Microchip Technology RN4870-I/RM128, Manual, Page: 8 / 55

2016-2021 Microchip Technology Inc. DS50002489E-page 5
RN4870/71
26 28 P3_5 D I/O
A I/p
GPIO; default: Input; pulled high,
LED1; provides indication whether the module is
on/off.
27 29 P0_7 D I/O GPIO; default: Input; pulled high,
Configured to the LOW_BATTERY_INDICATOR pin
by default.
28 30 9 12 P0_2 D I/O AD2,
LED0: Provides indication whether the module is in
On/Off mode.
29 31 17 2 GND Power Ground reference.
32 GND Power Ground reference.
30 1 BT_RF A I/O External antenna connection (50 Ohms). Only for
RN4870U and RN4871U. No connection for RN4871.
33 GND Power Ground reference.
TABLE 1-2: PIN DESCRIPTION (CONTINUED)
RN4870U RN4870 RN4871U RN4871 Name Type Description
Legend: Pin Type Abbreviations: A = Analog D = Digital I/O = Input/Output I/p = Input O/p = Output
 














































  

 
 