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125 kHz RFID reader [Project]
posted October 28 2013 10:06.38 by spic0m

This RFID reader works with 125 kHz tags in credit card size shape cards and with 125 kHz key fobs. The EM4100 protocol is used. When you approach an RFID Tag close enough (4-5 cm) to the reader's coil the reader will read the 10-digit unique ID of the Tag and transmit it as ASCII characters trough the serial output with 2400 bits per second.

The circuit includes a buzzer that beeps when a Tag is read successfully.

[Link: serasidis]

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