BMD-341 BLE Module u-blox BMD-341 Bluetooth® Low Energy (BLE) Module is an advanced, highly flexible, and ultra-low power multiprotocol System-on-Module (SoM) enabling Bluetooth 5 and IEEE 802.15.4 connectivity. This BLE module is based on Nordic Semiconductor nRF52840 System-on-Chip (SoC) capabilities and peripherals. The BMD-341 module provides a complete RF solution with an Arm® Cortex®-M4 with FPU processor, integrated 2.4GHz transceiver, and a U.FL connector for an external antenna. This module operates at -40°C to 85°C temperature range.