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Date:      Mon, 13 Oct 2014 07:11:08 -0700
From:      Waitman Gobble <gobble.wa@gmail.com>
To:        Steve Burton <steve@sliderule.demon.co.uk>
Cc:        "freebsd-questions@freebsd.org" <freebsd-questions@freebsd.org>
Subject:   Re: RFID tag read/write on FreeBSD
Message-ID:  <CAFuo_fy1hOrj_t1oossff5GW=d0yGp=JcfE0Ru4VEyYnEU72Mg@mail.gmail.com>
In-Reply-To: <543B5FB2.6050300@sliderule.demon.co.uk>
References:  <CAFuo_fzv-XT5U3wE0gPyopCwmpUDRJwmSRBuqKUv+sM8Kv2ddA@mail.gmail.com> <CAFuo_fwON2zFpR3WZ7g0s+cp4AMQx9GkMpHmLaM5awqLQJ7vJg@mail.gmail.com> <543B5FB2.6050300@sliderule.demon.co.uk>

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On Sun, Oct 12, 2014 at 10:14 PM, Steve Burton <steve@sliderule.demon.co.uk>
wrote:

> On 13/10/2014 04:45, Waitman Gobble wrote:
>
>> On Sun, Oct 12, 2014 at 5:05 PM, Waitman Gobble <gobble.wa@gmail.com>
>> wrote:
>>
>>  Hi,
>>>
>>> If you are wanting to read and write RFID tags (for like tracking people,
>>> and stuff) on FreeBSD I am working on software based on the Impinj R2000
>>> chipset. The SDK/demos are in c# / .NET, which runs in 'mono' but the
>>> mono
>>> people have apparently omitted the code for serial port callback
>>> functions
>>> so it basically sits there.. which is useless IMHO. So it looked to me
>>> like
>>> more work to make the code do what i need it to, at least in my
>>> application, instead of starting from scratch.
>>>
>>> Anyhow at the moment it's performing basic functions and reading tags..
>>> writing tags soon.
>>>
>>> ie,
>>>
>>> # ./rfid
>>> Connected to /dev/cuaU0 at 115200 baud.
>>> RFID read/write tags
>>> Control-C or Q<enter> to quit,
>>> R<enter> to Read Tag
>>>
>>> Received Command: 72
>>> Firmware Version: 1.9
>>> r<enter>
>>> Received Command: 81
>>> Tag: [pc 30 0] [epc e2 0 57 76 76 6 1 52 5 90 d7 5f] [crc 7f 6] [data e2
>>> 0
>>> 57 76] [ant 1]  [cnt 1]
>>>
>>> It's free.
>>>
>>> https://github.com/waitman/rfid
>>>
>>> builds with clang but needs boost port. i presume it may work with the
>>> RS500, R500 or R1000 chips but I've not any of those to test.
>>>
>>> --
>>> Waitman Gobble
>>> Los Altos California USA
>>> 510-830-7975
>>>
>>>
>> Update, writing tags now works.
>>
>> Also tested on PR9200 chip, Phychips. Which is apparently optimized for
>> "Fast Moving Consumer Goods". so if you want to track those kinds of
>> things
>> instead of people. After I talked to some people I now understand the
>> protocol is mostly standardized so it might be good to turn this into a
>> port, since it should theoretically work with all the modern RFID
>> chipsets.  And "AFAIK" RFID tag stuff has been limited to MS OS computers.
>>
>>
>>
>> # ./rfid
>> Connected to /dev/cuaU0 at 115200 baud.
>> RFID read/write tags
>> Control-C or Q<enter> to quit,
>> R<enter> to Read Tag
>> W<enter> to Write Tag
>>
>> Received Command: 72
>> Firmware Version: 1.9
>> r
>> Received Command: 81
>> Tag: [pc 30 0] [epc 11 22 33 44 76 6 1 52 5 90 d7 5f] [crc 8a 6] [data 11
>> 22 33 44] [ant 1]  [cnt 1]
>> w
>> Write Tag. Now enter data on one line. Four bytes separated by SPACEs.
>> Example: 11 22 33 44<enter>
>> 55 77 88 33
>> Received Command: 82
>> Tag Write Operation Complete. Read Tag to confirm data.
>> r
>> Received Command: 81
>> Tag: [pc 30 0] [epc 55 77 88 33 76 6 1 52 5 90 d7 5f] [crc 6a 2f] [data 55
>> 77 88 33] [ant 1]  [cnt 1]
>> q
>>
>>
>> Note:
>>
>> At the moment it's hard-coded for 4 data bytes in EPC. This can be
>> adjusted
>> in the code, eventually may be entered as command.
>>
>>
>>  For what it's worth, RFID tag stuff is also available for MCU's (Arduino
> etc.).
>
> Steve.
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Hi Steve,

Yes I've seen some products available, however they don't seem to fit my
application. I need about a coverage area of 7 meter by 2 meter range, the
MCU devices Ive found online seem more geared toward close contact (in
centimeter ranges) like ID cards / key fobs / badges etc. Also I need to
scan hundreds of tags within seconds.

 But I'm no expert, I'm learning. I haven't been lucky in finding open
source software for the task.

-- 
Waitman Gobble
Los Altos California USA
510-830-7975



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