Seeed Studio XIAO SAMD21 Plus

XIAO SAMD21 Plus, powered by the Microchip ATSAMD21G18A ARM Cortex-M0+ processor, brings enhanced flexibility and expandability to the tiny and versatile XIAO SAMD21. While maintaining its low-power performance, Arduino compatibility, and compact footprint, the Plus variant features redesigned castellations and backside pad layout, offering 16 additional GPIOs, integrated Li-ion battery management, dedicated Reset and Boot buttons, and an onboard WS2812 RGB LED. It is ideal for advanced IoT projects, battery-powered wearables, embedded applications, and production-ready SoM designs.