RF-Star BM-ND04C, Manual, Page: 14 / 51

nRF52810
www.szrfstar.com V1.3 - Sep., 2020
Shenzhen RF-star Technology Co., Ltd.
Page 13 of 50
Figure 6. Pin Assignment of RF-BM-ND08C(I)
Table 3. Pin Functions of RF-BM-ND08C(I)
Pin Name Function Description
1 ANT — Antenna pin
2 GND GND Ground
3 VCC VCC Power supply: 1.7 V ~ 3.6 V. Recommended to 3.3 V.
4 P25 I/O
5 P17 State indicator
Broadcast state indicator: in high level during broadcast, in low
level during connection (always on)
6 P21/RST I/O Reset, active low.
7 P13 Wakeup IO
When the module is in sleep state, the module can be awakened
through this IO.
Active on falling edge
8 P28 I/O
9 P27 I/O
10 P26 I/O
11 P09 I/O
12 P10 I/O
13
P19 RESTORE
All parameters will be reset to factory settings after this pin is
set low for 3 s.
14 P20 I/O
15 P05 RTS (Require ToSend, send request) output signal, used to indicate