value (1234567890) as a HID device (like a keyboard). (disclaimer: this is not a technically sound statement. Children should not handle laser light under any circumstances).
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hi @sandreas @dnmtch |
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That's not necessary. There are enough (simpler) other ways to generate the barcodes. |
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Hi @sandreas
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The combination of RFID (10 numbers) and barcode is not trivial from my point of view. The standard "2of5" supported by many readers should be able to be used. |
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I have good news for you. I got the radio working right away with a barcode scanner (NETUM NT-1698W) for 12$. If there is interest, I can create a tutorial in the wiki. If I create barcode cards, I can also publish the template. |
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@dnmtch: Thank you - a short tutorial would be very nice. |
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Hi @dnmtch |
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Other resource: https://www.pyimagesearch.com/2018/05/21/an-opencv-barcode-and-qr-code-scanner-with-zbar/ |
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Barcode scanner is essentially a keyboard input. Could be easy to adapt in future3 once PR #1943 is merged. |
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@s-martin @MiczFlor Alternatively you could build a little wooden box around the scanner module and everytime you put a plastic card in, the activator button gets pressed or just expose the button (children should know how to use it) Everything you would need to create cards would be a printer... no RFID needed any more. Here is a youtube video: |
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As the evdev feature is now available in V3 it should be possible to add a barcode scanner (which is a keyboard input). |
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As long as the barcode scanner is integrated as a keyboard this should be possible right now for V2 and V3. @Lippsson don't you already use a barcode scanner successfully? |
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Yes true, I use this model for scanning. The advantage of this reader is that there is no real laser which can damage kids eyes. Tera Streckkodsskanner 1D 2D QR... https://www.amazon.se/dp/B098DCGK91?ref=ppx_pop_mob_ap_share |
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As this would be more a howto than a feature request, I would convert this issue into a Q&A discussion. Anybody interested in providing some hints how to use a barcode scanner could add a comment here. |
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Hi,
i like the idea, that rfid chips are cheap and easy to use. But would it be possible to also use a barcode scanner to trigger track changes?
This should be a similar technology and since a barcode is something that only needs to be printed, it would be easier to produce... perhaps also in combination with a barcode generator in the web interface to have unique id's...
As i own an old webcam, it would be also great to combine this with a webcam barcode reader - like this:
What do you think?
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