Another open hardware mod experiment: RFID-tag/Reader board for the Freerunner, Nanonote (?) and Beagleboard

Alex (Maxious) Sadleir maxious at gmail.com
Mon Apr 11 10:13:03 CEST 2011


There's an app for Android that reads MIFARE 13.56MHz transit cards:
https://github.com/codebutler/farebot
The author would like to see eventually emulating such cards:
http://codebutler.com/announcing-farebot-for-android
I would definitely be interested in a board if it was proven it could
read or emulate MIFARE transit tags.

4 wire installation @
http://chonyota.net/freerunner/FRNBv2/FRNBv2-Installation.pdf looks
easy enough for someone like me to solder :)

On Mon, Apr 11, 2011 at 5:59 PM, Denis Shulyaka <shulyaka at gmail.com> wrote:
> Hi Nikolaus,
>
> Great news!
>
> Here in Moscow, some of the tickets to public transport are basically
> RFID tags. Will I be able to "copy" them and use my Free Runner for it
> with this hardware?
>
> Best regards,
> Denis Shulyaka.
>
>
> 2011/4/11 Dr. H. Nikolaus Schaller <hns at goldelico.com>:
>> Dear all,
>> besides the GTA04 and the Freerunner Navigation Board,
>> we have been working behind the scenes on a new hardware mod,
>> originally for the Openmoko Freerunner. It is a
>>
>>        RFID Antenna, RFID Tag (M24LR64) and a RFID Reader (TRF7960) board.
>>        For 13 MHz (ISO14443, ISO15693).
>>
>> The project is still in its beginnings, but the hardware is designed and
>> first samples have been built and appear to work (at least as far as we
>> could test them). And, a first U-Boot based driver running on a BeagleBoard
>> has shown that the RFID reader chip responds and sends interrupts. The
>> tag chip also works and has been tested with an external USB based reader
>> stick.
>>
>> The boards have solder points so that it should be possible to interface
>> to different SoC and boards, e.g. BeagleBoard, Nanonote, OpenPandora...
>>
>> The minimum wiring is that it nedds 3.3V power, 3 SPI wires and a INT line
>> to a GPIO. If power should be controlled or the SoC has 1.8V I/O, more
>> wires are needed.
>>
>> For documentation and details I have uploaded some material to
>> this page:
>>
>>        http://wiki.openmoko.org/wiki/Freerunner_RFID_Board
>>
>> Schematics and board layout are available in EAGLE format.
>>
>> Now, what can you do with it? I don't know but would be happy to hear
>> about ideas...
>>
>> We have the idea to sell these complete boards at 79 EUR (which
>> is approx. half the price of a TI eval board), if you are interested in
>> experimenting with this technology.
>>
>>
>> Nikolaus
>>
>>
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>>
>
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