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Unconditional Satisfaction GuaranteeNo Shipping Fees Above 302 Months to Decide. Returns Simplified.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 powered by 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.
Seeed Studio XIAO SAMD21 carries the powerful CPU-ARM Cortex-M0+(SAMD21G18) running at up to 48Hz. In addition to the powerful CPU, it has256KB Flash and 32KB SRAMon board and supports theUSB Type-Cinterface which can supply power and download code.
Seeed Studio XIAO SAMD21 has 14 PINs, which can be used for 11 digital interfaces, 11 mock interfaces, 10 PWM interfaces (d1-d10), 1 DAC output pin D0, 1 SWD pad interface, 1 I2C interface, 1 SPI interface, 1 UART interface, Serial communication indicator (T/R), Blink light (L) through pin multiplexing. The colors of LEDs(Power,L,RX,TX) are green, yellow, blue and blue. Moreover, Seeed Studio XIAO SAMD21 has a Type-C interface which can supply power and download code. There are two reset button, you can short connect them to reset the board.
Except for the power LED, we add a user LED on board for your better coding experience. Usually, a dev board as small as this size will use the chips inner crystal oscillator for time fixing, in order to make the clock more accurate, Seeed Studio XIAO SAMD21 layouts an extra 32.768KHz to make the clock more stable.
Moreover, Seeed Studio XIAO SAMD21 is friendly to the communities for its strong software compatibilities, which supports Arduino, Micropython, and CircuitPython. Except for the software, flexible I/O allows it to speak to almost any external device.
XIAO SoM User Manualopen-sources all hardware and software materials of XIAO, providing professional product design guidelines to help you accelerate ideas off the ground, streamline product design, providing a seamless experience from module selection to mass production. You can checkhereto see more info.
| 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 | 21×17.5 mm |
| Seeed Studio XIAO SAMD21 | 1 |
| Pasters | 4 |
