Users Manual

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2.1.
Pin Description
Chip Pin
Module Pin
Function Description
VDD
VDD
DC 2.0~3.6V
GND
GND
Ground
P0.11
RXD
UART--RX
P0.12
TXD
UART--TX
P0.04
ENABLE
Serial port enabling pin, pull it up to activate the module serial
port functions, pull it down to close the serial port, the module
power consumption is reduced
P0.09
Led status
Bluetooth status indicator, broadcast status flashes, connection
status is always on
P0.10
Wake up
Module wake-up pin, wake up on rising edge after module
sleep
SWDCLK
SWDCLK
Debug clock signal input
SWDIO
SWDIO
Debug Interface