BL654

  1. Datasheet
  2. Product Brief
  3. Documentation
  4. Application Note
  5. Software
  6. Technical Drawings
  7. Certification
  8. Legacy Material
  9. FAQs
451-00001451-00001C451-00002451-00002C451-00003455-00001455-00002451-00004453-00062-K1

Datasheet

Datasheet - BL654Apr 2025
Datasheet - NFC Flex PCB AntennaSep 2024

Product Brief

Product Brief - BL654 SeriesJun 2024
Product Brief - BL654 USB for Nordic SDK / ZephyrApr 2025
Product Brief - BL654 USB with smartBASICApr 2025

Documentation

User Guide - BL654 USB with smartBASICApr 2025
User Guide & Quick Start Guide - BL654 DVKApr 2025
User Guide - smartBASIC Core Functionality v4.0Mar 2025
Quick Start Guide - BL65x AT InterfaceFeb 2025
Quick Start Guide - Dongle (smartBASIC variant)Apr 2025
PCN 4B-2019 - BL654 SeriesAug 2024
Quick Start Guide - BL654 USB for Nordic SDK / ZephyrApr 2025
PCN 9A-2020 - BL654 SeriesJul 2024
Release Notes - BL654/BL654PA v29.5.7.2 r0Mar 2025
User Guide - BL65x AT Interface ApplicationMar 2025
smartBASIC Applications Migration Guide - BL65xMar 2025
PCN 8J-2021 - BL653/BL653µ/BL654Aug 2024
User Guide - BL654 smartBASIC Extensions v29.5.7.2Apr 2025
PCN 8H-2023 - BL653/BL654/BL654PA/BL5340/BL540PAAug 2024
Ezurio PCN #6O-2025 - BL654 Rebranding to EzurioSep 2025

Application Note

Application Note - Throughput Testing with BT 5 - LE 2M PHY FeatureApr 2025
Application Note - Using the DVK-BL654 and Nordic SDKApr 2025
Application Note - Using vSP Service with smartBASIC - BL654Apr 2025
Application Notes - BLE Data Transfer - CODED PHY ModulationApr 2025
Application Note - Using Direct Test Mode - BL654Apr 2025
Application Note - Textpad Color Syntax HighlightingApr 2025
Application Note - Upgrading BL654 Firmware via UART - BL654Apr 2025
Application Note - Upgrading BL654 Firmware via JTAG - BL654Apr 2025
Application Note - Using BL654 DVK with Nordic nRFToolboxApr 2025
Application Note - Using Notepad and Color Syntax Highlighting - BL654Apr 2025
Application Note - Low Power Modes - BL654Apr 2025
Application Note - NFC Manager - BL654 Sample smartBASIC ApplicationApr 2025
Application Note - Range Testing - BL654Apr 2025
Application Note - Exiting DTM Mode - BL654Apr 2025
Application Note - Loading and Running Applications with UwTerminalX - BL654Apr 2025
Application Note - BLE Mesh – BL654 smartBASIC Implementation - MESH310_8 r1Apr 2025
Application Note - Ezurio Custom BLE Serial Port ServiceMar 2025
Application Note - Guidelines for Replacing AntennasMar 2025
Application Note - Creating a Secure Bootloader Image (BL654-USB)Apr 2025
Application Note - Bootloader UART Protocol - BL6xxFeb 2025
Application Note - Using UART Efficiently to Extend Battery Life (BL65x)Feb 2025
Application Note - How to Set Up vSP Service - BLxxFeb 2025
Application Note - BL654 Bluetooth v5 Adapter as a BLE SnifferApr 2025
Application Note - GATT Table with AT Interface ApplicationFeb 2025
Application Note - BT 5.x Feature Comparison for Ezurio Bluetooth ModulesFeb 2025
Application Note - DTM Configuration Using AT Commands - BL65x SeriesFeb 2025
Application Note - AT Interface – Pairing (vSP & non-vSP Mode) - BL65x ModulesFeb 2025
Application Note - Using the Nordic nRF Connect SDK v2.x with Visual Studio Code IDE - BL65x and BL5340Mar 2025
Application Note - Canvas Device Firmware Upgrade (DFU)Nov 2025

