{"product_id":"seeed-studio-xiao-samd21-plus-ss100031394","title":"Seeed Studio XIAO SAMD21 Plus","description":"\u003cdiv class=\"tips\" style=\"display: table; table-layout: fixed; background-color: #d9f5f3; height: auto; width: 100%;\" data-page-id=\"L8M3dzcInowvyzxExx3cAB6Wnxc\"\u003e\r\n\u003cdiv class=\"left-icon\" style=\"display: table-cell; vertical-align: middle; background-color: #83dfd3; padding-top: 10px; box-sizing: border-box; height: auto; width: 38px; text-align: center;\"\u003e\u003cimg style=\"width: 26px; vertical-align: middle;\" src=\"https:\/\/s3-us-west-2.amazonaws.com\/static.seeed.cc\/seeed\/icon\/Tip.svg\" alt=\"attention icon\"\u003e\u003c\/div\u003e\r\n\u003cdiv class=\"right-desc\" style=\"display: table-cell; vertical-align: middle; padding-left: 15px; box-sizing: border-box; width: calc(95% - 38px);\"\u003e\r\n\u003cp style=\"font-weight: bold; margin-top: 10px;\"\u003eNote: \u003c\/p\u003e\r\n\u003cdiv data-page-id=\"L8M3dzcInowvyzxExx3cAB6Wnxc\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"\u003e\r\n\u003cdiv class=\" old-record-id-XnPXd0seAotdVWx1gTwcp2ysnJf\"\u003eThis product is the Seeed Studio XIAO SAMD21 Plus, the upgraded variant of XIAO SAMD21 with 16 additional SMD GPIOs and integrated Li-ion battery management. The board and two 7-pin headers are included. No battery, USB cable, or other accessories are included.\u003c\/div\u003e\r\n\u003c\/div\u003e\r\n\u003c\/div\u003e\r\n\u003c\/div\u003e\r\n\u003ch3 class=\"heading-4 ace-line old-record-id-EMdrdu7O8oZAzfxCIvRchJk1nqb\"\u003eOverview\u003c\/h3\u003e\r\n\u003cdiv class=\"ace-line ace-line old-record-id-IA50dKrYHoEmRUxplhCciZfxnsh\"\u003eFollowing the XIAO Plus design language established by XIAO nRF52840 Plus, XIAO nRF52840 Sense Plus, XIAO ESP32-S3 Plus, and XIAO RP2040 Plus, the new Seeed Studio XIAO SAMD21 Plus upgrades the flagship XIAO SAMD21 — the original thumb-sized Arduino board — with expanded GPIO resources, integrated Li-ion battery management, enhanced user interaction features, and a standardized backside layout.\u003c\/div\u003e\r\n\u003cdiv class=\"ace-line ace-line old-record-id-JATMdXFvPoMycZx7uCtcS2eBnKb\"\u003ePowered by Microchip's SAMD21G18A ARM Cortex-M0+ 32-bit processor, XIAO SAMD21 Plus brings enhanced flexibility and expandability to the tiny and versatile XIAO SAMD21. While maintaining all the powerful features including Arduino, MicroPython, and PlatformIO compatibility, the Plus variant features redesigned castellations and backside pad layout, offering \u003cstrong\u003e16 additional GPIOs\u003c\/strong\u003e, integrated Li-ion battery management, dedicated Reset and Boot buttons, and an onboard programmable WS2812 RGB LED. It is ideal for advanced IoT projects, battery-powered wearables, embedded applications, and production-ready SoM designs.\u003c\/div\u003e\r\n\u003cdiv class=\"ace-line ace-line old-record-id-JATMdXFvPoMycZx7uCtcS2eBnKb\"\u003e\u003cimg src=\"https:\/\/media-cdn.seeedstudio.com\/media\/wysiwyg\/111-photo\/download_image_1.png\" alt=\"\" width=\"1622\" height=\"1200\"\u003e\u003c\/div\u003e\r\n\u003cdiv class=\"ace-line ace-line old-record-id-JATMdXFvPoMycZx7uCtcS2eBnKb\"\u003e \u003c\/div\u003e\r\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/A_XUi8tlKWk?si=TQJfFnT52yW4w_oQ\" width=\"560\" height=\"315\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\r\n\u003cdiv