RFID reader pushing data to web service?

[nardev]

I thought i would be very easy to find this device, but it seems that it's not that common.

I need as simple as possible, device that will read RFID card and be able to make http request sending that code further to certain service.

Or at least, to be accessible so that pulling data is possible to be done without any special software.

Also, it should be cheep in range from 100 to 200 USD.


If you know anything like that, please suggest...

[nardev]

Any idea?

[jtorba]

Easiest way I can see is having an arduino read from RFID reader (http://adafruit.com/products/789) and then just have it connected to a computer running a python script to interpret the serial and send an http request. This is lazy but cheapest.

A harder way would be to use one of these https://www.sparkfun.com/products/11395 with a breakout connected to an RFID reader and be able to make http requests directly on wifi. Both options would be easily below $100

[nardev]

Otherwise, any "plug and play" ready device doesn't exist ?

I have been thinking to place R.Pi with this breakout board, since data needs to be pushed via regular ADSL/Cable connection behind router and i want to avoid using any additional software, i prefer direct communication to API.

[DavidJRobertson]

You could hook up a RFID reader module to the raspberry pi through its GPIO/serial/I²C connector. Then write a script that listens for data from the RFID reader and makes necessary API requests.

Somewhat overkill for this but it'll be fairly easy and it'll work.

[Harvs]

You could hook up a RFID reader module to the raspberry pi through its GPIO/serial/I²C connector. Then write a script that listens for data from the RFID reader and makes necessary API requests.

Somewhat overkill for this but it'll be fairly easy and it'll work.

Or one step easier is just use one of the USB RFID readers that sell for around $10 on ebay that emulate a keyboard (in the same way barcode scanners do.)  Then as you say, a script on a PI as a web request.

[nardev]

Give me one example.

Are you sure that i will not have problems with drivers?

[Harvs]

http://www.ebay.com.au/itm/New-USB-RFID-Contactless-Proximity-Smart-Card-Reader-Brand-New-125Khz-EM4100-/181084464144?pt=LH_DefaultDomain_15&hash=item2a2979a410&_uhb=1#ht_3091wt_1163

Obviously there's many different shapes, sizes and prices.

Am I sure it'll work under Linux?  Absolutely not, I don't have one to test it and they don't even say it'll work under osx let alone linux, but how many pieces of hardware do say they're compatible with Linux?

But a bit of looking around at these things, it looks like they're the same as barcode readers, that just use the HID keyboard class and acts like a keyboard.  In that case, I've got a standard USB barcode reader that types in the code and finishes with an enter, and that's completely plug and play on the RPi.  Just plug it in at the command prompt and you can start entering barcodes, so I imagine the RFID reader would be the same (but I reserve the right to be wrong.)

It's a gamble...

[nardev]

http://www.ebay.com.au/itm/New-USB-RFID-Contactless-Proximity-Smart-Card-Reader-Brand-New-125Khz-EM4100-/181084464144?pt=LH_DefaultDomain_15&hash=item2a2979a410&_uhb=1#ht_3091wt_1163

Obviously there's many different shapes, sizes and prices.

Am I sure it'll work under Linux?  Absolutely not, I don't have one to test it and they don't even say it'll work under osx let alone linux, but how many pieces of hardware do say they're compatible with Linux?

But a bit of looking around at these things, it looks like they're the same as barcode readers, that just use the HID keyboard class and acts like a keyboard.  In that case, I've got a standard USB barcode reader that types in the code and finishes with an enter, and that's completely plug and play on the RPi.  Just plug it in at the command prompt and you can start entering barcodes, so I imagine the RFID reader would be the same (but I reserve the right to be wrong.)

It's a gamble...

i'll get one.. lets see what comes out of this..