The $29 Open-Source AirTag

The $29 Open-Source AirTag

Sticking a Bluetooth tracker on your keys or slipping one into your luggage is a lifesaver. But if you’re a developer or maker who wants to build something custom, Big Tech’s closed ecosystems stand completely in your way. If you want to play in Apple or Google's sandbox, you play by their rules.

Until now.

Nordic Semiconductor has officially broken open the tracking space with the release of the nRF54L15 Tag. For just $29, this tiny, coin-cell-powered development board acts exactly like a hackable AirTag—giving you full access to massive crowd-sourced tracking networks without the corporate restrictions.

Coin-cell powered Nordic nRF54L15 Tag prototyping platform supports Bluetooth Channel Sounding, Matter, Edge AI - CNX Software

Dual-Network Power (No GPS Needed)

Instead of relying on power-hungry, bulky GPS hardware, the nRF54L15 Tag leverages the crowdsourced power of the smartphones already around us.

  • Apple Find My & Google Find Hub: Out of the box, the board supports both ecosystems. It pings nearby phones anonymously to report its location.
  • Ready-to-Go Software: Nordic provides full software support directly through the nRF Connect SDK, making network integration painless.

Next-Gen Distance Tracking: Enter Bluetooth 6.0

Standard trackers tell you a device is somewhere in the room. The nRF54L15 Tag takes accuracy to the next level using a specialized dual-antenna design built for Bluetooth Channel Sounding (a signature Bluetooth 6.0 technology).

What it means: Instead of just judging signal strength, it calculates the exact physical distance between devices.

The potential: This opens the door for highly secure proximity access systems, hyper-precise asset tracking, and smart item-finding applications.

It’s Way More Than Just a Tracker

While it's the size of a standard key fob (just 33 mm in diameter), Nordic crammed a staggering amount of hardware onto this circular board. It's actually a fully operational Edge AI and Smart Home platform:

  • Built-in Sensors: It features a 6-axis IMU, a low-power accelerometer (for motion-triggered wake-up), and an environmental sensor.
  • Onboard UI: Packed with a user-programmable button and an RGB LED, plus empty hardware footprints to solder your own buzzers, extra buttons, or flash memory.
  • Embedded Machine Learning: Fully compatible with nRF Edge AI tools, allowing you to run machine learning models right on the device for gesture recognition or anomaly tracking.
  • Smart Home Ready: Includes native, out-of-the-box support for Matter and Thread protocols.

Open Hardware, Ready to Prototype

Nordic isn't hiding anything behind proprietary secrets. To help you accelerate your builds, the board ships with:

  • Preloaded firmware
  • Complete schematics and PCB layout files
  • Gerber files and a full Bill of Materials (BOM)

The Verdict: Whether you want to prototype a custom enterprise asset tracker, a battery-powered smart home weather station, or a hyper-secure smart lock, the nRF54L15 Tag gives you the ultimate foundation. You can grab one today for just $29 and program it using any standard Nordic development kit or a SEGGER J-Link debugger.

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