Seeed Studio XIAO SAMD21 Arduino Microcontroller

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Feature

  • High Performance: Powered by SAMD21G18 chip, 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


Parameter

Description

CPU

ARM Cortex-M0+ CPU(SAMD21G18) running at up to 48MHz

Storage

256KB Flash,32KB SRAM

I/O PINs

14 GPIO PINs,11 analog PINs, 11 digital PINs, 1 DAC output Pin

Interface

1 I2C interface,1 UART interface, 1 SPI interface, USB Type-C interface

LEDs

1 user LED, 1 power LED, and two LEDs for serial port downloading

Reset button

two reset buttons short connect to reset

Software compatibility

Arduino IDE

Dimensions

21x17.8mm


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


HSCODE 8517180050
USHSCODE 8473305100
UPC 841454122890
EUHSCODE 8543709099
COO CHINA


Part List

Seeed Studio XIAO SAMD21

X1

Pasters

X4

7 Pin Header

X2

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