Product details
Seeed Studio Seeeduino XIAO SAMD21 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.
Related Products
• Arduino Sheilds
• Microcontrollers
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 Diagram
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.
Related Products
• Arduino Sheilds
• Microcontrollers
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 Diagram
