RF-Star RF-BM-BG22A1, Руководство пользователя

Страница: 6 / 23

RF-BM-BG22Ax
www.szrfstar.com V1.0 - Apr., 2021
Shenzhen RF-star Technology Co., Ltd.
Page 6 of 23
2.1.1 Module Pin Assignment
Figure 2. Pin Diagram of RF-BM-BG22A1/A2/A3
2.1.2 Module Pin Function
Table 1. Pin Functions of RF-BM-BG22A1/A2/A3
Pin Name
Chip Pin Pin
Type
Description
1
EXT_ANT - - External antenna interface
2
PB02 PB02 I/O GPIO
3 PB01 PB01 I/O GPIO
4 PB00 PB00 I/O
All parameters will be reset to factory settings after this pin is
set low for 5 s.
5 PA00 PA00 - GPIO
6
PA03 PA03 I/O
The module input signal (Standard hardware flow control:
Clear To Send). When it is at a high level, the MCU serial port