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Seeed Studio XIAO SAMD21
$12.70
Overview
The Seeed Studio XIAO SAMD21 (aka Seeeduino XIAO) is your ideal gateway to electronics and programming, featuring native Arduino IDE compatibility and a complete beginner-friendly ecosystem. With a compact 21 x 17.8mm design, it is the smallest member of the XIAO family and perfect for space-constrained projects, wearables, and IoT prototypes.
Packed with a powerful ARM Cortex-M0+ processor and a rich set of interfaces, it bridges the gap between rapid prototyping and production-ready integration.
Key Features
- Ultra-Small Form Factor: Classic 21 x 17.8mm miniature design suitable for wearable devices and tiny embedded systems.
- High Performance: Powered by the Microchip SAMD21G18 ARM Cortex-M0+ processor running at up to 48 MHz.
- Rich Interfaces: 14 GPIO pins (11 digital, 11 analog), 1 DAC, 1 I2C, 1 UART, and 1 SPI.
- Extensive Software Support: Fully compatible with Arduino IDE, PlatformIO, MicroPython, CircuitPython, and Zephyr.
- Onboard Indicators: User LED, power LED, and dual status LEDs for serial communication (TX/RX).
- Production-Ready: SMD design with standardized stamp holes for commercial PCBA integration.
Technical Specifications
| Specification | Details |
|---|---|
| Product Name | Seeed Studio XIAO SAMD21 |
| Chipset | Microchip SAMD21G18 |
| Processor | ARM Cortex-M0+ up to 48 MHz |
| Memory | 32KB SRAM, 256KB Flash |
| Input Voltage | 5V (Type-C / BAT) |
| Max Output Current | 5V @ 500mA | 3.3V @ 200mA |
| Working Temperature | -40°C to 85°C |
| Dimensions | 21 x 17.8 mm |
Typical Applications
- STEM Learning & Education (Arduino & MicroPython prototyping)
- Wearable tech and compact fitness trackers
- IoT environmental monitoring and smart home sensor nodes
- Miniature robotics and space-constrained DIY gadgets
- HID devices (custom keyboards and USB controllers)
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