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argian's Content

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#4192 Wiegand protocol for EM4100 Rfid reader

Posted by argian on 24 October 2010 - 11:08 PM in Netduino 2 (and Netduino 1)

I've made some test with a proximity card: 1) I've read with a usb Rfid reader, so i have this "0004959302" 2) I've read with the Rfid (EM4100) reader plugged in Rsr232 of my pc, and i obtain "2F004BAC46" 3) I've read with the Rfid (EM4100) reader and netduino and i have this array of byte 63, 51, 46, 198, 198, 25, 47, 95, 94, 25, 50, 121, 61, 126 The data structure should be this: STX (02 HEX) DATA (10 HEX) CR LF ETX (03 HEX) But I don't understand how can read card number (0004959302) from this byte array.



#4191 Wiegand protocol for EM4100 Rfid reader

Posted by argian on 24 October 2010 - 09:25 PM in Netduino 2 (and Netduino 1)

Hello everyone, anyone has experienced with the wiegand protocol? I have to interface Netduino with an RFID reader (EM4100) and use the Wiegand protocol for serial communication. I do not know where to start. Thanks




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