[Inpycon] On using QR codes for sponsor-participant contact exchange.

[Dhruv Baldawa]

I don't know how feasible/practical it is to print it, you can generate QR
Code for VCards.
Scanners detect it as a contact information. You can test this[1] by using
any Barcode Scanner app. I tried it with the Barcode Scanner app by ZXing
on Android.

Also, by changing chs=120x120 in [1] I was able to detect from around ~2ft.

[1]:
http://chart.apis.google.com/chart?chs=250x250&cht=qr&chl=BEGIN%3AVCARD%0AN%3ABaldawa%3BDhruv%0ATEL%3A999999999999%0AEMAIL%3Addddddd%40ggggggg.com%0AURL%3Asssssssssssssssssss%0AEND%3AVCARD%0A&choe=UTF-8


On Sat, Aug 2, 2014 at 11:56 PM, Bibhas <me at bibhas.in> wrote:

> On Saturday 02 August 2014 10:52 PM, Haris Ibrahim K. V. wrote:
>
>> Actually, thanks for bringing that up. We might have overlooked that
>> thinking printing is all that needs to be done. If the app cannot
>> understand the QR code, then all is lost.
>>
>> We will definitely try a few sample prints and make sure the quality
>> is upto the mark.
>>
> QR code for a (max) 10 digit number should be pretty simple. a 1x1inch
> qrcode sticker would be pretty usable with any kind of qr code
> reader/mobile device.
>
> Check this[1], my mobile can read it from 1.5 feet away with perfect
> accuracy.
>
> [1]: http://zxing.org/w/chart?cht=qr&chs=120x120&chld=L&choe=
> UTF-8&chl=9999999999
>
>
>> I think the attendees will write their names on their respective
>> badges after they do registration at the counter. So printing QR on
>> the badge before hand might not work. As you said, I think going with
>> the approach of sticking it onto their badge before handing them out
>> would work better.
>>
>> As for the schedule being printed, my vote would be to have about 2000
>> copies of the schedule taken on A4s and leave the pile on the
>> registration desk for the attendees to take for themselves, but I am
>> open to anything there. We'll decide on this once the badge printing
>> comes into picture.
>>
>> On 2 August 2014 22:44, Rejy M Cyriac <rcyriac at redhat.com> wrote:
>>
>>> On 08/02/2014 10:02 PM, Haris Ibrahim K. V. wrote:
>>>
>>>> That point is extremely valid. The time to take a decision. That does
>>>> make a difference.
>>>>
>>>> The data shared in both cases will be the same if I understand the
>>>> context correctly. Name, Email and job description (if available).
>>>>
>>>> Alright, since we have pushed the QR code front, we'll proceed on
>>>> that. In worst case, we will keep pen and paper as a backup option.
>>>>
>>>>  We may have to ensure that the printing of the QR code images are done
>>> with enough quality to retain the QR code image textures
>>>
>>> And we could also have the QR code image either directly printed on the
>>> badge, while printing the attendee name, or have it stuck on the badge
>>> before handing it over to the attendee. This will ensure that QR code
>>> image does not get mangled or torn, since it always remains inside the
>>> badge container.
>>>
>>> The conference schedule could be printed at the back of the badge. I
>>> have seen this done for some conference I attended this year, and it is
>>> very convenient, and easily accessible at all times.
>>>
>>> Disclaimer: I have personally never used QR code stuff, so forgive me if
>>> the points regarding QR code images are not valid. :-)
>>>
>>> - rejy (rmc)
>>>
>>>
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>>
>>
>>
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-- 
Dhruv Baldawa
(http://www.dhruvb.com)
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