ANNA-B112-01B Stand-alone Bluetooth® 5 module u-blox ANNA-B112-01B Stand-alone Bluetooth® 5 module features powerful Arm® Cortex®-M4 microprocessor with FPU and state-of-the-art power performance. The ANNA-B112 is delivered with u-connectXpress software that provides a wide range of support to various devices and services. This module includes u-blox Bluetooth low energy serial port service, GATT client and server, beacons, and NFC™. The ANNA-B112 module also supports simultaneous peripheral and central roles all configurable from a host by using AT commands and two alternative antenna implementations.