User's Manual

Address:Lierda Building, 425 Dengyun Road, Hangzhou, China,Lierda Science & Technology Group Co., Ltd
Tel:[phone] Fax:[phone]
Pin
Pin definition
Functional description
1
GND
GND
2
RF_BG
2.4GHz RF interface
3
GND
GND
4
NC（connect PIN23 by resister and crytals）
NC(dangling)
5
NC（Set aside other models IC 5G in use，
dangling，not connected to any PIN）
NC(dangling)
6
SOP2
Function mode ：2.7K Pulldown
resistor ；start UART load
model from falsh.( module has a
drop-down )
7
GPIO28
IO interface
（
100 k pull-down
resistor in module
）
8
NC(PIN45)
NC
9
SOP0
With SWD mode ，the pin
need 10K Pull-up resistors 。
（100K pull-down resistors in
module）
10
nRESET
Reset pin
11
VBAT_DCDC_ANA
VDD
（
DC_3.3V
）
12
VBAT_DCDC_PA
VDD（DC_3.3V）
13
VBAT_DCDC_DIG_IO
VDD（DC_3.3V）
14
VDD_FLASH
VDD（DC_3.3V）
15
GPIO30
IO interface
16
NC(PIN48)
NC
17
GPIO0
IO interface
18
NC（connect PIN51 by resister and crytals）
NC(dangling)
19
GND
GND
20
GPIO1
IO interface（100K
pull-down resisteor in module ）
21
GPIO2
IO interface
22
GPIO3
IO interface
23
GPIO4
IO interface
24
GPIO5
IO interface
25
GPIO6
IO interface
26
GPIO7
IO interface
27
GPIO8
IO interface
28
GPIO9
IO interface
29
GND
GND
30
GPIO10
IO inetrface