data-page-id=\"L8M3dzcInowvyzxExx3cAB6Wnxc\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"\u003e\r\n\u003cdiv data-page-id=\"L8M3dzcInowvyzxExx3cAB6Wnxc\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"\u003e\r\n\u003cdiv class=\"ace-line ace-line old-record-id-NA47dQTAQonT4jxFItAcLyyhnnf\"\u003e\u003cstrong\u003eProduction-Ready Design with FREE PCBA Support\u003c\/strong\u003e\u003c\/div\u003e\r\n\u003cdiv class=\"ace-line ace-line old-record-id-YsybdF2UMobnucxlGjXcKk8Wncg\"\u003eAs an addition to the \u003ca href=\"https:\/\/www.seeedstudio.com\/xiao-series-page\" data-lark-is-custom=\"true\"\u003eSeeed Studio XIAO family\u003c\/a\u003e,the XIAO SAMD21 Plus remains the classic XIAO design (thumb-size, SMD, stamp holes). All these features make it a perfect fit for either space-limited applications, or a production-ready System on Module (SoM) for your PCBA designs. Through our Fusion PCBA Sponsorship program, you can not only enjoy the lowest unit prices for all XIAO modules from \u003ca href=\"https:\/\/www.seeedstudio.com\/fusion_pcb.html?utm_source=xiao\u0026amp;utm_medium=productpage\" data-lark-is-custom=\"true\"\u003eour Fusion\u003c\/a\u003e Open Parts Library, but also fabricate and scale your XIAO-based PCBA designs at low cost (30% off) with FREE Design for Manufacturing consulting services, streamlining your journey from prototype to production.\u003c\/div\u003e\r\n\u003cdiv class=\"ace-line ace-line old-record-id-XY1NdTzjJosRumxBgkvcUF1Xnth\"\u003e \u003c\/div\u003e\r\n\u003cdiv class=\"tips\" style=\"display: table; table-layout: fixed; background-color: #d9f5f3; height: auto; width: 100%;\"\u003e\r\n\u003cdiv class=\"left-icon\" style=\"display: table-cell; vertical-align: middle; background-color: #83dfd3; padding-top: 10px; box-sizing: border-box; height: auto; width: 38px; text-align: center;\"\u003e\u003cimg style=\"width: 26px; vertical-align: middle;\" src=\"https:\/\/s3-us-west-2.amazonaws.com\/static.seeed.cc\/seeed\/icon\/Tip.svg\" alt=\"attention icon\"\u003e\u003c\/div\u003e\r\n\u003cdiv class=\"right-desc\" style=\"display: table-cell; vertical-align: middle; padding-left: 15px; box-sizing: border-box; width: calc(95% - 38px);\"\u003e\r\n\u003cp style=\"font-weight: bold; margin-top: 10px;\"\u003eNote: \u003c\/p\u003e\r\n\u003cdiv data-page-id=\"L8M3dzcInowvyzxExx3cAB6Wnxc\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"\u003e\r\n\u003cdiv class=\" old-record-id-XY1NdTzjJosRumxBgkvcUF1Xnth\"\u003eXIAO SoM User Manual open-sources all hardware and software materials of XIAO, providing professional product design guidelines to help you accelerate ideas off the ground, streamline product design, providing a seamless experience from module selection to mass production. You can check here to see more info.\u003c\/div\u003e\r\n\u003c\/div\u003e\r\n\u003c\/div\u003e\r\n\u003c\/div\u003e\r\n\u003cdiv class=\"ace-line ace-line old-record-id-XY1NdTzjJosRumxBgkvcUF1Xnth\"\u003e\u003cimg src=\"https:\/\/media-cdn.seeedstudio.com\/media\/wysiwyg\/111-photo\/image_14.png\" alt=\"\"\u003e\u003c\/div\u003e\r\n\u003cdiv class=\"ace-line ace-line old-record-id-XY1NdTzjJosRumxBgkvcUF1Xnth\"\u003e\r\n\u003cdiv data-page-id=\"L8M3dzcInowvyzxExx3cAB6Wnxc\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"\u003e\r\n\u003ch3 