Seeed XIAO nRF54L15

The XIAO nRF54L15 is a compact development board based on Nordic’s nRF54L15 SoC with a 128 MHz Arm Cortex-M33 core and 1.5 MB NVM. It supports BLE 6.0, Matter, Thread, and Zigbee, includes 16 GPIOs, USB-C, onboard charging, and low-power operation for secure IoT applications.

---

The Seeed 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, a 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.

Features

• 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 a 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 a 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.
• Ultra-Low Power Efficiency
  • XIAO nRF54L15 is optimised 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.
• 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)
• Production-Ready Design with PCBA Support
  • XIAO nRF54L15 features a production-optimised SMD (Surface Mount Device) design with standardised stamp holes, making it perfect for commercial PCBA (Printed Circuit Board Assembly) integration.

Specifications

Chipset	nRF54L15 ultra-low-power wireless SoC – nordicsemi.com
Processor	Arm® Cortex®-M33 128 MHz RISC-V 128 MHz Coprocessor
RAM	256KB
Flash	1.5 MB Non-volatile Memory (NVM)
Interface	16× GPIO (PWM) pin 16× Digital pin 6× Analog pin 2× I2C 1× UART 2× SPI 1× NFC
Onboard	1× User LED (1 colour) 1× Charge LED (battery charging indicator) 1× Reset button 1× Bluetooth antenna 1× User button 1× Onboard ceramic antenna 1× IPEX4 connector (for external antenna)
Wireless connectivity	Bluetooth LE 6.0 (includes channel sounding) Bluetooth Mesh NFC Thread Zigbee Matter Amazon Sidewalk Proprietary 2.4 GHz protocols
Power input	Type-C: 5V Battery: 3.7V
Low power mode	The test results will be finalised soon. Please stay tuned.
Software compatibility	Nordic nRF Connect SDK Arduino IDE PlatformIO Zephyr RTOS
Working temperature	-40°C to 105°C
Dimensions	21 × 17.8 mm
Product number	101991421

Board features

Resources

• Schematic
• KiCAD Libraries
• Pinout
• Dimensions in DXF
• 3D CAD file
• Electronics simulator
• Fritzing file
• Flux.ai file
• Antmicro Designer

Pinout

Package Contents

• 1x Seeed Studio XIAO nRF54L15
• 2x 7-Pin Headers (2.54mm)