Jinan USR IOT Technology Limited 4 / 9
1.3.
Pin Defination
PIN
Name
Signal Type
Defination
1
GND
P
Power Ground
2
RF
O
Radio-frequency output
3
GND
P
Power Ground
4
nReset
I
Reset module, take effect in low level
5
NC
N
Not Available
6
NC
N
Not Available
7
NC
N
Not Available
8
GND
N
Not Available
9
NFC_IN
N
Not Available
10
NFC_IP
N
Not Available
11
GND
P
Power Ground
12
GND
P
Power Ground
13
VCC
P
VCC,3.3V
14
VCC
P
VCC,3.3V
15
NC
N
Not Available
16
NC
N
Not Available
17
GND
P
Power Ground
18
GPIO
I/O
I/O Pin
19
UART_TX
O
UART TX Pin
20
UART_RX
I
UART RX Pin
21
nReload
I
Take effect in low level.Keep low level 1-3s to start
simplelink mode,over 3s to restore factory settings
22
nReady
O
Indicator pin of module working normally,take effect in