class=\" old-record-id-SPDbd8hOgo8nRNxntI4cXJj6n6c\"\u003eFeatures\u003c\/h3\u003e\r\n\u003c\/div\u003e\r\n\u003c\/div\u003e\r\n\u003c\/div\u003e\r\n\u003c\/div\u003e\r\n\u003cul\u003e\r\n\u003cli\u003e\u003cstrong\u003eHigh-Efficiency ARM Cortex-M0+ MCU\u003c\/strong\u003e\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\u003cp\u003ePowered by the Microchip ATSAMD21G18A ARM Cortex-M0+ processor running at 48MHz, XIAO SAMD21 Plus delivers an excellent balance between computing performance and ultra-low power consumption. Native USB support enables USB HID devices, MIDI controllers, USB serial communication, and numerous embedded USB applications. Fully compatible with Arduino, PlatformIO, CircuitPython, TinyGo, and other popular development ecosystems, it is suitable for projects ranging from STEM education to commercial embedded products.\u003c\/p\u003e\r\n\u003cul\u003e\r\n\u003cli\u003e\u003cstrong\u003eMulti-Language Development Ecosystem\u003c\/strong\u003e\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\u003cp\u003eStart quickly with the Arduino IDE for rapid prototyping, develop efficiently with PlatformIO, or explore embedded scripting using CircuitPython and TinyGo. Backed by extensive community resources and comprehensive documentation, XIAO SAMD21 Plus provides a beginner-friendly experience while remaining flexible enough for professional development workflows.\u003c\/p\u003e\r\n\u003cul\u003e\r\n\u003cli\u003e\u003cstrong\u003eEfficient Power Management\u003c\/strong\u003e\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\u003cp\u003eAn onboard PMIC enables direct Li-ion battery connection with integrated charging management and 3V3\/BAT backflow protection. The board can safely operate from USB power, battery power, or both simultaneously without requiring additional external charging circuitry, simplifying portable and battery-powered product design.\u003c\/p\u003e\r\n\u003cp\u003eThe integrated Charge LED provides intuitive charging status indication, making battery management easier during both development and daily use.\u003c\/p\u003e\r\n\u003cul\u003e\r\n\u003cli\u003e\u003cstrong\u003eExpanded I\/O for Advanced Applications\u003c\/strong\u003e\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\u003cp\u003eThe redesigned backside layout introduces 16 additional GPIOs through 1.27mm-pitch SMD castellations, significantly expanding the available I\/O resources while preserving the compact XIAO footprint.\u003c\/p\u003e\r\n\u003cp\u003eThese additional GPIOs allow developers to connect more sensors, peripherals, displays, and communication interfaces without relying on external GPIO expanders, making XIAO SAMD21 Plus especially suitable for custom carrier boards, advanced embedded applications, and production-ready System-on-Module (SoM) designs.\u003c\/p\u003e\r\n\u003cul\u003e\r\n\u003cli\u003e\u003cstrong\u003eUniversal Compatibility — Standardized Backside Layout\u003c\/strong\u003e\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\u003cp\u003eFollowing the unified XIAO Plus hardware standard, XIAO SAMD21 Plus adopts the standardized backside layout with aligned battery pads, debugger pads, and SMD castellations.\u003c\/p\u003e\r\n\u003cp\u003eThis standardized design ensures compatibility with current and future XIAO expansion boards, accessories, and custom carrier boards, allowing developers to migrate between different XIAO Plus modules with minimal hardware redesign.