{"product_id":"seeed-studio-xiao-samd21-cortex-m0-seeeduino-xiao-soldered","title":"Seeed Studio XIAO SAMD21 Cortex M0+ (Seeeduino XIAO) - Soldered","description":"\u003cp\u003eThe original XIAO. Launched in 2019, the \u003cstrong\u003eSeeed Studio XIAO SAMD21\u003c\/strong\u003e (also known as the Seeeduino XIAO) is the board that started the XIAO family and set the standard for what a thumb-sized dev board could do. At just \u003cstrong\u003e21 x 17.8mm\u003c\/strong\u003e, it packs a full \u003cstrong\u003eARM Cortex-M0+ processor\u003c\/strong\u003e, native USB, and an 11-pin analog\/digital I\/O footprint into a form factor small enough to disappear inside a wearable, keychain, or tight enclosure.\u003c\/p\u003e\n\u003cp\u003eThis is the \u003cstrong\u003epre-soldered version\u003c\/strong\u003e - headers are already fitted, so you can plug it straight into a breadboard or Grove module and start building the moment it arrives. Prefer to solder your own headers or need a bare board for a custom mount? Grab the \u003ca href=\"https:\/\/zaitronics.com.au\/products\/seeed-studio-xiao-samd21-cortex-m0-seeeduino-xiao\"\u003eunsoldered version\u003c\/a\u003e instead.\u003c\/p\u003e\n\u003ch2\u003eWhy Choose the XIAO SAMD21?\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBeginner-friendly, no shortcuts on capability\u003c\/strong\u003e - native Arduino IDE support means you're writing real code and running real projects from your first upload, backed by free courses, tutorials, and a large community of reference projects.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTiny footprint, full feature set\u003c\/strong\u003e - 14 GPIO pins, 11 analog pins, DAC, I2C, UART, and SPI, all packed onto a board smaller than a 20-cent coin.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMassive expansion ecosystem\u003c\/strong\u003e - drop straight into the XIAO Expansion Board, Grove system (400+ compatible modules), CAN-Bus and LoRa modules, LED matrices, ePaper and round displays, mmWave sensors, GPS modules, mic arrays, and more - no soldering or prior electronics experience required to start prototyping.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-platform software support\u003c\/strong\u003e - Arduino, PlatformIO, MicroPython, CircuitPython, and Zephyr are all supported, so the board grows with you as your skills do.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt to last\u003c\/strong\u003e - rated for a -40°C to 85°C working range, making it just as suited to outdoor or enclosure-mounted projects as desktop prototyping.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eIdeal For\u003c\/h2\u003e\n\u003cp\u003eWearables, compact IoT sensors, USB HID devices, battery-powered projects, and anyone who wants the full Arduino experience without the footprint of a full-size Uno or Nano - without needing to break out the soldering iron first.\u003c\/p\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eChipset\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMicrochip SAMD21G18\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProcessor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eARM Cortex-M0+ @ up to 48 MHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRAM\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e32KB SRAM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFlash\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e256KB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eGPIO\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e14 pins (11 digital, 11 analog)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOther Interfaces\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1x DAC, 1x I2C, 1x UART, 1x SPI\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOnboard\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUser LED, Power LED, TX\/RX status LEDs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower Input\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5V via USB Type-C or BAT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax Output\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5V @ 500mA, 3.3V @ 200mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSoftware\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eArduino, PlatformIO, MicroPython, CircuitPython, Zephyr, and more\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWorking Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-40°C to 85°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e21 x 17.8mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003ePinout\u003c\/h2\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0870\/0021\/9940\/files\/sam21_pinout_1024x1024.webp?v=1785917860\" alt=\"Seeed Studio XIAO SAMD21 Pinout\" style=\"margin-bottom: 16px; float: none;\"\u003e\u003c\/div\u003e\n\u003ch2\u003eLearn More\u003c\/h2\u003e\n\u003cp\u003eFull setup guides, pinout diagrams, and project examples are available on the \u003ca href=\"https:\/\/wiki.seeedstudio.com\/Seeeduino-XIAO\/#resourses\"\u003eSeeed Studio Wiki\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eLooking to expand your build? Check out our full range of \u003ca href=\"https:\/\/zaitronics.com.au\/collections\/seeed-studio-xiao-expansion-breakout-boards\"\u003eXIAO Expansion \u0026amp; Breakout Boards\u003c\/a\u003e.\u003c\/p\u003e","brand":"Seeed Studio","offers":[{"title":"Default Title","offer_id":55984057385252,"sku":"SS102010388","price":13.8,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0870\/0021\/9940\/files\/2-102010388-seeed-studio-xiao-samd21-_pre-soldered_-45font.jpg?v=1785918070","url":"https:\/\/zaitronics.com.au\/products\/seeed-studio-xiao-samd21-cortex-m0-seeeduino-xiao-soldered","provider":"Zaitronics","version":"1.0","type":"link"}