We have been designing and manufacturing Bluetooth modules for over 20 years and have solutions spanning Classic Bluetooth, all the way to the latest Bluetooth Core 6.0 specifications.
Secure, low power, cost efficient modules based on innovative silicon from Nordic Semiconductor, Silicon Labs, Infineon and Qualcomm (CSR).
Every module in our portfolio is backed by our core support offerings:
| Bluetooth Version | Feature | Advantages | Improvement | End User Examples |
| v5.0 | LE Coded | Robust, reliable connections indoors and outdoors | 4 x Range | Whole house/building coverage/outdoor e.g. Nordic Semi tests drone connectivity to 750m outdoor range |
|---|---|---|---|---|
| 2M PHY | Faster data transfer, reduced TX/RX time | 2 x Speed | Lower latency, increased performance & faster data transfer for critical data e.g. swifter FW updates, download of logged sensor data | |
| Advertising Extension (AE) | More data capacity in Connectionless Services | 8 x Increase broadcast message capacity | Beacons & location/tracking services can be improved for greater data & information e.g. enhanced user experiences in facility tours | |
| Periodic Advertising | A more power-efficient way to perform scanning |
A more power-efficient way to perform scanning |
Bluetooth LE in connectionless scenarios, such as broadcast audio applications. |
|
| High Duty Cycle Non-connectable Advertising | Reduced the minimum advertising interval for non-connectable advertising | Reduces the minimum allowed Advertising Interval from 100ms to 20ms | Allows a rapid recognition of and response to advertising packets from devices like beacons | |
| LE Channel Selection Algorithm #2 | Improved Frequency Hopping | Improve communication reliability through reducing the probability of packet collisions |
Improves performance in busy radio environments. More optimal for LE Audio and co-location of devices operating in the 2.4GHz ISM band such as Wi-Fi and other BT devices | |
| v5.1 | Enhanced Direction Finding | Angle of Arrival/Departure (AoA/AoD). | Allows Bluetooth devices to determine the direction of a Bluetooth signal transmission |
AoA and AoD in conjunction with RSSI create high accuracy, interoperable positioning systems such as real-time locating systems (RTLS) and indoor positioning systems (IPS). |
| GATT Caching Enhancements | Consumes less energy by allowing clients to skip service discovery when nothing has changed. | Improved Energy efficiency and user experience issues for some types of products |
Bluetooth smart locks, Service discovery need only be performed the first time the user attempts to pass through a door with a smart lock. The user may perceive a delay during this first occasion but all subsequent times the user will experience a near instantaneous response from the smart lock. |
|
| Advertising Enhancement 1: Randomized Advertising Channel Indexing |
Reduces the potential for advertising packet collisions occurring | Improved scalability and reliability in busy radio environments | Improves performance in busy radio environments for co-location of devices operating in the 2.4GHz ISM band such as Wi-Fi and other BT devices | |
| Advertising Enhancement 2: Periodic Advertising Sync Transfer | Scanning device more energy efficient and can make possible some use cases that require precise timing in the exchange of data. |
Allows resource constrained devices to utilize periodic advertising | A smartphone could scan for sync packets from a TV and then pass them over a connection to an associated smart watch so that the watch can then benefit from using periodic advertising and scanning to acquire data from the TV. |
|
| v5.2 | LE Isochronous Channels (LE Audio) | Designed to support LE Audio | Allows the communication of time-bound data to one or more devices for time-synchronized processing. | LE Audio Music sharing, new standard for hearing aids and support assisted hearing systems in diverse locations, such as theaters, conferences, lecture halls, and airports, multilanguage audio systems |
| Enhanced Attribute Protocol | EATT supports concurrent transactions from different applications and has security advantages over unenhanced ATT | Provides an improved user experience on devices where there are multiple applications using the Bluetooth Low Energy (LE) stack at the same time |
Multiple concurrent applications such as announcements, audio and data | |
| LE Power Control | Possible for devices to dynamically optimize the transmission power used in communication between connected devices. | Maintain an optimal signal strength from both a signal quality and low- power-use perspective | Improves performance in busy radio environments for co-location of devices operating in the 2.4GHz ISM band such as Wi-Fi and other BT devices | |
| v5.3 | Periodic Advertising Enhancement | Improved energy efficiency and RX duty cycle | Reduced number of packets received from the controller and the associated processing requirements |
All applications |
| Connection Sub-Rating |
Able to switch up to a high duty cycle more quickly. Connections are also able to handle variable packet rates or bursty traffic in an efficient way. | Improved user experience | Bluetooth LE Audio products such as hearing aids and monitoring systems which use sensors. Sensors which can switch the connection up to a high duty cycle quickly so that accumulated sensor data can be uploaded over a higher bandwidth connection. |
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| Channel Classification Enhancement | Channel classification in Bluetooth LE may now be performed by the Peripheral device as well as the Central | Improve throughput and reliability through reducing the number of potential collisions |
Bluetooth LE Audio products such as streaming audio. |
|
| v5.4 | Periodic Advertising with Response (PAwR) | Exchange of application data using connectionless communication | Energy efficient (Battery Life), bi-directional, communication in a large-scale one-to-many topology |
Electronic Shelf Label (ESL) and applications needing to send and receive messages between a central hub device and a large number of other devices in a network |
