User's Manual

Wi-Fi&Bluetooth Module Series
FC41D_Hardware_Design
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3.2. Pin Assignment
25
26
DBG_TXD
DBG_RXD
22
27
1
2
3
12
13
15
16
17
18
19
20
21
23
24
GPIO4
GPIO3
MAIN_RXD
SPI_CS
SPI_CLK
GND
VBAT
POWER GND
SPI
UART
ANT GPIO
FC41D
Top View
ADC
MAIN_TXD
14
GND
SPI_MOSI
SPI_MISO
NET_STATUS
GND
ANT_WIFI/BT
GND
I2C
GPIO2
8
9
10
11
PWM
CEN
GPIO1
WAKEUP_OUT
4
5
6
7
WAKEUP_IN
I2C_SDA
RESERVED
I2C_SCL
Others
RESERVED
Figure 1: Pin Assignment (Top View)
Please keep all RESERVED pins open.
NOTE