Software

Canvas
Canvas Python Firmware 2.1.114 days ago
Canvas Python Firmware 2.1.0Aug 2025
Canvas Python Firmware v2.0.1Mar 2025
Canvas Python Firmware v2.0.0Feb 2025
BL654 Firmware v29.2.2.0 r0.zipJan 2019
BL654 FIrmware for Upgrade v29.1.1.0 r0Jan 2019
NEW - BL654 Firmware For Upgrade v29.3.31.8-MESH310-8 r1Jun 2019
BL654 Firmware for Upgrade v29.3.3.0 r0Jan 2019
BL654 Firmware for Upgrade v29.3.5.0Aug 2019
BL654 FIrmware for Upgrade v29.4.6.0 r0Dec 2019
UwTerminalX – Serial Terminal UtilityApr 2020
UwFlashX – Serial Firmware Update UtilityApr 2020
BL654/BL654PA Firmware for Upgrade v29.4.6.6 r1Jul 2021
BL654/BL654PA Firmware for Upgrade v29.5.7.2.r2Jan 2021
Canvas Python Firmware - Releases (Github.com)Apr 2025

Technical Drawings

PCB Footprint for ASCII and DXF format - BL654.zipApr 2025
SCH Symbol for OrCAD format - BL654.zipJan 2019
3D Models - BL654.zipJan 2019
Schematics - DVK-BL654Apr 2025
CAD Files - 451-00003 (USB Adapter - smartBASIC)Apr 2020
CAD Files - 451-00004 (USB Adapter - Nordic/Zephyr)Apr 2020
BL654 PCB footprint (DXF and Altium format)Dec 2021
BL654 SCH symbol (Altium format)Dec 2021
Schematics - USB Adapter - BL654 (451-00004)Aug 2025

Certification

RoHS 3 - BluetoothMar 2025
MIC Certifications - BL654 ModuleOct 2022
FCC Certifications - BL654 ModuleAug 2024
AS/NZS Certifications - BL654 ModuleDec 2020
EU Certifications - BL654 ModuleDec 2022
ISED (Canada) - Certifications - BL654 ModuleAug 2024
DoC - BL654 Bluetooth USB AdapterAug 2020
AS/NZS Certifications - BL654-USBDec 2020
EU Certifications - BL654-USBDec 2020
FCC Certifications - BL654 DongleDec 2020
ISED (Canada) - BL654-USBDec 2020
Regulatory Information - BL654Aug 2024
FCC/ISED/EU Modular Approval (C2PC) - 802.15.4 (March 2021)Apr 2023
Regulatory Information - BL654 DonglesFeb 2022
ISED ICES-003 Issue 7 Declaration of ComplianceMay 2021
KC Certifications - BL654 ModuleJun 2022

Legacy Material

Application Note - Using the BL654 and Nordic SDK v16.0.0 with Eclipse and GCCAug 2024
User Guide - Repeater/Gateway ApplicationAug 2024

