Hangzhou Gubei Electronics Technology Co. Ltd BL3329-P Benutzerhandbuch
12
Pin6
TX1
UART Only for Passthrough
GPIO1
I/O
Pin7
RX1
UART Only for Passthrough
GPIO3
I/O
Pin8
RX1
UART Only for Passthrough
GPIO3
Pin9
TX1
I/O
GPIO1
I2S Port
Pin10
GPIO25
I/O
Pin11
GPIO27
I/O
Pin12
GPIO21
I/O
Pin13
VCC
3.3V
Pin14
GND
7. Reference Design
If the peripheral MCU uses power source of 5V,it needs to add a level switching circuit in the
connection of the serial port and the related circuit.
The module needs a large current about 300mA when transmitting data,please ensure that the
power source can provide sufficient current.
connection of the serial port and the related circuit.
The module needs a large current about 300mA when transmitting data,please ensure that the
power source can provide sufficient current.
WIFI MODULE
Peripheral MCU