BL5340 Series - Multi-Core Bluetooth 5.2 + 802.15.4 + NFC Modules

Recommended for New Design (RND)

Overview

New: LE Audio Evaluation Kit, by Laird Connectivity and Packetcraft!

Laird Connectivity’s newest edition to their Nordic Semiconductor based Bluetooth LE portfolio, is the most advanced, most secure and highest performing dual core MCU architecture wireless solution available. The BL5340 series of robust, tiny modules feature the Nordic nRF5340 SoC. It directly targets the highest performance with the lowest power budget.

Nordic nRF5340 – 7x7 QFN with 48 GPIOs available.

  • Dual Cortex M33 microcontroller cores
    Application processor - 128/64 MHZ M33 – 1MB Flash/512KB RAM (Including DSP Instructions)
    Network processor - 64 MHz M33 – 256KB Flash/64KB RAM
  • Extended Industrial Temperature Rating (-40° to +105 °C)
  • Antenna choice – integrated pre-certified PCB or Trace pad options
  • Small form factor: as small as 15 x 10 x 2.2 mm (BL5340)
  • Development choice: Zephyr RTOS or utilize Nordic nRF Connect SDK, or contact Packetcraft for LE Audio applications
  • Bluetooth LE: Peripheral/Central, 2 Mbps (high throughput), LE Coded (long range), AoA/AoD, LE Audio / Isochronous Channels, Mesh
  • Advanced Security: ARM TrustZone®, Root of Trust, ARM CryptoCell-312 & KMU, Access Control Lists, System Protection Unit, Encrypted QSPI
  • Firmware Over the Air (FOTA) via MCUboot and Zephyr
  • Fully featured development kits to jump start Bluetooth LE development

New LE Audio Evaluation Kit -
From Laird Connectivity and Packetcraft!

Our new LE Audio EVK is ready to go out of the box to test the latest LE audio use cases. The kit contains: 

  • 3 x Laird Connectivity BL5340 DVKs
  • 3 x BL5340 AIB v1
  • 1 x ground loop isolator
  • 3 x audio cables TRS 1/8” (3.5mm)
  • 3 x USB cables for power
  • Pre-loaded LE Audio Eval Kit binary firmware
  • Quick Start Guide (QSG)

