High-performance MCU: Nordic Semiconductor's nRF52840 chip with 64 MHz FPU, multiple development ports, compatible with CircuitPython and MicroPython Advanced wireless connectivity: Bluetooth 5.0 with built-in antenna and NFC support Efficient power management: Integrated Li-ion battery charging, 5 μA deep sleep power consumption Expanded 20 GPIOs: 9 additional 1.27 mm pitch SMD castellated pins beyond the standard XIAO nRF52840 Supports native TensorFlow Lite, making it suitable for embedded machine learning and AIoT applications Processor: Nordic nRF52840, ARM 32-bit processor with FPU, 64 MHz Wireless connection: Bluetooth 5.0 / BLE / NFC Memory: 256 KB RAM, 1 MB Flash, 2 MB onboard Flash Onboard button: reset button Onboard LED: status LED / charging LED Battery charging chip: BQ25101 Programming language support: CircuitPython, MicroPython Color: As shown Material: PCB Package Contents: 1 × XIAO nRF52840 Plus