Description

Take a look at Seeeduino XIAO. What a small size and cute looking! It is the smallest

member of the Seeeduino family. Seeeduino XIAO still carries the powerful CPU-ARM®

Cortex®-M0+(SAMD21G18) which is a low-power Arduino microcontroller. On the other

hand, this little board has good performance in processing but needs less power. As a

matter of fact, it is designed in a tiny size and can be used for Arduino wearable devices and

small projects.

Apart from the strong CPU, Seeeduino XIAO is excellent in many other functions. It has 14

GPIO PINs, which can be used for 11 analog PINs, 11 digital PINs, 1 I2C interface, 1 UART

interface, and 1 SPI interface. Some PINs have various functions, A1/D1 to A10/D10 Pins

have PWM functions and Pin A0/D0 has a function of DAC which means you can get

true analog signals not PWM signals when you define it as an analog pin, that’s why 14

GPIO PINs can realize more I/O PINs and interfaces. Moreover, Seeeduino XIAO supports

the USB Type-C interface which can supply power and download code. There are power

pads at the back of the XIAO which support battery and make it designed for wearable

devices to become realistic. 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 chip’s inner

crystal oscillator for time fixing, in order to make the clock more accurate, Seeeduino XIAO

layouts an extra 32.768KHz to make the clock more stable.

Seeeduino XIAO is perfectly compatible with Arduino IDE, you can easily develop some

small projects with the help of the large and comprehensive Arduino library. So get one and

you will soon love it!

Attention

All the I/O pins are 3.3V, please do not input more than 3.3V, otherwise, the CPU may be damaged.

This is the Wiki of the Seeeduino XIAO, you can view the basic settings of running the

board.

Specification



CPU: ARM Cortex-M0+ CPU(SAMD21G18) running at up to 48MHz

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Storage: 256KB Flash,32KB SRAM

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I/O PINs: 14 GPIO PINs,11 analog PINs, 11 digital PINs, 1 DAC output Pin

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Interface: 1 I2C interface,1 UART interface, 1 SPI interface



Power supply and downloading interface: USB Type-C interface

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LEDs: 1 user LED, 1 power LED, two LEDs for serial port downloading



Reset button: two reset button short connect to reset



Power Pads: For the battery power supply



Software compatibility: Compatible with Arduino IDE



Projection cover for protecting the circuit



Dimensions: 23.5x17.5x3.5 mm