Data Sheet

2 Module interfaces
Pin number Symbol Type Function
17 RXD I/O UART0_RXD
(user-side serial
port)
18 GND P Power supply
reference ground
:::info
• P indicates power supply pins, I/O indicates input/output pins and AI indicates
analog input pins.
• RST is only a reset pin and cannot be used for clearing network con󰍓guration
information. :::
2.3 Denitions on test pins
Pin Number Symbol I/O Type Function
- I Used for
production tests of
the module
Test pins are not recommended.
7 / 22