Learn More

ek-b02-bl5340-setup-diagram

Specifications

Bluetooth Version
5.2
Chipset
Nordic nRF5340
Antenna Options
Integrated or External via SMT Pad
Certifications
FCC, ISED, EU, UKCA, MIC, AS-NZS, Bluetooth SIG
Data Rate
1 Mbps, 2 Mbps, 500 kbps, 125 kbps
Logical Interfaces
USB, UART, QSPI, SPI, I2S, I2C, PDM, PWM, ADC, GPIO, QDEC, Comparator, Low Power Comparator
Operating Temp (Max) (°C)
105 °C
Operating Temp (Min) (°C)
-40 °C
Power Consumption
BL5340: 5.3 mA @ +3 dBm TX
4.1 mA @ 0 dBm TX
1.3 µA @ System On
.9 µA @ System Off
Programming Options
Nordic nRF Connect SDK
Zephyr
Transmit Power (Radiated)
Up to +5 dBm
Wireless Specification
Bluetooth 5.2
802.15.4 (Thread and Zigbee)
NFC
Part Group Antenna Type
453-00052-K1 BL5340 Development Kit Integrated Antenna
Part Group Dimension (Length - mm) Dimension (Width - mm) Dimension (Height - mm) Transmit Power Bulk or Single Packaging Antenna Type Product Type Technology OS/Software System Architecture Chipset (Wireless) Logical Interfaces Frequency Range (Min) Frequency Range (Max) Frequency Range 2 (Min) Frequency Range 2 (Max)
453-00052C BL5340 Module 15 mm 10 mm 2.2 mm Up to +5 dBm Bulk Cut Tape Integrated Antenna Embedded Module Bluetooth 5.2, NFC Nordic SDK, Zephyr Hostless Nordic nRF5340 USB, UART, QSPI, SPI, I2S, I2C, PDM, PWM, ADC, GPIO, QDEC, Comparator, Low Power Comparator 2402 MHz 2480 MHz 13.56 MHz 13.56 MHz
Part Group Dimension (Length - mm) Dimension (Width - mm) Dimension (Height - mm) Transmit Power Bulk or Single Packaging Antenna Type Product Type Technology OS/Software System Architecture Chipset (Wireless) Logical Interfaces Frequency Range (Min) Frequency Range (Max) Frequency Range 2 (Min) Frequency Range 2 (Max)
453-00052R BL5340 Module 15 mm 10 mm 2.2 mm Up to +5 dBm Bulk Tape/Reel Integrated Antenna Embedded Module Bluetooth 5.2, NFC Nordic SDK, Zephyr Hostless Nordic nRF5340 USB, UART, QSPI, SPI, I2S, I2C, PDM, PWM, ADC, GPIO, QDEC, Comparator, Low Power Comparator 2402 MHz 2480 MHz 13.56 MHz 13.56 MHz
Part Group Antenna Type
453-00053-K1 BL5340 Development Kit Trace Pin
Part Group Dimension (Length - mm) Dimension (Width - mm) Dimension (Height - mm) Transmit Power Bulk or Single Packaging Antenna Type Product Type Technology OS/Software System Architecture Chipset (Wireless) Logical Interfaces Frequency Range (Min) Frequency Range (Max) Frequency Range 2 (Min) Frequency Range 2 (Max)
453-00053C BL5340 Module 15 mm 10 mm 2.2 mm Up to +5 dBm Bulk Cut Tape Trace Pin Embedded Module Bluetooth 5.2, NFC Nordic SDK, Zephyr Hostless Nordic nRF5340 USB, UART, QSPI, SPI, I2S, I2C, PDM, PWM, ADC, GPIO, QDEC, Comparator, Low Power Comparator 2402 MHz 2480 MHz 13.56 MHz 13.56 MHz
Part Group Dimension (Length - mm) Dimension (Width - mm) Dimension (Height - mm) Transmit Power Bulk or Single Packaging Antenna Type Product Type Technology OS/Software System Architecture Chipset (Wireless) Logical Interfaces Frequency Range 2 (Min) Frequency Range (Max) Frequency Range 2 (Min) Frequency Range 2 (Max)
453-00053R BL5340 Module 15 mm 10 mm 2.2 mm Up to +5 dBm Bulk Tape/Reel Trace Pin Embedded Module Bluetooth 5.2, NFC Nordic SDK, Zephyr Hostless Nordic nRF5340 USB, UART, QSPI, SPI, I2S, I2C, PDM, PWM, ADC, GPIO, QDEC, Comparator, Low Power Comparator 2402 MHz 2480 MHz 13.56 MHz 13.56 MHz

