Seeeduino XIAO SAMD21(Pre-Soldered)

Seeed Studio XIAO Series are diminutive development boards, sharing a similar hardware structure, where the size is literally thumb-sized. The code name "XIAO" here represents its half feature "Tiny", and the other half will be "Puissant". XIAO SAMD21 with a pre-soldered header, powered by a SAMD21G18 chip is an ultra-small, high-performance universal development board, the pioneering product of the XIAO series. It supports Arduino / Micropython / CircuitPython development, which is the perfect microcontroller for you to get started with electronics. Highlighted Features High Performance: Powered by SAMD21G18 chip, operating up to 48MHz, equipped with 32KB of SRAM, and 256KB of onboard flash memory Ultra-small Design: 21 x 17.5mm, Seeed Studio XIAO series classic form factor, suitable for wearable devices Multiple Development Interfaces: 11x analog / 11x digital Pins, 1x I2C interface, 1x UART port, and 1 SPI port Multiple Develop Platform: Support Arduino / Micropython / CircuitPython development, friendly for beginners, satisfied for electronics enthusiasts Perfect for Production: Breadboard-friendly & SMD design, no components on the back Applications Wearable devices Rapid prototyping (directly attached to the expanded PCB as a minimal system) Perfect for all the projects that need a mini Arduino DIY keyboard USB development (USB to multi-channel TTL/USB host mode, etc.) In a scenario where you need to read multiple mock values The DAC output Specifications Parameter Description CPU ARM Cortex-M0+ CPU(SAMD21G18) running at up to 48MHz Storage 256KB Flash,32KB SRAM I/O PINs 14 GPIO PINs,11 analog PINs, 11 digital PINs, 1 DAC output Pin Interface 1 I2C interface,1 UART interface, 1 SPI interface, USB Type-C interface LEDs 1 user LED, 1 power LED, and two LEDs for serial port downloading Reset button two reset buttons short-connect to reset Software compatibility Arduino IDE Dimensions 21x17.5 mm   Hardware Overview Figure: Device Schematics