NINA-B1 Stand-Alone BLE Modules u-blox NINA-B1 Series Stand-alone BLUETOOTH® Low Energy (BLE) Modules are small devices that feature BLUETOOTH 5.0, a powerful Arm® Cortex®-M4 with FPU, and state-of-the-art power performance. The modules are designed with the embedded low power crystal that minimizes the power consumption thus extending the battery life. These NINA-B1 modules are delivered with u-connectXpress software that provides support for u-blox BLE serial port service, GATT client and server, beacons, and NFC™. The BLE modules offer full flexibility to add the application and run on the built-in Cortex-M4 with FPU. These NINA-B1 modules feature M4F MCU, 64kB RAM, 512kB flash memory, BLUETOOTH mesh, and seven to 20 maximum BLUETOOTH connections.