Photo Gallery

453-00052R

453-00053R

453-00052C

453-00053C

453-00052-K1

453-00053-K1

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Documentation

Name Part Type Last Updated
Product Brief - BL5340 Series All Product Brief 11/29/2021
Datasheet - NFC Flex PCB Antenna All Documentation 03/10/2022
3D Model - 453-00052 - BL5340 with Internal Antenna All Technical Drawings 06/18/2021
3D Model - 453-00053 -BL5340 with External Antenna Trace Pin All Technical Drawings 06/18/2021
PCB footprint (DXF and Altium format) - BL5340 Series All Technical Drawings 12/23/2021
SCH Symbols (Altium format) - BL5340 Series All Technical Drawings 12/23/2021
Schematic – DVK-BL5340 R2.1 All Technical Drawings 06/18/2021
Datasheet - BL5340 Series All Datasheet 01/10/2022
AS/NZS Certifications - BL5340 All Certification 06/01/2021
EU Certifications - BL5340 All Certification 06/01/2021
FCC Certifications - BL5340 All Certification 06/01/2021
ISED (Canada) Certifications - BL5340 All Certification 06/01/2021
MIC Certifications - BL5340 All Certification 06/01/2021
User Guide - BL5340 Development Kit All Documentation 09/01/2021
Application Note - BL5340 Low Power Modes All Documentation 09/02/2021
Regulatory Information - BL5340 All Certification 02/11/2022
Zephyr RTOS Board File for BL5340 DVKs (External Link) All Software 08/25/2021
Release Notes - BL5340 BLE Gateway Firmware OOB Demo (480-00115) v5.1.9 All Documentation 08/25/2021
West manifest for BL5340 including Sample Applications - GitHub All Software 08/26/2021
Sample Application & Guide - Bosch BME680 sensor demo on DVK-BL5340 - GitHub All Software 08/26/2021
Out of Box (OOB) Application & Guide for DVK-BL5340 - GitHub All Software 09/01/2021
Sample Application & Guide - Accelerometer data to LCD display using DVK-BL5340 - GitHub All Software 08/26/2021
Application Note - OOB Demo Architecture Description - BL5340 Development Kit All Documentation 08/26/2021
Application Note - Edge Impulse Vibration Demo - BL5340 Development Kit All Documentation 09/01/2021
Application Note - Using Radio Test Mode - BL5340 Series All Documentation 09/01/2021
Application Note - Using Direct Test Mode - BL5340 Series All Documentation 09/01/2021
Release Notes - BL5340 BLE Gateway Firmware OOB Demo (480-00116) – LwM2M variant v5.1.9 All Documentation 09/13/2021
Release Notes - BL5340 BLE Gateway Firmware OOB Demo (480-00117) – CT variant v5.1.9 All Documentation 09/13/2021
Release Notes - BL5340 BLE ESS (Environmental Sensing Service) Firmware (480-00119) v1.0.0 All Documentation 09/13/2021
Release Notes - BL5340 Vibration Demo Recorder Firmware (480-00120) v1.0.0 All Documentation 09/13/2021
Release Notes - BL5340 Vibration Demo Classifier Firmware (480-00121) v1.0.0 All Documentation 09/13/2021
Release Notes - BL5340 Vibration Demo Display Firmware (480-00134) v1.0.0 All Documentation 09/13/2021
Application Note - BT 5.x Feature Comparison for Laird Connectivity Bluetooth Modules All Documentation 02/24/2022

FAQ

Where can I find the BL5340 firmware manifest repo?

What does the BL5340 DVK out of box demo do?

The BL5340 out of box demo scans for BT510 and BL654 BME280 sensors and sends the data to the cloud via ethernet with the data visualised on a webpage.

More details can be found here BLE_Gateway_Firmware/readme_aws.md at main · LairdCP/BLE_Gateway_Firmware · GitHub

 

What is the AIB in the BL5340 audio evaluation kit?

AIB stands for audio interface board. Three of which are supplied with the BL5340 Audio Evaluation kit and provide standard 3.5mm stero audio jack input/output for the evaluation kit.

Where can I find sample applications for the BL5340?

A selection of sample applications for the BL5340 can be found in our Github repository.

https://github.com/LairdCP/BL5340_Sample_Apps

Can the BL5340 or BL65x use a different stack to support a hosted application?

Theoretically as long as whoever 3rd party BLE stack is used is tested and supported on Nordic nRF5340 or nRF528xx used on BL65x modules.

Laird would not have tested anything other than Zepher/nRF SDK.

A 3rd party CODEC could be used as well as long as it is targeted for nRF5340. However, licensing would need to be considered.

How do a develop code for the BL5340?

Unlike previous generations of Nordic based Laird BLE modules, the BL5340 does not support out Smartbasic programming language.  Development is therefore done in C using Zephyr RTOS or the Nordic nRF Connect SDK.

For more information on developing for the nRF53 based BL5340 modules see the following links

BL5340 Series - Multi-Core NFC, Bluetooth 5.2 + 802.15.4 WiFi Module (lairdconnect.com)

Welcome to the nRF Connect SDK! — nRF Connect SDK 1.6.99 documentation (nordicsemi.com)

Laird Connectivity BL5340 DVK — Zephyr Project Documentation

 

Do I need any additional hardware for the BL5340 audio evaluation kit?

The BL5340 audio evaluation kit comes with three BL5340 EVK and 3 Audio interface boards with 3.5mm stereo audio jacks. The only additional hardware required is audio source with a suitable 3.5mm socket, such as an MP3 player or Smartphone and an audio sink(s) with suitable 3.5mm socket, such as a  (active) speaker.

Can the BL5340 run Smartbasic?

Unfortunately the BL5340 is not able to run Laird Smartbasic. instead you should use C with the Nordic SDK/Zephyr.

What is the BLE passkey for the BL5340 out of box demo?

