A Bluetooth stack built for the future
BlueNox™ is a full Bluetooth Classic, LE and LE Audio stack, built for the latest features, links that can't afford to drop, and wireless audio that sounds like a cable.
Cutting-edge products need a cutting-edge stack.
BlueNox™ gives you the features that make a product stand out, ready to build on, in one Bluetooth stack.
Two places it pushes furthest
INDUSTRIAL BLUETOOTH
Hardened for links that can't drop.
Factories, plants and job sites are brutal on radio. BlueNox is built to stay connected there, and to show you exactly how every link and device is doing.
- Hardened for harsh RF. Stays connected through motor noise, metal and a crowded 2.4 GHz band, and shrugs off malformed packets.
- Quality of service you control. Put alarms and control commands ahead of routine telemetry, so the data that matters always gets through.
- See inside every link. Live signal strength, retries and throughput for each device. Spot a weak link before it turns into downtime.
- Manage the whole fleet. Configure, update and check on every device over Bluetooth, from a phone or a gateway.
CUTTING-EDGE AUDIO
Wired performance, without the wires.
Standard Bluetooth audio squeezes music until the detail is gone. BlueNox carries high-resolution audio over Classic and LE Audio, so wireless finally sounds like the cable.
- High-resolution codecs. Studio-grade detail over the air.
- Classic and LE Audio, one stack. Works with today's phones and the next generation of earbuds and hearing devices.
- Low latency. Sound that stays locked to the picture for gaming and video.
- Broadcast to a crowd. One source, unlimited listeners: tour groups, gyms, gates and lecture halls.
Stop waiting on your chip vendor.
Vendor stacks ship as closed libraries tuned for reference designs. When standard pairing is too weak for your threat model, or a feature you need isn't on their list, you file a ticket and wait.
BlueNox is built and maintained by the team that wrote it. We add the latest Bluetooth features as they arrive and build every release around real products, so you never wait on a vendor’s roadmap.
Isn't Bluetooth a solved problem?
Every chip ships with a free stack and every phone speaks Bluetooth. So why do so many products still drop connections, fail pairing or get cloned?
“Pairing keeps it secure.”
Pairing proves two radios agreed on a key. It doesn't prove the phone, app or accessory is genuine, which is why cloned accessories pair just fine.
“It works with every phone.”
Every iOS and Android release handles bonding, reconnection and background apps a little differently. Your support inbox finds the edge cases first.
“The vendor stack is free.”
Until you need a feature it doesn't have, or want to change chips. Then your firmware is tied to someone else's roadmap.
“LE Audio is ready to go.”
The spec is ready. Phones, earbuds and hearing devices are still catching up, and Classic audio has to keep working alongside it.
Bluetooth is everywhere. Bluetooth done right is still rare.
Talk to a Bluetooth engineerEverything the vendor SDK wouldn't let you do.
Custom authentication
Verify that a phone, accessory or charger is genuine before it gets access, beyond what Bluetooth pairing checks.
Features on your schedule
Custom profiles, vendor-specific commands and behavior changes in the host, without waiting for a vendor release.
One stack across chips
BlueNox runs as the host on your chip's controller over standard HCI, so your application code moves with you when you change silicon.
Secure by design
Crypto from NoxTLS, so authentication and link security share one audited codebase.
Qualification support
Help listing your product with the Bluetooth SIG.
Debug down to HCI
Logs and tooling that show what the stack did and why, from connection events to security failures.
From the plant floor to the playlist.
Industrial monitoring
Sensor networks that keep reporting through motors, metal and Wi-Fi noise.
Machines, tools and access
Authenticated control where a dropped or rogue connection is a safety issue.
Premium headphones and speakers
High-resolution codecs for listeners who can hear the difference.
Hearables and LE Audio
LE Audio and broadcast for earbuds and hearing devices, with Classic audio still working alongside.
BlueNox™ Specifications
- Industrial features
- Hardened stack, quality of service, live link data, device management
- Modes
- Full Bluetooth Classic (BR/EDR), Bluetooth LE and LE Audio
- Bluetooth version
- Bluetooth 7.0*
- Architecture
- Host + Controller. Run the full BlueNox stack, or the host over standard HCI on your chip's own controller.
- Controller support
- Nordic nRF52 / nRF53 / nRF54, TI CC135x, TI CC2754, EFR32BG, ESP32-S3, ESP32-S31
- Host platforms
- Linux, Windows, STM32F4, and any host MCU or processor over HCI with a TI CC2564x (CC256x) controller
- Operating systems
- Zephyr, with BlueNox running alongside the rest of your Zephyr app
- Features
- LE Audio, Channel Sounding, High Data Throughput (HDT)
- Licensing
- Contact us for licensing terms
*BlueNox Stack Qualification pending
From the team that writes about Bluetooth for a living.
We've built Bluetooth products since 2013, from a module that reached nearly 200 m to LE Audio designs.
Read our Bluetooth library →Questions engineers ask
Does BlueNox replace my vendor's Bluetooth stack?
BlueNox replaces the vendor's host stack and optionally the Controller stack for a complete solution.
Do phone apps need anything special?
Custom authentication needs a small library in your iOS or Android app. Our mobile team can build it.
The Bluetooth® word mark and logos are registered trademarks owned by Bluetooth SIG, Inc., and any use of such marks by Argenox is under license. BlueNox™ is a trademark of Argenox Technologies LLC. Other trademarks and trade names are those of their respective owners.
Tell us what your Bluetooth can't do. We'll make it.
Tell us your chip and the feature you're missing.