\u003c\/p\u003e\r\n\u003cul\u003e\r\n\u003cli\u003e\u003cstrong\u003eClassic XIAO Form Factor\u003c\/strong\u003e\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\u003cp\u003eDespite the significant hardware upgrades, XIAO SAMD21 Plus retains the iconic 21 × 17.8 mm thumb-sized footprint and the familiar 2.54mm pin header layout.\u003c\/p\u003e\r\n\u003cp\u003eIts compact size, lightweight design, and single-sided component placement make it ideal for wearable electronics, portable devices, robotics, sensor nodes, and space-constrained embedded applications.\u003c\/p\u003e\r\n\u003cul\u003e\r\n\u003cli\u003e\u003cstrong\u003eNative Compatibility with the XIAO Ecosystem\u003c\/strong\u003e\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\u003cp\u003eXIAO SAMD21 Plus is fully compatible with the growing XIAO accessory ecosystem, including expansion boards, displays, Grove modules, CAN Bus modules, LoRa modules, LED Matrix, Round Display, Vision AI Sensor, ePaper Displays, mmWave sensors, GPS modules, relay modules, Bus Servo Drivers, and many more.\u003c\/p\u003e\r\n\u003cp\u003eWith standardized hardware interfaces across the XIAO family, developers can rapidly prototype ideas while benefiting from an extensive ecosystem that supports applications ranging from education to industrial IoT.\u003c\/p\u003e\u003cbr\u003e\u003cbr\u003e\u003ctable style=\"width: 84.375%; height: 572.583px;\"\u003e\n\u003ccolgroup\u003e\n\u003ccol style=\"width: 25.1925%;\"\u003e\n\u003ccol style=\"width: 47.6348%;\"\u003e\n\u003ccol style=\"width: 27.0627%;\"\u003e\n\u003c\/colgroup\u003e\r\n\u003ctbody\u003e\r\n\u003ctr style=\"height: 19.6833px;\"\u003e\r\n\u003ctd style=\"height: 19.6833px;\"\u003eProduct Name\u003c\/td\u003e\r\n\u003ctd style=\"height: 19.6833px;\"\u003eSeeed Studio XIAO SAMD21\u003c\/td\u003e\r\n\u003ctd style=\"height: 19.6833px;\"\u003eSeeed Studio XIAO SAMD21 Plus\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr style=\"height: 19.6833px;\"\u003e\r\n\u003ctd style=\"height: 19.6833px;\"\u003eChipset\u003c\/td\u003e\r\n\u003ctd style=\"height: 19.6833px;\" colspan=\"2\"\u003e\u003ca href=\"https:\/\/www.microchip.com\/en-us\/product\/atsamd21g18\"\u003eMicrochip SAMD21G18\u003c\/a\u003e\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr style=\"height: 19.6833px;\"\u003e\r\n\u003ctd style=\"height: 19.6833px;\"\u003eProcessor\u003c\/td\u003e\r\n\u003ctd style=\"height: 19.6833px;\" colspan=\"2\"\u003eARM Cortex-M0+ processor runs at up to 48 MHz.\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr style=\"height: 19.6833px;\"\u003e\r\n\u003ctd style=\"height: 19.6833px;\"\u003eRAM\u003c\/td\u003e\r\n\u003ctd style=\"height: 19.6833px;\" colspan=\"2\"\u003e32KB SRAM\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr style=\"height: 19.6833px;\"\u003e\r\n\u003ctd style=\"height: 19.6833px;\"\u003eFlash\u003c\/td\u003e\r\n\u003ctd style=\"height: 19.6833px;\" colspan=\"2\"\u003e256KB Flash\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr style=\"height: 0px;\"\u003e\r\n\u003ctd style=\"height: 160.283px;\" rowspan=\"4\"\u003eInterface\u003c\/td\u003e\r\n\u003ctd style=\"height: 160.283px;\" rowspan=\"4\"\u003eGPIO Pin x14\u003cbr\u003eDigital Pin x11\u003cbr\u003eAnalog Pin x11\u003cbr\u003eDAC x1\u003cbr\u003eI2C x1\u003cbr\u003eUART x1\u003cbr\u003eSPI x1\u003c\/td\u003e\r\n\u003ctd