Seeed Studio Seeeduino XIAO SAMD21 Arduino Compatible Board -XIAO Series -XIAO Boards -Robocraze
Seeed Studio Seeeduino XIAO SAMD21 Arduino Compatible Board -XIAO Series -XIAO Boards -Robocraze
Seeed Studio Seeeduino XIAO SAMD21 Arduino Compatible Board -XIAO Series -XIAO Boards -Robocraze
Seeed Studio Seeeduino XIAO SAMD21 Arduino Compatible Board -XIAO Series -XIAO Boards -Robocraze
Seeed Studio Seeeduino XIAO SAMD21 Arduino Compatible Board -XIAO Series -XIAO Boards -Robocraze
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Seeed Studio Seeeduino XIAO SAMD21 Arduino Compatible Board - Buy Online in India

Seeed Studio Seeeduino XIAO SAMD21 Arduino Compatible Board

Rs. 616
Rs. 849
Rs. 616
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SKU: TIFC00321
  • Mini Arduino-compatible board based on SAMD21 MCU
  • Part of the Seeeduino XIAO series with ultra-compact design
  • Professional-grade performance in a thumb-sized SMD package
  • Compatible with Arduino IDE, MicroPython, and PlatformIO
  • Ideal for beginners with extensive learning resources and tutorials
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Seeed Studio Seeeduino XIAO SAMD21 Arduino Compatible Board -XIAO Series -XIAO Boards -Robocraze
Seeed Studio Seeeduino XIAO SAMD21 Arduino Compatible Board
Rs. 849 Rs. 616

Seeed Studio Seeeduino XIAO SAMD21 Arduino Compatible Board

Rs. 849 Rs. 616

Seeed Studio Seeeduino XIAO SAMD21 Arduino Compatible Board

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

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 Diagram

Seeeduino XIAO SAMD21 Pinout Diagram

Package Includes:

  • 1 x Seeed Studio Seeeduino XIAO SAMD21 Arduino Compatible Board

Specifications:

Specification Details
Product Name Seeed Studio XIAO SAMD21
Chipset Microchip SAMD21G18
Processor ARM Cortex-M0+ running up to 48 MHz
RAM 32KB SRAM
Flash 256KB Flash
Interface GPIO x14, Digital x11, Analog x11, DAC x1, I2C x1, UART x1, SPI x1
Onboard LEDs User LED x1, Power LED x1, TX/RX Serial Communication LEDs x2
Power Input Type-C: 5V, Battery (BAT): 3.7V
Max Output 5V @ 500mA, 3.3V @ 200mA
Software Compatibility Arduino, PlatformIO, MicroPython, CircuitPython, Zephyr, and more
Working Temperature -40°C to 85°C
Dimensions 21 × 17.8 mm

1. How to get started with the Seeeduino XIAO SAMD21 Arduino compatible board?

Connect your Seeeduino XIAO SAMD21 to a computer using a USB-C cable to power and program the board. Install the necessary board definitions in the Arduino IDE, MicroPython & PlatformIO compatible environments to enable development. Select the correct port and board type before uploading your first sketch. This compact Arduino compatible board supports multiple firmware platforms for flexible prototyping.

2. How to program the SAMD21 microcontroller on the Seeeduino XIAO?

The SAMD21 microcontroller on the Seeeduino XIAO can be programmed using the Arduino IDE, MicroPython & PlatformIO compatible tools, giving you flexibility in coding style and project requirements. Ensure you’ve selected “Seeeduino XIAO” in the board manager and installed the required cores. This allows you to run lightweight embedded applications or real-time sensor processing efficiently. Double-press the reset button to enter bootloader mode if the board isn’t detected.

3. How to use the Seeeduino XIAO SAMD21 in small form factor projects?

Thanks to its small form factor microcontroller, the Seeeduino XIAO SAMD21 fits seamlessly into tight spaces like wearable devices or miniaturized robotics. Despite its size, it retains full processing capability and GPIO accessibility for complex tasks. You can power it via USB or external sources, making it ideal for portable DIY electronics builds. Solder headers or use flexible PCBs to integrate it cleanly into your design.

4. How to connect sensors and peripherals to the Arduino compatible board?

Use the accessible GPIO pins and serial interfaces (I2C, SPI, UART) on the Arduino compatible board to attach sensors, OLEDs, or actuators directly. The Seeeduino XIAO SAMD21 supports multiple peripherals through pin multiplexing and software libraries. Connect devices using jumper wires or solder them for permanent integration. Always match voltage levels—this board runs at 3.3V logic—to avoid damaging connected components.

5. How to troubleshoot programming issues with the Seeeduino XIAO SAMD21?

If your computer doesn’t recognize the board, ensure the SAMD21 microcontroller drivers are installed, especially on Windows systems. Verify that your Arduino IDE, MicroPython & PlatformIO compatible setup includes the Seeeduino board package from the Boards Manager. Try double-resetting the XIAO to enter bootloader mode (indicated by a flashing LED). Check USB cable integrity—some cables only charge and don’t support data transfer

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.

Warranty Coverage:

This product comes with a 1-year manufacturer warranty from the date of purchase, covering manufacturing defects only.

Warranty Void If:

The product shows signs of physical damage, mishandling, exposure to water/moisture, fire, natural calamities, unauthorized repairs, improper storage near heat or direct sunlight, or alteration in any way.

Shipping Policy

  • All orders confirmed before 3:00 PM IST are shipped the same day, barring rare pickup delays on holidays or disturbances.
  • Delivery time in Metro cities is 1–3 days; for other locations, it is 3–7 days. Delivery varies based on location and courier service.

Return & Refund Policy

  • Return window: 7 days from receipt unless stated otherwise.
  • No refunds or replacements after the return window.
  • Returns are accepted only for non-working or damaged products.
  • Initiate return requests via a Support ticket or contact us at +91-8123057137.
  • Refunds are processed within 3–4 working days after inspection and approval.

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