When running the BL5340 DVK out of box demo the Pinnacle Connect smartphone app will attempt to pair with the BL5340 DVK. You will be prompted to eneter a pass key, the passkey is 123456 and is also displayed on the BL5340 DVK LCD screen.

Does the BL5340 support classic audio profiles such as A2DP?

No. The BL5340 is a single mode BLE only module. it does not support BT classic audio profiles such as HSP, HFP or A2DP.

However, LE Audio does support the same use cases and more but with new profiles and services.

How do you flash code to the BL5340?

Firmware can be flashed to the BL5340 using different methods including (click for details):

Where can I download the BL5340 out of box demo firmware?

if you would like to download the out of box demo firmware then it can be found at the following link. you might want to do this if you have erased the flash on the BL5340 DVK.

https://github.com/LairdCP/BL5340_Firmware_Manifest/releases

Where can I find the BL5340 Zephyr RTOS board files?

Board files can be found at

Laird Connectivity BL5340 DVK — Zephyr Project Documentation

The BL5340 Development Kit provides support for the Laird Connectivity BL5340 module which is powered by a dual-core Nordic Semiconductor nRF5340 ARM Cortex-M33F CPU. The nRF5340 inside the BL5340 module is a dual-core SoC based on the Arm® Cortex®-M33 architecture, with:

  • a full-featured Arm Cortex-M33F core with DSP instructions, FPU, and Armv8-M Security Extension, running at up to 128 MHz, referred to as the application core

  • a secondary Arm Cortex-M33 core, with a reduced feature set, running at a fixed 64 MHz, referred to as the network core.

The bl5340_dvk_cpuapp build target provides support for the application core on the BL5340 module. The bl5340_dvk_cpunet build target provides support for the network core on the BL5340 module. If ARM TrustZone is used then the bl5340_dvk_cpuapp build target provides support for the non-secure partition of the application core on the BL5340 module.

Can I use a second BL5340 DVK as a sensor for the BL5340 DVK out of box demo?

Yes. The BL5340 DVK comes with a BT510 BLE sensor for use with the out of box demo. But you can also emulate a BL654 BME280 sensor for use with the BL5340 OOB demo by loading the ESS hex files available at the link below

https://github.com/LairdCP/BL5340_Firmware_Manifest

Once loaded the BL5340 will function as a BL654 BME280 sensor and advertise the same advert format.

This application acts as peripheral environmental sensor allowing central devices to connect and monitor temperature, humidity, pressure and dew point. Please note that this is supplied as a test application for the Pinnacle 100 development kit and is for evaluation use only, it has not been tested through PTS for confirming that it adheres to the ESS service specification.

More information can be found here Common_Sample_Apps/ess_demo at master · LairdCP/Common_Sample_Apps · GitHub

Is LE Audio mandatory with BT5.2?

No. LE Audio is an optional feature of BT5.2. BT devices can be qualified to BT5.2 and not support LE Audio. It is possible to be qualified to BT5.2 errata only and not have LE Audio support.

Is the BL5340 pin compatable with the BL654/653?

No, the BL5340 and BL653/BL654 are not the same pin mapping or layout, a whole new design is required for a PCB to have a BL5340 fitted. That being said, the reserved pins on the BL653/BL654 are:

  • QSPI (BL654 only, no QSPI on BL653)
  • SPIM4 (SPIM4 only, this is the high-speed SPI port at 32MHz)
  • TRACE
  • 32KHz Crystal
  • NFC

On the BL5340, the list is similar:

  • QSPI
  • SPIM4 (SPIM4 only, this is the high-speed SPI port at 32MHz)
  • I2C (only if they plan to use 1Mbps I2C which might be known as I3C?)
  • TRACE
  • 32KHz Crystal
  • NFC

Does the BL5340 support LE Audio?

Yes. The BL5340 hardware supports LE audio as part of BT5.2.

The BT5.2 specification defines the building blocks for LE audio including support for the following

  • Multi channel
  • Audio sharing
  • Improved audio quality
  • mixed voice and music applications
  • Low latency

However, the BL5340 needs to be mated with a suitable BLE audio stack with support for the required profiles and services. Laird Connectivity does not provide the LE Audio stack and relies on 3rd parties. Contact a Laird FAE for more details.

How can I read out the MAC address from a BLE module during test/production?

