High-performance MCU: Nordic Semiconductor's nRF52840 chip with 64 MHz FPU, multiple development ports, for Arduino/CircuitPython/MicroPython compatibleAdvanced wireless connectivity: Bluetooth 5.0 with built-in antenna and NFC supportOnboard sensing: Integrated 6-axis IMU and PDM microphone, supporting motion sensing and audio input, ideal for wearable devices and compact ML applicationsExpanded 20 GPIOs: 9 additional 1.27mm pitch SMD castle pins beyond the standard XIAO nRF52840With native TensorFlow Lite, it is the ideal development platform for your advanced embedded machine learning and AIoT projectsProcessor: Nordic nRF52840, ARM Cortex-M4 32-bit processor with FPU, 64 MHzWireless connection: Bluetooth 5.0/BLE/NFCMemory: 256KB RAM, 1MB Flash 2MB onboard FlashOnboard button: reset buttonOnboard LED: 3-in-1 LED/charging LEDBattery charging chip: BQ25101Programming language: for Arduino/MicroPython/ CircuitPythonThe product appearance and printed words may vary depending on the batch, but this does not affect use.Colour:As ShownMaterial:PCBPackage Contents:1 * XIAO nRF52840 Sense PlusOnly 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.