User's Manual

11
4
GND
GND
/
Ground
5
RESET
RESET
input
Reset pin
High level: normal operation of the module
Low level: the module keeps reset
6
SWCLK
SWCLK
/
/
7
SWD
SWD
/
/
8
P0.16
INT
Input
The key pin is detected as low level at startup and enters the test
mode.
9
P0.00
LED2
output
Used to display the connection status, flashes at a frequency of
500ms after connection, and the disconnection light is off.