| Encrypted Advertising | Secure broadcasting of data in advertising packets |
Connectionless communication or encrypted advertising and scan response packets | Broadcast topologies allowing portions of advertisement packet be exposed to any observer while other portions needing confidentiality can be read by an intended observer. | |
| LE GATT Security Levels Characteristic | Devices may now indicate the security mode and level required for all their GATT functionality | Adds Attribute Permissions | Door Lock for multitenant dwelling where only authorized users can access entry based on user list. | |
| Advertising Coding Selection | LE Extended Advertising now allows CODED Phy Selection | Longer range or higher throughput Extended Advertisement | Beacons & location/tracking services can be improved for greater data & information at longer distances or greater throughput | |
| v6.0 | Channel Sounding | Provides ToF of RF waves to determine distance within 10cm between two devices. | Major improvements to ranging accuracy, to 0.5 meter accuracy with a single antenna. | Proximity in industrial environments, door access control, indoor wayfinding, real-time location and logistics. |
| Decision-Based Advertising Filtering | Introduces Decision PDUs to allow devices to make decisions about whether extended advertising events are relevant or can be ignored. | Improves efficiency of scanning devices with extended advertising, improving link utilization and time utilization on the scanning device. | Improving performance in crowded environments such as busy warehouses and manufacturing environments. | |
| Monitoring Advertisers | Filter advertising events without losing awareness of whether the advertising device has gone out of range since last advertisement. | Cuts unnecessary high duty cycle scanning that accompanies scanning for out-of-range advertisers, and provides more accurate information about device availability. | Managing complexity in environments where Bluetooth devices are mobile, such as warehouse robots and mobile medical devices. Improves LE Audio user experience. | |
| Isochronous Adaptation Layer (ISOAL) Enhancement | New ISOAL framing mode which uses a max PDU size sufficient to carry whole larger upper layer data units without the need for segmentation. | Lower latency, better reliability, and better utilization of available bandwidth for transmitting large data frames. | Bluetooth streaming connections such as Bluetooth LE audio and Auracast, or high-throughput data streams. | |
| LL Extended Feature Set | Supports more features and mechanisms to read available features from other devices, plus notifications when the feature set changes on the controller. | Future-proofing for growing LE feature set, better interoperability by exchanging available features, and backwards compatibility to existing feature exchange mechanisms. | Adding new devices to an existing legacy Bluetooth ecosystem, such as adding to incumbent sensor networks or adding new HMIs to existing industrial equipment. | |
| Frame Space Update | Allows the timing between adjacent packets in a connection event or connected isochronous stream to be negotiable, as opposed to previously fixed 150 μs. | Flexibility to improve efficiency and throughput with shorter intervals, accommodate slower devices with longer intervals, or coexist with other technologies and avoid interference in crowded environments. | Better continuous high-bandwidth streaming for audio, firmware updates or better coexistence in busy industrial environments with multiple competing wireless signals. |
Ezurio’s global support organization is ready to help. With industry-renowned Field Application Engineering and Tier I support available worldwide, our experts can help you bring your design to market with our decades of experience in wireless and product design.
Our hardware is paired with multiple software offerings to help you develop your way. Choose from options like a familiar AT Command Set, our smartBASIC application engine, or full C code development via the Nordic or Silicon Labs SDKs.
EMC testing and certifications can increase development time and expenses. Our test engineers work with you from start to finish, providing pre-testing, antenna scans, and more to ensure your product meets compliance. And our broad distribution partnerships ensure you’re always covered for hardware availability.
Ezurio’s wireless modules come pre-certified with many antenna options, including some of our industry-first Flexible PIFA and inverted Flexible PIFA antennas. Our antenna portfolio is customizable with various antenna lengths and connectors, and with wide stock availability through our distribution partners. With our accredited test laboratories and free antenna scans, you can be certain your product meets emissions requirements and successfully leverages our modular approvals.
The only module and antenna manufacturer that offers our own on-site EMC testing approvals, which drastically reduces your risk and time to market. Let our onsite EMC Test engineers help you navigate the EMC certification process.
Whether you need a product tailored, customized or are looking for complete product development services, we use in-house expertise and strategic partnerships to bring your product to market faster with the results you want.
We offer a broad portfolio of cost-effective embedded antenna solutions that provide unmatched connectivity for your wireless devices. Let us help you find the right antenna pre-certified with our extensive module selection.
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When selecting a Bluetooth module, consider your application's specific requirements, including the need for Bluetooth Classic or Low Energy (Bluetooth® LE), data rate, transmission range, and power consumption. Evaluate the module's antenna type, vendor reputation, and compliance with relevant standards. The choice between Bluetooth Classic and Bluetooth LE depends on your project's needs for data transfer speed, range, and power efficiency.
