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, ThreadandZigbeeprotocols. With ultra-low power consumption, it's ideal for battery-powered IoT devices. The tinyboard 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 NordicnRF Connect SDK and PlatformIO with Zephyr RTOS support for efficient development workflows. It also features 4 Mbps mode for proprietary 2.4 GHz protocols. Andit'scompatible with major ecosystems like for Amazon Sidewalk, for Apple Find My, and for 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 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. 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). Color: Black Material: PCB Package Contents: 1 x XIAO nRF54L15 development board Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.