---
product_id: 203224713
title: "XIAO SAMD21 - Smallest Arduino Microcontroller with Rich Interfaces for Wearable Devices, 100% Arduino IDE Compatible, 3pcs"
brand: "seeed studio"
price: "639 DH"
currency: MAD
in_stock: true
url: https://www.desertcart.ma/products/203224713-xiao-samd21-smallest-arduino-microcontroller-with-rich-interfaces-for-wearable
store_origin: MA
region: Morocco
---

# 48MHz ARM Cortex-M0+ CPU Compact 20x17.5mm footprint 14 GPIO pins with multi-protocol support XIAO SAMD21 - Smallest Arduino Microcontroller with Rich Interfaces for Wearable Devices, 100% Arduino IDE Compatible, 3pcs

**Brand:** seeed studio
**Price:** 639 DH
**Availability:** ✅ In Stock

## Summary

> 🚀 Tiny Tech, Massive Potential: Power Your Wearables & DIY Dreams

## Quick Answers

- **What is this?** XIAO SAMD21 - Smallest Arduino Microcontroller with Rich Interfaces for Wearable Devices, 100% Arduino IDE Compatible, 3pcs by seeed studio
- **How much does it cost?** 639 DH with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ma](https://www.desertcart.ma/products/203224713-xiao-samd21-smallest-arduino-microcontroller-with-rich-interfaces-for-wearable)

## Best For

- seeed studio enthusiasts

## Why This Product

- Trusted seeed studio brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Blazing Fast Microcontroller:** 3x speed of Arduino Uno/Nano with 48MHz ARM Cortex-M0+ CPU
- • **Triple Pack for Triple Innovation:** Get 3 units to fuel multiple projects or collaborative builds—don’t get left behind
- • **Wearable-Ready & Energy Efficient:** Tiny footprint with low power consumption perfect for next-gen wearable tech
- • **Seamless Arduino IDE Compatibility:** Plug & play with Arduino IDE for rapid prototyping and effortless coding
- • **Interface Powerhouse in Thumb-Sized Form:** 14 GPIO pins supporting analog, digital, I2C, UART & SPI in ultra-compact design

## Overview

The Seeed Studio XIAO SAMD21 is the smallest Arduino-compatible microcontroller board featuring a 48MHz ARM Cortex-M0+ CPU, 256KB flash, and 32KB SRAM. Despite its thumb-sized 20x17.5mm form factor, it offers 14 versatile GPIO pins with analog, digital, I2C, UART, and SPI interfaces. Fully compatible with Arduino IDE, it’s ideal for wearable devices, rapid prototyping, and compact DIY electronics projects. This 3-pack bundle ensures you’re equipped to innovate without limits.

## Description

Full description not available

## Features

- 🌱【Powerful CPU】 The Seeeduino XIAO is equipped with an ARM Cortex-M0+ 32bit 48MHz microcontroller, which is three times faster than Arduino Uno and Arduino Nano. Furthermore, this Arduino IDE compatible board XIAO has 256KB flash memory and 32KB SRAM.
- 🌱【Rich Interfaces in a Tiny Size】 The device has 14 GPIO pins, each of which has 11 analog channels, 11 digital channels, I2C*1, UART*1, and SPI*1, USB Type-C interface*1 in a tiny space, just 20mm*17.5mm (about the size of your thumb). Seeeduino XIAO is the smallest Arduino compatible board in the Seeeduino series.
- 🌱【Fully compatible with Arduino IDE】 Seeeduino XIAO development board is perfectly compatible with Arduino IDE and you can easily create small projects using the extensive and comprehensive Arduino library. It has a 2.54mm pin pitch and can be used even when inserted into a breadboard because it is an Arduino microcontroller.It has a 2.54mm pin pitch and can be used even when inserted into a breadboard because it is an Arduino microcontroller.
- 🌱【Applications】 Seeeduino XIAO is suitable for Wearable devices, Rapid prototyping, DIY keyboard, USB to multi-channel TTL/USB host mode, etc.
- 🌱【Perfect for Wearable and Tiny Arduino Projects】 This microcontroller has good performance in processing but needs less power. As a matter of fact, it is designed in a tiny size and can be used for Arduino wearable devices and small projects.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Processor | 48 MHz none |
| RAM | SRAM |
| Wireless Type | 802.11b |
| Brand | seeed studio |
| Series | Seeeduino XIAO |
| Item model number | 110010004 |
| Operating System | Windows, macOS, Linux |
| Item Weight | 0.317 ounces |
| Package Dimensions | 3.58 x 2.24 x 0.51 inches |
| Color | 3PCS |
| Processor Brand | ARM |
| Number of Processors | 1 |
| Manufacturer | seeed studio |
| ASIN | B08745JBRP |
| Date First Available | April 15, 2020 |

## Product Details

- **Brand:** seeed studio
- **Model Name:** Seeeduino XIAO
- **Ram Memory Installed Size:** 32 KB
- **Memory Storage Capacity:** 256 KB
- **CPU Model:** None

## Images

![XIAO SAMD21 - Smallest Arduino Microcontroller with Rich Interfaces for Wearable Devices, 100% Arduino IDE Compatible, 3pcs - Image 1](https://m.media-amazon.com/images/I/41ednqv7gXL.jpg)
![XIAO SAMD21 - Smallest Arduino Microcontroller with Rich Interfaces for Wearable Devices, 100% Arduino IDE Compatible, 3pcs - Image 2](https://m.media-amazon.com/images/I/41uR9RpuN1L.jpg)
![XIAO SAMD21 - Smallest Arduino Microcontroller with Rich Interfaces for Wearable Devices, 100% Arduino IDE Compatible, 3pcs - Image 3](https://m.media-amazon.com/images/I/41BfmdCDLSL.jpg)
![XIAO SAMD21 - Smallest Arduino Microcontroller with Rich Interfaces for Wearable Devices, 100% Arduino IDE Compatible, 3pcs - Image 4](https://m.media-amazon.com/images/I/3104sqK5TPL.jpg)
![XIAO SAMD21 - Smallest Arduino Microcontroller with Rich Interfaces for Wearable Devices, 100% Arduino IDE Compatible, 3pcs - Image 5](https://m.media-amazon.com/images/I/41YwHwJsKmL.jpg)

## Available Options

This product comes in different **Size** options.

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**Shop now:** [https://www.desertcart.ma/products/203224713-xiao-samd21-smallest-arduino-microcontroller-with-rich-interfaces-for-wearable](https://www.desertcart.ma/products/203224713-xiao-samd21-smallest-arduino-microcontroller-with-rich-interfaces-for-wearable)

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*Product available on Desertcart Morocco*
*Store origin: MA*
*Last updated: 2026-01-24*