Seeeduino XIAO - Arduino Microcontroller - SAMD21 Cortex M0+ Pre-soldered
  • Seeeduino XIAO - Arduino Microcontroller - SAMD21 Cortex M0+ Pre-soldered
  • Seeeduino XIAO - Arduino Microcontroller - SAMD21 Cortex M0+ Pre-soldered
  • Seeeduino XIAO - Arduino Microcontroller - SAMD21 Cortex M0+ Pre-soldered
  • Seeeduino XIAO - Arduino Microcontroller - SAMD21 Cortex M0+ Pre-soldered
  • Seeeduino XIAO - Arduino Microcontroller - SAMD21 Cortex M0+ Pre-soldered
  • Seeeduino XIAO - Arduino Microcontroller - SAMD21 Cortex M0+ Pre-soldered
  • Seeeduino XIAO - Arduino Microcontroller - SAMD21 Cortex M0+ Pre-soldered

Seeeduino XIAO - Arduino Microcontroller - SAMD21 Cortex M0+ Pre-soldered

SS023

This Seeeduino XIAO is the smallest Arduino compatible plate of the Seeeduino family. It is an Arduino microcontroller, integrated with the SAMD21 microchip. Despite its tiny size, it has enough interfaces for many applications.

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Key features

  • Powerful CPU: ARM® Cortex®-M0 + 32bit 48MHz microcontroller (SAMD21G18) with 256KB Flash, 32KB SRAM
  • Small size: as small as a thumb (20 x 17.5 mm), ideal for portable devices and very small projects.
  • Easy to work with: compatible with the breadboard
  • Flexible support: Arduino IDE compatible
  • Multiple development interfaces: 11 digital/analogue pins, 10 PWM pins, 1 DAC output, 1 SWD pad interface, 1 I2C interface, 1 UART interface, 1 SPI interface

Description

This tiny plate with its neat appearance is the ideal plate for your projects that require a small size. Despite its tiny size, it has a powerful CPU-ARM® Cortex®-M0+ (SAMD21G18) which is an Arduino low power microcontroller. On the other hand, this small board has a good processing performance but needs less energy than other boards. 

The Seeeduino XIAO board also uses USB type C which can supply power and also download code. It has power pads on the back of the XIAO that support the battery, making projects for portable devices take real shape. In addition to the power LED, it has a user LED for a better coding experience. The chip's internal crystal oscillator will usually be used to set the time, to make the clock more accurate.

In addition, Seeeduino XIAO is also excellent at many other functions. It has 14 GPIO pins, of which 11 analogue pins, 11 digital pins, 1 I2C interface, 1 UART interface and 1 SPI interface can be used. However, some pins have several functions, pins A1/D1 to A10/D10 have PWM functions and pin A0/D0 has a DAC function, which means that you can get true analogue signals, not PWM signals, when you define it as an analogue pin.

Seeeduino XIAO is perfectly compatible with Arduino IDE, which you can easily develop many small projects with the help of the large and complete Arduino library. 

Caution:

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

This is the Seeeduino XIAO Wiki, where you can see the basic operating configuration of the board.

Specifications

  • CPU: ARM Cortex-M0 + CPU (SAMD21G18) operating at up to 48MHz
  • Storage: 256 KB Flash, 32 KB SRAM
  • I/O PINs: 14 GPIO PINs, 11 analogue PINs, 11 digital PINs, 1 DAC output pin
  • Software compatibility: Arduino IDE compatible
  • Interface: 1 I2C interface, 1 UART interface, 1 SPI interface
  • Reset button: two reset buttons are connected to reset
  • Power supply and download interface: USB interface type C
  • LEDs: 1 user LED, 1 power LED, two LEDs for serial port discharge
  • Power Pads: for the battery power supply
  • Projection cover to protect the circuit.
  • Dimensions: 20x17,5x3,5 mm

Applications

  • Portable devices
  • Rapid prototyping (connected directly to the expanded PCB as a minimum system)
  • DIY keyboard
  • USB development (USB to TTL host mode / multi-channel USB, etc.)
  • A scenario where you need to read several simulated values The DAC output
  • Perfect for all projects that need mini Arduino

Demos

Community Projects

Below, we show some community projects and you can find them updated in the collection of community projects of the Seeeduino XIAO blog. What will be the next idea for a Seeeduino XIAO project?

USB HID Macropad built with Seeeduino Xiao & CircuitPython via Andy Warburton

Hardware Pinout

Seeeduino-XIAO-pinout.jpg

Seeeduino-XIAO-pinout-back.png

Part List

  • 1 x Seeeduino XIAO - Arduino Microcontroller - SAMD21 Cortex M0+ 
  • 2 x 7pins header
  • 4 x pasters

Documents

Hardware schematic

ATSAMD218A-MU datasheet

How to use Seeeduino XIAO to log in to your Raspberry Pi

Seeeduino XIAO HDK

2021-03-30

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