RF-Star RF-BM-ND04, Manual, Page: 10 / 21

RF-BM-ND04
www.szrfstar.com V1.2 - Sep., 2020
Shenzhen RF-star Technology Co., Ltd.
Page 9 of 20
2.2 Module Pin Diagram
Figure 3. Pin Diagram of RF-BM-ND04
2.3 Pin Functions
Table 2. Pin Functions of RF-BM-ND04
Pin Name Chip Pin Pin Type Description
1 GND GND GND GND
2 VCC VCC Power Power supply 1.7 V ~ 3.6 V, Recommend 3.3 V
3 P21 / RST P0_21 / RESET I/O
Reset, active low.
4 P22 P0_22 I/O
5 P23 P0_23 I/O
6 P24 P0_24 I/O
7 P25 P0_25 I/O
8 P28 P0_28 / AIN4 I/O
9 P29 P0_29 / AIN5 I/O