DESCRIPTION
XIAO nRF54L15 is a powerful yet compact development board built around Nordic's nRF54L15 SoC, featuring a 128 MHz Arm Cortex-M33 core with 1.5 MB NVM. This thumb-sized board excels in modern IoT applications with comprehensive wireless connectivity including BLE 6.0, Matter, Thread and Zigbee protocols. With ultra-low power consumption, it's ideal for battery-powered IoT devices. The tiny board offers 16 GPIOs, USB Type-C interface, and onboard battery charging capabilities. Enhanced security features ensure robust protection for IoT deployments. Developers can leverage the Nordic nRF Connect SDK and PlatformIO with Zephyr RTOS support for efficient development workflows.
Note:
- XIAO nRF54L15 does not support the Arduino The wiki provides Nordic SDK example projects.
- If you plan to use XIAO expansion boards, the models currently supported by XIAO nRF54L15 are: Expansion Base, Grove Base, ePaper Breakout Board, L76K GNSS Module, 1-Channel Relay, ePaper Driver Board.
- Other expansion boards are hardware-compatible only for now; software adaptation is required by developers.
- Official software support is in progress — please be patient.
FEATURES
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Powerful SoC with Advanced Connectivity & Security: XIAO nRF54L15 is built on Nordic's nRF54L15 SoC with a 128 MHz Arm Cortex-M33 core (1.5 MB NVM) and dedicated RISC-V security coprocessor. This dev board supports multiple wireless protocols including BLE 6.0, Matter, Thread, and Zigbee (IEEE 802.15.4-2020). It also features new 4 Mbps mode for proprietary 2.4 GHz protocols. And it's compatible with major ecosystems like Amazon Sidewalk, Apple Find My, and Google Find My Device through nRF Connect SDK. Comprehensive security features include secure boot, secure firmware updates, secure storage, TrustZone-enabled trusted execution environment, cryptographic acceleration with side-channel protection, and tamper detection, ensuring robust protection for IoT deployments.
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Ultra-Low Power Efficiency: XIAO nRF54L15 is optimized for long-life battery-powered applications, leveraging the Nordic nRF54L15 SoC's industry-leading efficiency (0.6uA in the chip's System OFF mode) and an integrated battery charging circuit. Final board-level power consumption data is currently being verified for accuracy and will be announced soon.
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Streamlined Development Experience: Full support for Nordic nRF Connect SDK and PlatformIO (Zephyr) enables efficient embedded development workflows. (Note: Arduino IDE is not currently supported).
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Production-Ready Design with PCBA Support: XIAO nRF54L15 features a production-optimized SMD (Surface Mount Device) design with standardized stamp holes, making it perfect for commercial PCBA (Printed Circuit Board Assembly) integration.
Note:
XIAO SoM User Manual open-sources all hardware and software materials of XIAO, providing professional product design guidelines to help you accelerate ideas off the ground, streamline product design, providing a seamless experience from module selection to mass production. You can check here more info.
HARDWARE OVERVIEW



APPLICATIONS
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Next-Gen Wearables
Create compact health trackers with long battery life or develop secure wearable payment solutions utilizing its integrated NFC and advanced security features.
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Secure Smart Home Hubs
Build a secure and reliable Matter-Thread border router or a multi-protocol bridge that unifies various smart home devices under one trustworthy network.
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Industrial IoT (IIoT) Sensors
Develop intelligent industrial sensors that perform on-device TinyML for predictive maintenance, while ensuring data integrity and device security with its hardware-level protection.
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Advanced Prototyping
Function as a versatile developer tool for debugging multi-protocol networks or rapidly creating proof-of-concept designs for secure, low-power wireless products.
TECHNICAL DETAILS
- Chipset: nRF54L15 ultra-low-power wireless SoC
- Processor: Arm® Cortex®-M33 128 MHz, RISC-V 128 MHz Coprocessor
- RAM: 256KB
- Flash: 1.5 MB Non-volatile Memory (NVM)
- Interface: 14x GPIO (PWM) Pin, 14x Digital Pin, 6x Analog Pin, 1x I2C, 1x UART, 2x SPI, 1x NFC
- Onboard: 1x User LED (1 Color), 1x Charge LED (Battery Charging Indicator), 1x Reset Button, 1x User Button, 1x Onboard Ceramic Antenna, 1x IPEX4 Connector (for external antenna), 1x 6-Axis IMU, 1x PDM Microphone
- Wireless Connectivity: Bluetooth LE 6.0 (include Channel Sounding), Bluetooth Mesh, NFC, Thread, Zigbee, Matter, Amazon Sidewalk, Proprietary 2.4 GHz protocols
- Power Input: Type-C: 5V, Battery: 3.7V
- Software: Nordic nRF Connect SDK
- Compatibility: PlatformIO, Zephyr RTOS
- Working Temperature: -20°C to 70°C
- Dimensions: 21 x 17.8mm
DOCUMENTS
SHIPPING LIST
- 1x XIAO nRF54L15
- 2x 7 Pin Header