SeeedSeeed Studio XIAO SAMD21
Overview
The Seeed Studio XIAO SAMD21 is an ultra-small development board powered by the Microchip ATSAMD21G18 ARM Cortex-M0+ microcontroller running at 48MHz. Despite its thumb-sized footprint of 23.5mm x 17.5mm, it provides 256KB of Flash and 32KB of SRAM with a modern USB Type-C interface. It is designed as a breadboard-friendly module that can also be surface-mounted onto a carrier PCB using its castellated holes.
Why Choose This Part
It features a high-density design with 14 GPIO pins supporting 11 ADC channels and 10 PWM outputs in a tiny form factor. The board includes integrated status LEDs for power and serial communication, an external 32.768KHz crystal for timing accuracy, and supports battery power via dedicated pads.
Applications
Key Specifications
Getting Started
The board is fully compatible with the Arduino IDE and MicroPython; users simply need to install the Seeed SAMD board package via the Boards Manager. Connect via USB Type-C for programming and power, and utilize the SWD pads on the bottom for professional debugging with an external probe.
Also Consider
Arduino
- Offers a similar SAMD21 core but adds onboard Wi-Fi and Bluetooth connectivity for IoT applications.
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