Instructions

Pin Function Description
Pin
J1_1
Name
Direction
Description
LED
O
Card status indication
(High level: no card indication; low level: card indication)
Falling edge trigger wake up after low power sleep
TXD serial data output/WG1 Wiegand DATA1/IIC SDA
DC3.3V/5.0V power input
J1_2
J1_3
J1_4
J1_5
J1_6
J1_7
J2_1
J2_2
WAKE
TXD
I
O
VCC
DIR
Pwr/I
O
I
RS485 Direction change
RXD
GND
ANT1
ANT2
RXD serial data input/WG0 Wiegand DATA0/IIC SCL
Power ground
G
O
I
125KHz Antenna interface 1
125KHz Antenna interface 2
4
of 15
Rev 1.0