FAQs

What is the correct syntax for using the AT+GCFA command to query for the handle of a characteristic or descriptor in the remote Server's GATT table?Sep 2025
Can python scripts be loaded onto my device via SWD if no UART is available?Aug 2025
Where do I get NFC testing software for the BL654?Mar 2025
Can I use the PTS Firmware in BL654 Dongle?Oct 2024
Does Ezurio provide breakout boards for its Bluetooth modules?Jul 2024
When I try to XCompile + Load then load script $autorun$.AT.interface.BL654._.sb I get the following error: Compile Error: (0x0433) TOK_UNEXPECTED_TOKEN_IN_EXPRJul 2024
When working with AT Interface, or vSP UART Bridge example applications, how can I break out of a vSP UART bridge connection using the ^^^^ escape sequence in UwTerminalX with the 250ms delay specified, as it does not seem to be working?Jun 2024
Can I store multiple “$autorun$” files on the BL65x?Jun 2024
In smartBASIC, how can I increase the max message size above 20 bytes on a BL65x module?Apr 2024
Do you support any echoing support in the AT Interface app / implementation such as ATE1 & ATE0 for example?Dec 2023
How can the smartBASIC License key be restored if I get "192A - NVO_NVWORM_EXISTS: The WORM segment already exists and cannot be re-created" error when applying the license using AT+LIC command?Nov 2023
When working with AT Interface firmware, what is the correct syntax to use the AT+LSCN command when not wanting to use all the optional parameters?Nov 2023
When attempting to enable the external crystal within the smartBASIC code using BleConfigHfClock(1), why does it not change to high speed when calling SYSINFO(2082)?Nov 2023
How do you exit Autorun Mode, to enable updating a smartBASIC application OTA or via the UART?Oct 2023
How do I launch menuconfig for Zephyr?Oct 2023
How can I implement an HCI interface for the IG60-BL654?Jul 2023
Does the BL5340, BL5340PA, BL65x and Lyra BLE modules include the DC-DC LC filters on the module?Jun 2023
What is the Project Zephyr Discord?Jun 2023
How can I change the 32.768KHz Low Power Clock Source using nRF Connect SDK v2.x?Jun 2023
How is a static passkey configured for use in AT Interface Application/Firmware?Jun 2023
Is the command used to set a static passkey with AT Interface firmware, AT+PKEY, persistent through a reset or power-cycle?Jun 2023
Using STTY with the USB-SWDJun 2023
Do the NFC traces need to be controlled differential impedance between NFC1 and NFC2?Jun 2023
When working with AT Interface why am I not able to get the module down to 2uA low power mode documented in the Lower Power Mode Application Note?Jan 2023
Can I pair in vSP Mode with AT Interface ApplicationJan 2023
Do I have to use hardware RTS/CTS handshake with the Ezurio BLE modules?Dec 2022
What are the hardware design recommendations for the BL653/BL654 USB interface if not used?Dec 2022
Why does my BLE module have an extra 01 in front of its MAC address?Dec 2022
Does Ezurio support Nordic Enhanced Shock Burst (ESB)?Dec 2022
Can I stop the BL65x firmware upgrade batch file from closing?Dec 2022
Should I use nRFConnect SDK or nRF5 SDK with the Ezurio BL65x modules?Dec 2022
Do you support Bluetooth features like BLE Mesh, AoA (Angle of Arrival) and/or Angle of Departure (AoD) in your own AT Command Set Interface implementation?Dec 2022
Why is SWDIO/SWCLK shorted to GND on my board?Dec 2022
Is it possible to clear or reset a table in smartBASIC?Dec 2022
Can I read a file in SmartBASIC Interactive Mode with an AT Command?Dec 2022
How many concurrent connections I can get with BL654 loaded with AT Commands interface app code?Oct 2022
How can I interface with a BT510 without the Mobile App?Oct 2022
Can I load OTA application code into my BL654 USB Dongle P/N 451-00003?Oct 2022
Can I use the BL654 USB Dongle as USB HCI Bluetooth device?Aug 2022
Does the BL65x or BL5340 support Matter?Aug 2022
Why can’t I Re-open the UART when it closes when running AT Interface LPUART App?Aug 2022
How to avoid/disable module reset on UART break with SmartBASIC?Aug 2022
How can I read out the MAC address from a BLE module during test/production?May 2022
Is the BL5340 pin compatable with the BL654/653?Mar 2022
Do I have to go through BT qualification if I use the BL654 dongle in my product?Mar 2022
Do I still have to list/qualify my product with the BT SIG even if I don't use the BT logo?Mar 2022
How can a enable/disable particular BLE channels used for advertising/scanning or when in a connection?Mar 2022
Does Ezurio have example code for a Windows Demo App which enables scanning and connecting to Bluetooth Low Energy peripheral IoT devices?Dec 2021
What factors influence the actual TX rate of the controller?Dec 2021
