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RFID Reader


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4 replies to this topic

#1 WahidM

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Posted 20 January 2012 - 03:06 PM

Hi, Just wondering if anyone can recommend an RFID reader that is compatible with the Netduino. I need one that can read from at least 30cm. Can anyone help? Thanks

#2 Paul Newton

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Posted 20 January 2012 - 04:26 PM

Hi, Andreas has one in his coffee machine: http://forums.netdui...age__pid__22956

#3 Guest_Steve Pixley_*

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Posted 12 July 2012 - 10:40 AM

I am properly aware with an Rfid reader, it is of Autocrib but not sure about its compatibility with Netduino. If you will do any research about it, please let me know also.

#4 nakchak

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Posted 12 July 2012 - 12:18 PM

Pretty much any serial (RS232) based RFID reader can be used with a netduino, currently using readers from legic, RFIdeas, and Baltech at work with an ND+ with great success. You may want to use a RS232 level shifter such as the maxim MAX232 chip, although most devices in my experience use TTL voltages (certainly the ones that can be powered via USB). Nak.

#5 Nobby

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Posted 14 July 2012 - 05:50 AM

Hi,

Just wondering if anyone can recommend an RFID reader that is compatible with the Netduino. I need one that can read from at least 30cm.

Can anyone help?

Thanks


I've used the Texas Instruments RFID readers in the past with AVR based projects. Unfortunately, there's no way you're going to get 30cm read range out of most units. Purely because the most available and popular units are High Frequency RFIDs(used in keycard access etc).

All the long range options are the low frequency devices(cattle tags, anti-theft etc). I can't remember off-hand what those are but the high freq devices operate at 6MHz and the low frequency devices are in the hundreds of kHz.

Either way you go, all communications are TTL/RS232 with a possible USB option.




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