User's Manual

WIFI pin location and description：
PIN
SYMBOL
DESCRIPTION
PIN
SYMBOL
DESCRIPTION
1
NC
Not Connect
17
BT_SYNC_IN
2
NC
Not Connect
18
GND
GND
3
NC
Not Connect
19
NC
4
NC
Not Connect
20
GND
GND
5
GND
GND
21
GND
GND
6
WL_USB_DP
USB D+
22
NC
7
WL_USB_DN
USB D-
23
GND
GND
8
GND
GND
24
GND
GND
9
NC
Not Connect
25
GND
GND
10
NC
Not Connect
26
WLAN_WAKE_HOST
WLAN CHIP
WAKES UP HOST
11
GND
GND
27
NC
12
NC
Not Connect
28
CHIP_EN
Shutdown CHIP
（Internal 47KΩ
pull up to 3.3V,
low level active）
13
GND
GND
29
GND
GND
14
BT_WAKE_HOST
BT CHIP
WAKES UP HOST
30
VDD33
3.3V
15
NC
Not Connect
31
NC
Not Connect
16
NC
Not Connect
32
GND
GND