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.