• Seeed_Studio_Seeeduino_XIAO_SAMD21_e930b5fb-2d3f-4cea-ba3d-13f079d69c24 - Roboracter
  • 1_Seeed_Studio_Seeeduino_XIAO_5d29ec7b-23f1-458a-9252-133ac351e0dc - Roboracter
  • 2_Seeed_Studio_Seeeduino_XIAO_SAMD21_677ceac6-002a-420e-ad7c-d6e7c6a08315 - Roboracter
  • 4_Seeed_Studio_Seeeduino_XIAO_SAMD21_A_384cb343-60f1-435f-ab4d-f04322b99a7c - Roboracter
  • 3_Seeed_Studio_Seeeduino_XIAO_SAMD21_00d9f2ae-98b7-4220-9549-2a5337f435a3 - Roboracter
1 5

Seed Studio Seeeduino XIAO SAMD21 Arduino Compatible Board

SKU: UB5RHIWK5Y
The Seeeduino XIAO SAMD21 is a compact yet powerful Arduino-compatible board built on the Microchip SAMD21G18 MCU. As the flagship of the Seeeduino XIAO series, this tiny board delivers professional-grade performance in a minimalist, SMD-designed form factor, making it perfect for space-constrained projects. It offers seamless compatibility with Arduino IDE, MicroPython, and PlatformIO, allowing flexible development for a wide range...
Rs. 699.00
Rs. 799.00 Rs. 699.00
Save Rs. 100
Sold out
Tax included. Shipping calculated at checkout.
Guaranteed safe & secure checkout

Shipping & Returns

Orders placed before 3 PM IST will be shipped on the same day (excluding Sundays and Public holidays) through our shipping partners. In rare cases, the pickup may get delayed during Public holidays / Bandh / Environmental disturbances.

Specifications

Specifications:

Product Name: Seeed Studio XIAO SAMD21
Chipset: Microchip SAMD21G18
Processor: ARM Cortex-M0+ (Up to 48 MHz)
RAM: 32KB SRAM
Flash Memory: 256KB Flash
GPIO Pins: 14
Digital I/O Pins: 11
Analog Inputs: 11
DAC: 1
Communication Interfaces: 1x I2C, 1x UART, 1x SPI
Onboard LEDs: 1 User LED, 1 Power LED, 2 TX/RX Serial Communication LEDs
Power Input: USB Type-C (5V), Battery (3.7V)
Maximum Output: 5V @ 500mA, 3.3V @ 200mA
Software Compatibility: Arduino, PlatformIO, MicroPython, CircuitPython, Zephyr
Operating Temperature: -40°C to 85°C
Dimensions: 21 × 17.8 mm

Additional Resources

XIAO SAMD21 Arduino Compatible Board.PDF

FAQ

1. What is the Seeeduino XIAO SAMD21?

The Seeeduino XIAO SAMD21 is an incredibly tiny but powerful Arduino compatible board. It's built around a capable ARM Cortex-M0+ microcontroller, giving it plenty of processing power for your projects. Its small size makes it the perfect brain for all kinds of DIY electronics, especially where space is tight.

2. Which programming environments are supported by the Seeeduino XIAO SAMD21?

You have a lot of flexibility when it comes to coding for this board. It is fully Arduino IDE, MicroPython & PlatformIO compatible, giving you multiple ways to bring your ideas to life. Whether you prefer coding in C++ with Arduino or using Python scripts, this board supports your favorite workflow.

3. What are the key features of the Seeeduino XIAO SAMD21?

Despite its tiny size, the Seeeduino XIAO SAMD21 is packed with features, including 14 GPIO pins for connecting your sensors and components. It has a generous 256KB Flash memory for storing your programs. It also includes a modern USB Type-C connector for power and programming.

4. Can I use the Seeeduino XIAO SAMD21 for wearable projects?

Yes, the Seeeduino XIAO SAMD21 is a perfect choice for wearable devices because of its incredibly small footprint and low power needs. Its full Arduino IDE, MicroPython & PlatformIO compatibility also gives you the flexibility to easily program it for whatever your wearable project requires. It can easily be hidden inside clothing or accessories.

5. How do I connect sensors or modules to the Arduino compatible board?

Connecting sensors to the Seeeduino XIAO SAMD21 is very straightforward, as you can use its various communication pins like GPIO, I2C, and UART. Because this Arduino compatible board has great software support, interfacing with components is simple. Its full Arduino IDE, MicroPython & PlatformIO compatibility means you'll find lots of sample code to get you started.

View full product details

The Seeeduino XIAO SAMD21 is a compact yet powerful Arduino-compatible board built on the Microchip SAMD21G18 MCU.

As the flagship of the Seeeduino XIAO series, this tiny board delivers professional-grade performance in a minimalist, SMD-designed form factor, making it perfect for space-constrained projects.

It offers seamless compatibility with Arduino IDE, MicroPython, and PlatformIO, allowing flexible development for a wide range of applications.

With extensive tutorials and learning resources, the Seeeduino XIAO SAMD21 is an excellent choice for beginners and hobbyists eager to explore open-source electronics.

Features:

  • Ultra-compact Seeeduino XIAO design
  • Powered by SAMD21G18 MCU
  • Arduino IDE, MicroPython & PlatformIO compatible
  • Thumb-sized SMD package for space-saving projects
  • Beginner-friendly with tutorials and learning resources

SAMD21 vs ESP32

Feature SAMD21 (Seeeduino XIAO) ESP32
Core ARM Cortex-M0+ Dual-core Tensilica LX6
Clock Speed 48 MHz Up to 240 MHz
Connectivity No WiFi/Bluetooth (needs external modules) WiFi + Bluetooth built-in
Power Consumption Very low-power Higher compared to SAMD21
Size Ultra-compact (XIAO form factor) Generally larger modules
Best Use Case Wearables, sensor nodes, compact projects IoT, wireless projects, high-performance tasks

Applications:

  • Learning and Education (Arduino, MicroPython, Basic electronics, and prototyping)
  • Wearable devices include health monitoring, interactive apparel, and tiny fitness trackers.
  • IoT and sensor projects include environmental monitoring, data collection devices, smart home sensors, and small automation systems.
  • Space-Constrained Mini Arduino Projects
  • Rapid prototyping (fast proof-of-concept constructions, hardware testing, product prototypes, embedded system development)
  • HID devices (do-it-yourself keyboard, USB to multi-channel TTL/USB host mode,

Seeeduino XIAO SAMD21 Pinout DiagramSeeeduino XIAO SAMD21 Pinout Diagram