Description:
13.56MHz RFID module
Interfacing this module to Arduino cannot be easier, it's in TTL serial interface. It can directly connect to Rx and Tx of the Arduino, or to pin 2 and 3 and use softserial library. It comes with two tags, pins and stripped wires.
Operating voltage: 3 - 5.5 V
Sensing distance: 0 - 40 mm
Pin Definitions of RFID card module:
Pin | Symbol | IO Type | Description | Arduino or notes |
J1-1 |
RXD |
I/O |
Uart Receiver | serial link to arduino pin 2 |
J1-2 |
TXD |
I/O |
Uart Transmitter | serial link to arduino pin 3 |
J1-3 |
OUT1 |
I/O |
Output 1 | |
J1-4 |
OUT2 |
I |
Output 2 | |
J1-5 |
RST |
I |
Reset, active-low floating for power-on reset by default |
|
J1-6 |
BUZ |
I |
Buzzer output, high level drive | Could be for different model |
J1-7 |
SIG |
O |
Interrupt output, LOW level indicates card in the field |
arduino digital pin 5 |
J1-8 |
VCC |
Power |
Power Positive | to 5v [3v3 can be used but has a smaller field range] |
J1-9 |
GND |
GND |
Power Negative | to gnd |
See this page for tutorials on how to use this RFID module.
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Price: $39.90