Feature

• High Performance:Powered bySAMD21G18chip, operating up to 48MHz, equipped with 32KB of SRAM, and 256KB of onboard flash memory
• Ultra-small Design:21 x 17.5mm, Seeed Studio XIAO series classic form factor, suitable for wearable devices
• Multiple Development Interfaces:11x analog / 11x digital Pins, 1x I2C interface, 1x UART port, and 1 SPI port
• Multiple Develop Platform:Support Arduino / Micropython / CircuitPython development, friendly for beginners, satisfied for electronics enthusiasts
• Perfect for Production:Breadboard-friendly & SMD design, no components on the back

Note

XIAO SoM User Manual open-sources all hardware and software materials of XIAO, providing professional product design guidelines to help you accelerate ideas off the ground, streamline product design, providing a seamless experience from module selection to mass production.

Specification

Hardware Overview

Attention

All the I/O pins are 3.3V, please do not input more than 3.3V, otherwise, the CPU may be damaged.

PinOut

Application

• Wearable devices
• Rapid prototyping (directly attached to the expanded PCB as a minimal system)
• Perfect for all the projects that need a mini Arduino
• DIY keyboard
• USB development (USB to multi-channel TTL/USB host mode, etc.)
• In a scenario where you need to read multiple mock values The DAC output

Documents

ATSAMD218A-MU datasheetHow to use Seeeduino XIAO to log in to your Raspberry PiSeeed Studio XIAOcourseXIAO Reference Design3D Printing “Case” Studies

Part List