style=\"height: 160.283px;\" rowspan=\"4\"\u003eGPIO Pin x30\u003cbr\u003eDigital Pin x27\u003cbr\u003eAnalog Pin x11\u003cbr\u003eDAC x1\u003cbr\u003eI2C x2\u003cbr\u003eUART x1\u003cbr\u003eSPI x1\u003cbr\u003eI2S ×1\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr style=\"height: 0px;\"\u003e\u003c\/tr\u003e\r\n\u003ctr style=\"height: 0px;\"\u003e\u003c\/tr\u003e\r\n\u003ctr style=\"height: 160.283px;\"\u003e\u003c\/tr\u003e\r\n\u003ctr style=\"height: 78.7333px;\"\u003e\r\n\u003ctd style=\"height: 78.7333px;\"\u003eOnboard\u003c\/td\u003e\r\n\u003ctd style=\"height: 78.7333px;\"\u003eUser LED x1\u003cbr\u003ePower LED x1\u003cbr\u003eStatus LEDs for Serial Communication (TX\/RX Indicators) x2\u003c\/td\u003e\r\n\u003ctd style=\"height: 78.7333px;\"\u003eRGB LED x1\u003cbr\u003eCharge LED ×1\u003cbr\u003eReset Button x1\u003cbr\u003eBoot Button x1\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr style=\"height: 19.6833px;\"\u003e\r\n\u003ctd style=\"height: 19.6833px;\"\u003eBattery Management (PMIC)\u003c\/td\u003e\r\n\u003ctd style=\"height: 19.6833px;\"\u003eNone\u003c\/td\u003e\r\n\u003ctd style=\"height: 19.6833px;\"\u003eOnboard PMIC\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr style=\"height: 39.3667px;\"\u003e\r\n\u003ctd style=\"height: 39.3667px;\"\u003ePower\u003c\/td\u003e\r\n\u003ctd style=\"height: 39.3667px;\" colspan=\"2\"\u003eInput Voltage (Type-C): 5V\u003cbr\u003eInput Voltage (BAT): 5V\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr style=\"height: 39.3667px;\"\u003e\r\n\u003ctd style=\"height: 39.3667px;\"\u003eBAT-to-3V3 Backflow Protection\u003c\/td\u003e\r\n\u003ctd style=\"height: 39.3667px;\"\u003eNo\u003c\/td\u003e\r\n\u003ctd style=\"height: 39.3667px;\"\u003eYes\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr style=\"height: 19.6833px;\"\u003e\r\n\u003ctd style=\"height: 19.6833px;\"\u003eWorking Temperature\u003c\/td\u003e\r\n\u003ctd style=\"height: 19.6833px;\" colspan=\"2\"\u003e-40°C ~ 85°C\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr style=\"height: 19.6833px;\"\u003e\r\n\u003ctd style=\"height: 19.6833px;\"\u003eDimensions\u003c\/td\u003e\r\n\u003ctd style=\"height: 19.6833px;\" colspan=\"2\"\u003e21 x 17.8mm\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr style=\"height: 19.6833px;\"\u003e\r\n\u003ctd style=\"height: 19.6833px;\"\u003eSoftware Compatibility\u003c\/td\u003e\r\n\u003ctd style=\"height: 19.6833px;\" colspan=\"2\"\u003eArduino, PlatformIO, MicroPython, CircuitPython, Zephyr,and \u003ca href=\"https:\/\/wiki.seeedstudio.com\/xiao_topic_page\/\"\u003emore to come\u003c\/a\u003e\n\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr style=\"height: 77.6833px;\"\u003e\r\n\u003ctd style=\"height: 77.6833px;\"\u003eVarients\u003c\/td\u003e\r\n\u003ctd style=\"height: 77.6833px;\" colspan=\"2\"\u003e\r\n\u003cp\u003e● \u003ca href=\"https:\/\/www.seeedstudio.com\/Seeeduino-XIAO-Pre-Soldered-p-4747.html\"\u003eXIAO SAMD21 (Pre-Soldered)\u003c\/a\u003e\u003c\/p\u003e\r\n\u003cp\u003e● \u003ca href=\"https:\/\/www.seeedstudio.com\/Seeeduino-XIAO-3Pcs-p-4546.html\"\u003eXIAO SAMD21 3PCS Pack\u003c\/a\u003e\u003c\/p\u003e\r\n\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003c\/tbody\u003e\r\n\u003c\/table\u003e\u003cbr\u003e\u003cbr\u003e\u003cul\u003e\r\n\u003cli\u003e\u003cstrong\u003ePinOut\u003c\/strong\u003e\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\u003cp\u003e\u003cimg