Laird Connectivity BL654 Noridc SDK/Zephyr USB Adapter

Laird Connectivity BL654 Nordic SDK/Zephyr USB Adapter is a BLUETOOTH® v5 USB Adapter that offers complete flexibility to utilize the hardware with Nordic/Zephyr environments. This BLUETOOTH USB adapter features a secure pre-programmed bootloader and offers development flexibility. Typical applications include IoT devices and sensors, beacons and proximity applications, secure medical peripherals, and BLE mesh.


  • BLUETOOTH Low Energy (BLE) peripheral/central roles with embedded DTM
  • 2Mbps and LE long range supports 2Mbps, 1Mbps, and 125Kbps coded
  • Capable of hostless operation
  • Robust design
  • Integrated and secure pre-programmer bootloader enables the use of any Nordic nRF Connect software or utility
  • Development flexibility
  • Optimized for Nordic SDK / Zephyr Real-Time Operating System (RTOS)
  • -40°C to +85°C operating temperature range
  • 1MB flash and 256KB RAM Cortex®-M4F powerful core
  • FCC, IC, RCM, and BLUETOOTH SIG certified


  • Beacons and proximity applications
  • Industrial monitoring
  • Secure medical peripherals
  • BLE mesh
Published: 2019-09-10 | Updated: 2023-05-26