User's Manual

Note: This table parameter is for reference only and does not represent the maximum data
throughput that the module can support.
6.Module pin description and minimum circuit diagram:
7．Pin function description:
Pin number Pin name Pin description
1
UART_TX Serial data output
2
UART_RX Serial data input
3
UART_CTS Vacant
4
UART_RTS Vacant
5
GPIO4 Programmable input and output port
6
GPIO5 Programmable input and output port
7
VPP
VPP
8
ICE
Firmware upgrade port
Characteristic Write method
Write without
Response