src=\"https:\/\/www.seeedstudio.com\/media\/catalog\/product\/1\/0\/100031394-hardware_img_1_1.png\" alt=\"image\"\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cimg src=\"https:\/\/www.seeedstudio.com\/media\/catalog\/product\/1\/0\/100031394-hardware_img_2_1.png\" alt=\"image\"\u003e\u003c\/p\u003e\u003cbr\u003e\u003cbr\u003e\u003cul\u003e\r\n\u003cli\u003eSTEM Education - Perfect for learning embedded programming, Arduino development, electronics, and ARM Cortex-M microcontrollers. Rich documentation and native USB support make it an excellent platform for beginners and educators.\u003c\/li\u003e\r\n\u003cli\u003eUSB HID Devices – Leverage the ATSAMD21 native USB peripheral to create custom keyboards, macro pads, game controllers, MIDI instruments, USB serial devices, and other Human Interface Device (HID) applications.\u003c\/li\u003e\r\n\u003cli\u003eWearable Electronics – The compact 21 × 17.8 mm footprint, onboard battery charging, and low-power MCU make XIAO SAMD21 Plus an excellent choice for smart badges, wearable sensors, health monitoring devices, and portable electronics.\u003c\/li\u003e\r\n\u003cli\u003eEmbedded Prototyping - With 16 additional GPIOs, developers can integrate more peripherals without external GPIO expanders, enabling faster prototyping of complex embedded systems while maintaining the familiar XIAO form factor.\u003c\/li\u003e\r\n\u003cli\u003eSmart Home \u0026amp; Automation - Connect multiple Grove modules, displays, communication modules, and sensors to build automation controllers, environmental monitoring stations, lighting controllers, and edge computing devices.\u003c\/li\u003e\r\n\u003cli\u003eRobotics – Suitable for educational robots, motor controllers, sensor hubs, and compact robotic platforms requiring reliable low-power control and flexible I\/O expansion.\u003c\/li\u003e\r\n\u003cli\u003eHuman-Machine Interface (HMI) - The onboard WS2812 RGB LED together with dedicated Reset and Boot buttons provides convenient visual feedback and user interaction, making XIAO SAMD21 Plus well suited for compact control panels, interactive devices, and embedded user interfaces.\u003c\/li\u003e\r\n\u003cli\u003eBattery-Powered IoT – The integrated PMIC and Li-ion charging circuit simplify the design of portable IoT devices, wireless sensor nodes, environmental monitoring systems, and remote data loggers.\u003c\/li\u003e\r\n\u003cli\u003eProduction-Ready SoM Design – Designed for board-to-board soldering through castellated edges, XIAO SAMD21 Plus serves as a production-ready System-on-Module (SoM). The additional GPIOs and standardized XIAO Plus layout simplify hardware migration from prototype to mass production.\u003c\/li\u003e\r\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cp\u003e\u003ca href=\"https:\/\/wiki.seeedstudio.com\/Seeeduino-XIAO\/#xiao-samd21-plus\"\u003eWiki-XIAO SAMD21 Plus Resources\u003c\/a\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003ca href=\"https:\/\/files.seeedstudio.com\/wiki\/XIAO\/XIAO-Reference-Design.pdf\"\u003eSeeed Studio XIAO Use Case\u003c\/a\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003ca href=\"https:\/\/files.seeedstudio.com\/wiki\/XIAO\/3D-Printing-Case-Studies.pdf\"\u003e3D Printing \"Case\" Studies\u003c\/a\u003e\u003c\/p\u003e\u003cbr\u003e\u003cbr\u003e\u003ctable