A fast and convenient way to read out the MAC address of each module during a test/production process would be through SWD from FICR (Factory information configuration registers) registers DEVICEADDR[0] and DEVICEADDR[1]. The following command will read the MAC address from our BLE modules:

nrfjprog --memrd 0x100000A4 --w 8 --n 6

Please note that reading from memory through SWD will halt the CPU. If you need your application firmware to start afterwards (like for performing some test sequence) you would have to run the CPU with

nrfjprog –run

More information on FICR registers are available in the respective data sheets, like this for nRF52840 / BL654.

How does LE Audio quality compare to Classic Audio quality?

Classic Bluetooth uses a codec called SBC. Its been used in BT classic devices for a very long time. Its also mandatory for audio applications, providing a common codec that all BT classic audio devices have access to, ensuring interoperability.

Other 3rd party codecs are also available such as aptX and AAC amongst others. These 3rd party codecs often provide improved audio quality or reduce latency but because they are no mandatory in the BT specification not all devices support them. Some are even proprietary to specific silicon vendors.

LE Audio introduces a new codec called LC3. LC3 gives developers options. With LC3 you can get the same or better audio quality at lower bitrates than with SBC or you can use higher bit rates and get even better quality audio.

A lower bit rate will result in less time on air and therefore potentially lower power consumption, which may be important for a battery powered device. Alternatively developers can choose a higher bit rate for maximum quality.

 

What audio scenarios can I test with the BL5340 audio evaluation kit?

The BL5340 Audio Evaluation Kit allows you to test out of the box the following scenarios

  1. Stereo Speaker: Stereo audio source to stereo audio sink 
  2. True Wireless Stereo: Stereo audio source to seperate left and right audio using LC3, 80kbps, 48hz and 7.5ms frame size

additional scenarios are available in advanced demonstration mode. Contact www.packetcraft.com/support for more details

Why does the BL5340 require use of nRF Connect SDK and not the previous nRF5 SDK?

Nordic Semiconductor needed to adopt a native RTOS for their latest generation of devices such as the nRF53 used in the BL5340. nRFConnect is Nordics first fully RTIOS based SDK and will be their active SDK going forward. Their previous SDK called nRF5 SDK will receive maintenance updates only going forward.

For more information see

nRF Connect SDK and nRF5 SDK statement - Blogs - Nordic Blog - Nordic DevZone (nordicsemi.com)

Do I still have to list/qualify my product with the BT SIG even if I don't use the BT logo?

Yes, you need to qualify/list any product that uses BT SIG intellectual property, even if you do not use the logo or require interoperability with other BT devices. see here for more details. Qualify Your Product | Bluetooth® Technology Website

 

is LE audio interoperable with BT calssic audio?

No. LE audio and classic audio are both subsets of BT audio but are not interoperable. In time it is likely that most BT classic audio use cases will be replaced by LE Audio.

What is the BL5340 Edge Impulse Vibration Demo?

The Edge impulse vibration demo shows how the power of the dual core BL5340 can be used for artificial intelligence applications.

The demo has 3 main parts

  • Capture a training dataset
  • Train the neural network
  • Run the impulse

 The is a video overview of the demo available on Youtube

https://youtu.be/hmrx5gXm-YM

What is the latency of LE Audio?

LE Audio makes use of a new codec called the Low Complexity Communications Codec.

This new codec provides lower latency then the standard BT Classic Audio coded (SBC).

Encoding time is in the region of 10ms for LC3.

This allows for a BLE Audio link using LC3 to encode, transmit and decode audio in he time sound travels in free space. This opens up application such as hearing aids that are very sensitive to latency.

My BL5340 DVK does not appear to power up (no LED) what might the problem be?

Check the postion of SW4 and make sure it it is set correctly. For example if powering the DVK from USB set the switch to USB_5V. from the factory it may be set to DC_5V.

What topologies does LE Audio support?

LE Audio supports the following topologies

Unicast

  • Single peer to peer, which can be multichannel and bidirectional
  • Separate left and right (earbuds)
  • Multiple pairs of left and right (multiple earbuds)

Broadcast

  • Connectionless broadcast with no acknowledgements
  • Multiple channels
    • Stereo left and right
    • different language channels

Unicast allows for native stereo earbud type applications, built directly into BT5.2.
Broadcast allows for many new use cases such as public announcements in airports/railway stations. A cinema showing a film but with multiple language channels.