The RN4871-I/RM140 is a Bluetooth module from Microchip that is designed for low-power wireless applications. This module is based on the 802.15.1 Bluetooth Low Energy specification and can be used to transmit and receive data over Bluetooth networks. It features a 9x11.5mm shielded antenna, an ASCII serial interface, and up to 8dBm output power. The RN4871-I/RM140 has a range of up to 30 meters and supports multiple options including secure pairing, GATT profiles, over-the-air device firmware updates, and device programming. It is suited for a variety of Bluetooth data solutions such as beacons, medical devices, home automation, asset tracking, and location services.