style=\"width: 87.9022%;\"\u003e\r\n\u003ctbody\u003e\r\n\u003ctr\u003e\r\n\u003ctd style=\"width: 92.3947%;\"\u003eSeeed Studio XIAO SAMD21 Plus\u003c\/td\u003e\r\n\u003ctd style=\"width: 7.54243%;\"\u003ex1\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\r\n\u003ctd style=\"width: 92.3947%;\"\u003e7-pin header\u003c\/td\u003e\r\n\u003ctd style=\"width: 7.54243%;\"\u003ex2\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003c\/tbody\u003e\r\n\u003c\/table\u003e\u003cbr\u003e\u003cbr\u003e\u003cdiv class=\"certification\"\u003e\r\n    \u003ca target=\"_blank\" href=\"https:\/\/files.seeedstudio.com\/Seeed_Certificate\/documents_certificate\/100031394-CE.pdf\"\u003e\u003cimg src=\"https:\/\/media-cdn.seeedstudio.com\/media\/wysiwyg\/certification\/CE.png\"\u003e\u003c\/a\u003e\u003ca target=\"_blank\" href=\"https:\/\/files.seeedstudio.com\/Seeed_Certificate\/documents_certificate\/100031394-EUDOC.pdf\"\u003e\u003cimg src=\"https:\/\/media-cdn.seeedstudio.com\/media\/wysiwyg\/certification\/EUDOC.png\"\u003e\u003c\/a\u003e\u003ca target=\"_blank\" href=\"https:\/\/files.seeedstudio.com\/Seeed_Certificate\/documents_certificate\/100031394-FCC.pdf\"\u003e\u003cimg src=\"https:\/\/media-cdn.seeedstudio.com\/media\/wysiwyg\/certification\/FCC.png\"\u003e\u003c\/a\u003e\u003ca target=\"_blank\" href=\"https:\/\/files.seeedstudio.com\/Seeed_Certificate\/documents_certificate\/100031394-ROHS.pdf\"\u003e\u003cimg src=\"https:\/\/media-cdn.seeedstudio.com\/media\/wysiwyg\/certification\/ROHS.png\"\u003e\u003c\/a\u003e\u003ca target=\"_blank\" href=\"https:\/\/files.seeedstudio.com\/Seeed_Certificate\/documents_certificate\/100031394-UKDOC.pdf\"\u003e\u003cimg src=\"https:\/\/media-cdn.seeedstudio.com\/media\/wysiwyg\/certification\/UKDOC.png\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\r\n\r\n\r\n\u003ctable class=\"table\"\u003e\u003ctbody\u003e\r\n\u003ctr\u003e\r\n                  \u003ctd class=\"name\"\u003eHSCODE\u003c\/td\u003e\r\n                  \u003ctd\u003e8471504090\u003c\/td\u003e\r\n              \u003c\/tr\u003e\n\u003ctr\u003e\r\n                  \u003ctd class=\"name\"\u003eUSHSCODE\u003c\/td\u003e\r\n                  \u003ctd\u003e8517180050\u003c\/td\u003e\r\n              \u003c\/tr\u003e\n\u003ctr\u003e\r\n                  \u003ctd class=\"name\"\u003eUPC\u003c\/td\u003e\r\n                  \u003ctd\u003e \u003c\/td\u003e\r\n              \u003c\/tr\u003e\n\u003ctr\u003e\r\n                  \u003ctd class=\"name\"\u003eEUHSCODE\u003c\/td\u003e\r\n                  \u003ctd\u003e8471707000\u003c\/td\u003e\r\n              \u003c\/tr\u003e\n\u003ctr\u003e\r\n                  \u003ctd class=\"name\"\u003eCOO\u003c\/td\u003e\r\n                  \u003ctd\u003eCHINA\u003c\/td\u003e\r\n              \u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\r\n\r\n\r\n\u003ctable class=\"table\"\u003e\u003ctbody\u003e\r\n    \u003c\/tbody\u003e\u003c\/table\u003e\r\n\u003cbr\u003e\u003cbr\u003eArray\u003cbr\u003e\u003cbr\u003e","brand":"Seeed Studio","offers":[{"title":"Default Title","offer_id":42659517726802,"sku":"SS100031394","price":13.49,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0735\/0383\/files\/100031394-gallery_img_2_1.jpg?v=1788065004","url":"https:\/\/www.pakronics.com.au\/products\/seeed-studio-xiao-samd21-plus-ss100031394","provider":"Pakronics®","version":"1.0","type":"link"}