Additionally, consider the module's interface options (such as UART, SPI, I2C, or USB) to ensure compatibility with your system. The chipset is crucial for performance and capabilities, so choose from reputable manufacturers. Lastly, select the appropriate packaging type (in-line, surface mount, or serial port adapter) based on your production volume and integration method.
Ezurio did provide breakout boards for our older BL600(EOL) modules but we do not produce breakout boards for any of our current range of Bluetooth modules as of 2024. This includes all BL65x, BL53xx, BL54xxx, BTxxx, Vela and Lyra modules. We do provide development kits for all of our module offerings.
Bluetooth Classic is optimized for continuous, high-throughput data transfer, making it suitable for applications like audio streaming, file transfers, and wireless peripherals. It typically consumes more power and is designed for use cases where maintaining a constant connection is crucial. Bluetooth Classic supports higher data rates and longer transmission distances, which are essential for applications that require robust and sustained communication.
In contrast, Bluetooth Low Energy (Bluetooth LE) is tailored for applications that prioritize power efficiency & intermittent data transfer. Bluetooth LE consumes significantly less power, making it ideal for battery-powered devices that need to operate for extended periods without frequent recharging. While Bluetooth LE has a lower data rate compared to Bluetooth Classic, it offers sufficient performance for periodic data transmission and control tasks. Bluetooth LE's design focuses on short bursts of data transfer, which conserves energy and extends battery life, making it a preferred choice for modern IoT applications.
Dual-mode Bluetooth refers to a single device's ability to support both classic Bluetooth (also known as Bluetooth BR/EDR) and Bluetooth Low Energy (Bluetooth LE).
Our Canvas™ software suite enables rapid embedded development across our MCU-based wireless products. Cross-chipset middleware, easy-to-use wireless APIs, on-module scripting and intuitive desktop/mobile tools are all available to dramatically ease embedded development.
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Do you belong to an enterprise looking to create revenue from your customer base through a connected solution? Do you consider your business to be “mission-critical”? Are you looking for help on...
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In this video, BlueKitchen demonstrate LE Audio using a Raspberry pi connected to our Sona IF513 Wi-Fi / Bluetooth module.
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Bluetooth technology is constantly growing, not only enhancing existing applications but also enabling entirely new use cases through performance improvements and expanded feature sets. On September 3, 2024, the Bluetooth Special Interest Group (SIG) unveiled the latest version of the Bluetooth Core Specification: Bluetooth 6.0.
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As wireless technologies continue to evolve, understanding the nuances between Bluetooth Low Energy (BLE) and Bluetooth Classic becomes crucial for choosing the right communication protocol for IoT applications.
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Our own Ryan Erickson speaks at the Embedded Open Source Summit about our Canvas Software Suite and how it leverages Zephyr to speed up wireless product design.
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Dual-mode Bluetooth stands out as a crucial technology for the Internet of Things (IoT) era, seamlessly integrating classic Bluetooth and Bluetooth Low Energy (BLE).
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Aurawave combines Cloud2GND engineering, Ezurio module performance, and Nordic's nRF5340 technology to accelerate LE Audio innovation.
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14 August 2025 – Akron, Ohio – Ezurio, a global leader in connectivity, proudly announces the release and immediate availability of the BL54L15μ Series , a breakthrough Bluetooth® Low Energy...
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The truth about securing regulatory compliance is that it’s costly and it takes a lot of work. Being found to be non-compliant has no end of consequences for a business, and can ultimately end up in a failed product, a pile of costs, and a wounded reputation.
The Future of Bluetooth Audio, Defined This week, the Bluetooth Special Interest Group (SIG) announced the completion of the specifications for LE Audio, Bluetooth’s low-power,...
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Discover how to protect your IoT devices against cyber threats with a security strategy that spans the entire product lifecycle.
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Auracast™ technology is at the forefront of wireless audio streaming, offering a seamless and reliable user experience in environments such as public venues, conference halls, and personal audio...
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Update: This product is no longer available. For LE Audio development, Ezurio recommends our Aurawave AW100 Series - Auracast™ Transmitter . Akron, Ohio – November 23, 2021 –...
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Experience a new pinnacle of flexibility, performance, efficiency, and security with our new BL54L10 series, built on Nordic Semiconductor's powerful nRF54 silicon.
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Unleashing enhanced processing power, expanded memory, and innovative peripherals, the BL54L15µ is the ultimate choice for low power connectivity, in the smallest footprint (6.3 x 7.9 mm).
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The Importance of Taking a Holistic Approach to Medical IoT Device Security
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Only after a secure groundwork is laid can development teams efficiently focus on building the core application logic and perfecting the user experience.
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Powered by the Nordic's nRF54L15 SoC, our compact BL54L15 modules deliver secure and robust Bluetooth LE (qualified against Bluetooth Core 6.0) and 802.15.4 with flexible programming via Canvas...
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