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 for 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.

Specifications:

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

Power supply and downloading interface: USB Type-C interface

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 for Arduino IDE

Projection cover for protecting the circuit

Dimensions: 23.5x17.5x3.5 mm

Features:

Powerful CPU: ARM® Cortex®-M0+ 32bit 48MHz microcontroller(SAMD21G18) with 256KB Flash,32KB SRAM

Flexible compatibility: Compatible with for Arduino IDE

Easy project operation: Breadboard-friendly

Small size: As small as a thumb(20x17.5mm) for wearable devices and small projects.

Multiple development interfaces: 11 digital/analog pins, 10 PWM Pins, 1 DAC output, 1 SWD Bonding pad interface, 1 I2C interface, 1 UART interface, 1 SPI interface.

Package Include:

1× Seeeduino XIAO Microcontroller

2× 7 Pins Header

4× Pasters

Typical Application:

Wearable devices

Rapid prototyping (directly attached to the expanded PCB as a minimal system)

Perfect for all the projects need mini for Arduino

DIY keyboard

USB development (USB to multi-channel TTL/USB host mode, etc.)

A scenario where you need to read multiple mock values The DAC output