BL654 Series

Overview: BL654 Series

Mass Production - Now Available!

Building on Laird’s expertise with Nordic from the BL600 and BL652 series comes the most powerful yet -the BL654 series! It provides OEMs with the maximum design flexibility and performance. A complete multi-protocol embedded wireless offering with exceptional processing capability, all at a micro power budget.

Powered by Nordic’s nRF52840 silicon, the small form factor BL654 modules, DVKs and USB Dongle provide for a secure, robust BLE and Cortex -M4F CPU for any OEM’s product design. The BL654 provides you with maximum development flexibility with programming options for the Nordic SDK, a simple, intuitive AT Command Set, as well as Laird’s own smartBASIC environment.

Note: Nordic SDK not supported on BL654 USB Dongle, part # 451-00003)
The BL654 series brings out all nRF52840 hardware features and capabilities including USB access, up to 5.5V supply considerations, and 802.15.4 (Thread) implementation. Complete regulatory certifications enable faster time to market and reduced development risk completes Laird’s simplification of your next Bluetooth design!
  • Bluetooth v5 Bluetooth Low Energy (BLE) plus NFC
  • Thread 802.15.4 functionality (via Nordic SDK)
  • Widest range of configurable interfaces: UART, I2C, SPI, ADC, GPIO, PWM, FREQ, and NFC
  • Industrial Temp Rating (-40º to +85º C)
  • Ultra-Small footprint (15mm x 10mm x 2.2mm)
  • BLE Peripheral/Central roles with DTM embedded
  • 2Mbps & LE Long Range: Support for 2Mbps, 1Mbps, & 125kps coded
  • Hostless operation – Internal MCU reduces BOM
  • Powerful Core Cortex-M4F (1MB Flash, 256k RAM)
  • Built on years of experience with Nordic (BL600 & BL652 Series)
  • Fully featured development kit everything needed to start BLE development
  • Application Design Choice: Leverage Laird’s smartBASIC, simple AT Command Set or utilize Nordic SDK directly.
  • USB Dongle option: Packaged USB Adapter – bring full Bluetooth v5 connectivity to ANY device with a virtual COM port capability
  • Combine on-module MCU, smartBASIC and simultaneous central/peripheral role support for a powerful hostless solution for sensor applications.
  • Easily write event-driven, automated applications, no toolchain required with smartBASIC. Or utilize the Nordic SDK directly – design your way
  • Customize to balance throughput with power usage, enabled by ultra-low power sleep mode.
  • Carries several modular FCC, IC, CE, RCM, MIC and Bluetooth SIG approvals.
  • Laird’s industry-renowned support is passionate about helping you speed your design to market.
  • Antenna Options
    PCB Trace antenna or IPEX MHF4 RF Connector
  • Applications
    IoT Devices and Sensors, Beacons and Proximity Applications, Secure Medical Peripherals, Industrial Monitoring
  • BLE Services
    GATT Client & GATT Server
    Central/Peripheral Roles.
    Up to 20 BLE connections
    BLE Mesh
    2M PHY
    LE Advertising Extensions
    Secure Connections
    Privacy v1.2
    Data Packet Length Extensions
    vSP – Virtual Serial Port
  • Bluetooth Version
    v5 - Single-Mode (Peripheral and Central Roles)
  • Chipset
    Nordic nRF52840
  • Compliance
    Lead-free and RoHS compliant
    Bluetooth® Complete Declaration ID (pending)
    Approvals FCC / IC / CE / MIC / RCM - All BL654 Series (pending)
  • Data Rate
    Raw Data Rates (Air) - 1 Mbps, 2 Mbps, 125kbps
  • Frequency
    2.402 - 2.480 GHz
  • Frequency Range (Max)
  • Frequency Range (Min)
  • Input Power
    1.7V - 5.5V
  • Logical Interfaces
    UART Interface - TX, RX, CTS, RTS. DTR, DSR, DCD, RI possible in smartBASIC (GPIO) Default: 115200, N, 8, 1. Configurable from 1200 bps to 1 Mbps
    USB Interface - 2 pins - CDC/Audio/HID & Mass storage virtual interfaces.
    Other - 48 multifunction GPIO's
  • Max Transmit Power
    + 8 dBm
  • Product Line
    BL654 Series
  • Receive Sensitivity
    -95 dBm (typical @ BLE 1 Mpbs)
    -92 dBm (typical @ BLE 2 Mbps
    -103 dBm (typical @ BLE 125 kbps)
  • Software
    smartBASIC - On-board BASIC programming language
    AT Command Set - Simple AT ‘Hayes style’ command protocol
    Nordic SDK - Software/Support available from Nordic directly (Not supported on BL654 USB Dongle, part # 451-00003)
    FW upgrade via UART or JTAG
  • Wireless Specification
    Bluetooth v5 - Single-Mode
    Thread® - 802.15.4 stack provided via Nordic SDK



Application Note


Compliance Statement


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BL654 Series

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DistributorModelStock levelBuy now
element14 APAC451-00001740Buy now


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North America

DistributorModelStock levelBuy now
Arrow Electronics, Inc.451-000012024Buy now
Avnet451-000011100Buy now
Digi-Key451-000011508Buy now
Digi-Key451-000011508Buy now
Digi-Key451-000011000Buy now
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Arrow Electronics, Inc.451-00001C100Buy now
Verical451-00001C100Buy now
Find A Distributor
Name Contact Information
Arrow 1-855-326-4757
Avnet 1-480-643-2000
Digi-Key Corporation 1-800-344-4539
Future 1-800-675-1619
Mouser 1-800-346-6873
Newark 1-800-463-9275
Richardson RFPD 1-800-737-6937
Verical 1-855-837-4225

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