Where can I find the appropriate arguments/parameters to use with the BleAttrMetadata() function used in many examples in the BL65x User Guide, as I only see BleAttrMetadataEx() listed which appears to have different arguments/parameters?Dec 2021
Can Pullups or Pulldowns be Disabled on Default UART PinsDec 2021
How Can I Change the BL65x Tx Power SettingDec 2021
How many SPI Interfaces does the BL65x supportDec 2021
How many I2C ports does the BL65x supportDec 2021
Why is the data I am sending in an advertisement PDU seem to be received as converted ASCII data?Dec 2021
How many bytes can BL65x modules support for Extended Advertising using smartBASIC?Dec 2021
How can I update and send Extended or Normal Advertisement data using AT Interface application?Dec 2021
What influence does the client have when it comes to notifications?Dec 2021
Why are multiple EMPTY_PDU are being sent from the Master per connection interval?Dec 2021
Error received when flashing custom Nordic application to DVK-BL65x: SVCALL(SD_SOFTDEVICE_ENABLE, uint32_t, sd_softdevice_enable(nrf_clock_lf_cfg_t const * p_clock_lf_cfg, nrf_fault_handler_t fault_handler)); Programming custom Nordic App to DVK-BL65xDec 2021
Can the BL5340 or BL65x use a different stack to support a hosted application?Dec 2021
What is the maximum number of characteristics that can be supported using smartBASIC?Dec 2021
How to open multiple BLE connection simultaneously with the SmartBASIC AT interface?Dec 2021
Is achieving the theoretical throughput of 2 Mbps possible with BLE radio with 2M PHY?Nov 2021
Is it possible to have multiple connections as a peripheral device on the BL65x modules?Nov 2021
Is there a way to extend the shelf life of Ezurio modules?? If the shelf life cannot be extended in any way, what are the consequences of using modules after shelf life?Nov 2021
What does the Bluetooth message "advertised data length corrected" indicate?Nov 2021
How do I select the 32.768kHz Low Power Clock Source in the new nRF Connect SDKNov 2021
Where can I download UwTerminal as referenced in the BT900 or BL600 User Guides?Apr 2021
Can I use Windows to scan for my BLE Peripheral and Connect to it?Apr 2021
Getting ERROR: JLinkARM DLL not found. Please reinstall latest JLinkARM when trying to flash BL65x module via the JTAG interface. How can this be resolved?Feb 2021
What could be causing additional power draw when in standby doze state?Feb 2021
What are the production programming options for the BL65x modules when using smartBASIC?Feb 2021
How do I program BL65x modules in production or in the field (Tag-Connect)?Feb 2021
Is it possible to use Nordic's UART Serial Port Service when a BL65x module is configured for UART Bridge Mode rather than using Ezurio's Virtual Serial Port Service?Feb 2021
Issues with Flashing custom firmware to BL65x using Segger Embedded Studios IDEFeb 2021
How can I connect a Bluetooth Low Energy Device to a PC?Jan 2021
How do you change the BAUD rate in the AT Interface Application for BL65x smartBASIC modules?Jan 2021
Do BL65x modules support Boundary Scan function?Jan 2021
Do you have a smartBASIC example for Android or iOS devices such as smartphones or tablets?Jan 2021
Is there protection from Hacking when using smartBASIC modules?Jan 2021
Online Xcompiler is not accessible is there a way to Xcompile a smartBASIC Application locally when using UwTerminalX?Jan 2021
How do I set parity on the BL65x?Jul 2020
Can I write/encode an NFC tag using the BL65x?Jul 2020
Can I load a smartBASIC application to the BL654 451-00004 dongle?Jul 2020
Can a BL65x firmware be updated OTA?Jul 2020
How do I exit autorun on the BL654 dongle?Jul 2020
Do I have to use the Segger branded debugger to program over the 2-wire SWD interface (JTAG) of the Nordic-based modules?Jul 2020
Can I use USB on the BL654 if I'm using smartBASIC?Jul 2020
The BL654 Dongle is not presenting as a Bluetooth AdapterJul 2020
How can BL65x module or dongle be used to receive data from a custom service running on another device?Jul 2020
Is it safe to run a Ezurio Bluetooth module through a PCBA wash cycle?Jul 2020
What is the module license key and what is it used for?Feb 2019
Is BT 5.0 extended range feature related to higher power on newer modules like BL654, Sable X-R2?Dec 2017
Can I use BL652/BL654 pair with BLE tag?Dec 2017
What's the total number of concurrent connections?Dec 2017
Can I XCompile a smartBASIC script without a module attached to UWTerminalX?Jul 2017
Which J-Link programmers work with the BL65x?Apr 2017
Which J-Links work with the Nordic-based Bluetooth modules? For example, BL65x, BL5340?Oct 2016
What is the easiest way to change the advertised Device Name in a smartBASIC Application?Oct 2016