Seeed Studio XIAO Expansion Board is a powerful functional expansion board for Seeed Studio XIAO series of only half Raspberry Pi 4 size. It enables building prototypes and projects in an easy and quick way. With its rich peripherals, you could explore the infinite possibilities of Seeed Studio XIAO series. Circuit python is also well supported by this board.
Key Features
Quick Prototyping:Easy debug and Reset with RESET button and SWD pin led out to the male header. 0.96” OLED, enables visual data to display without PC serial monitor.
Rich peripherals:OLED display, RTC, expandable memory space, passive buzzer, user button, on board battery management chip… One board on hand to explore the infinite possibilities of Seeed Studio XIAO series.
Mini Size:Compact and elegant with only half Raspberry Pi 4 size, perfect for tiny and wearable projects.
No Soldering Needed:All pins are led out. Convenient plug-and-play Grove connectors support multiple data protocols, including IIC, Uart, and Analog/Digital.
Circuit Python Supported:Well supports circuit python. Mini SD card slot enables memory space expansion, making it possible to allocate more libraries needed in prototyping and project building.
Many users adore Seeed Studio XIAO series because of its mini size and elegant design, so we try our best to keep the size as mini as we could when persuing the powerful function and rich interfaces. As you could see, the board is only half Raspberry Pi 4 size.
Rich peripherals on board including:
OLED display: Visual data display without connecting to PC, which enables debug in a more efficient way, and builds application such as a sensor hub, data monitor system, .etc
RESET button: No more jumper wire and short circuit, easy reset with just one click.
SWD debug: SWD pin led out as male pin header, making debugger connection and firmware download much easier.
High precision RTC: High precision real-time clock with battery backup, enables maintaining accurate time when the main power is turned off.
Expandable memory: With a MicroSD card slot on the back, no worry about the memory limit any more when adding libraries and using circuit python.
User button: Besides the RESET button, also provide another user-defined button.
Passive buzzer: Same passive buzzer on Wio Terminal, with which you could change the PMW frequency to award different beep sound to get a "buzzer music".
Grove connectors: All pin led out, plug-and-play grove connectors support common data protocols (Grove IIC2, Grove UART1, A0/D0 Grove*1)
Lipo Battery Charging: JST2.0mm standard lipo battery connector and battery management system, supports both USB and lipo battery power supply, and easy onboard battery recharge.
5V servo connector: 5V output led out to male header for 5V servo and sensor connection.
Though with all these rich peripherals, you may find Seeed Studio XIAO Expansion Board also has very high cost performance as Seeed Studio XIAO does.
Seeed Studio SAMD21 XIAO has become one of the hottest products in the Seeeduino series since its release. You may adore its small size and elegant design, powerful CPU powered by SAMD21, or rich interfaces of GPIOs, but no matter what reason makes Seeed Studio XIAO attract to you, now you have one more reason now - Seeed Studio XIAO Expansion Board, which will definitely help you to explore infinite possibilities with Seeed Studio XIAO Series.
Seeed Studio XIAO expansion board supports Seeed Studio XIAO SAMD21, Seeed Studio XIAO RP2040, Seeed Studio XIAO nRF52840, Seeed Studio XIAO nRF52840 Sense.
{"id":9114630127933,"title":"Seeed Studio Expansion Board for XIAO with Grove OLED - IIC, Uart, Analog\/Digital","handle":"seeed-studio-expansion-board-for-xiao","description":"\u003cblockquote\u003e\u003cspan style=\"color: #c20000;\" data-mce-style=\"color: #c20000;\"\u003eSeeed Studio XIAO Expansion Board is a powerful functional expansion board for Seeed Studio XIAO series of only half Raspberry Pi 4 size. It enables building prototypes and projects in an easy and quick way. With its rich peripherals, you could explore the infinite possibilities of Seeed Studio XIAO series. Circuit python is also well supported by this board.\u003c\/span\u003e\u003c\/blockquote\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuick Prototyping:\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003eEasy debug and Reset with RESET button and SWD pin led out to the male header. 0.96” OLED, enables visual data to display without PC serial monitor.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRich peripherals:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eOLED display, RTC, expandable memory space, passive buzzer, user button, on board battery management chip… One board on hand to explore the infinite possibilities of Seeed Studio XIAO series.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMini Size:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eCompact and elegant with only half Raspberry Pi 4 size, perfect for tiny and wearable projects.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo Soldering Needed:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eAll pins are led out. Convenient plug-and-play Grove connectors support multiple data protocols, including IIC, Uart, and Analog\/Digital.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCircuit Python Supported:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eWell supports circuit python. Mini SD card slot enables memory space expansion, making it possible to allocate more libraries needed in prototyping and project building.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cdiv class=\"iframe-block\"\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/WKOseQoXEh4?si=QAyF3ERLCF7x6J1k\" height=\"315\" width=\"560\" allowfullscreen=\"\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" frameborder=\"0\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003eMany users adore Seeed Studio XIAO series because of its mini size and elegant design, so we try our best to keep the size as mini as we could when persuing the powerful function and rich interfaces. As you could see, the board is only half Raspberry Pi 4 size.\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp align=\"justify\" data-style=\"text-align: justify;\"\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp align=\"justify\"\u003e\u003cimg src=\"https:\/\/files.seeedstudio.com\/wiki\/Seeeduino-XIAO-Expansion-Board\/size_comparison4.png\" data-src=\"https:\/\/files.seeedstudio.com\/wiki\/Seeeduino-XIAO-Expansion-Board\/size_comparison4.png\" data-original=\"https:\/\/files.seeedstudio.com\/wiki\/Seeeduino-XIAO-Expansion-Board\/size_comparison4.png\" height=\"800\" width=\"800\" class=\"lazy\"\u003e\u003c\/p\u003e\n\u003ch2\u003e\n\u003cstrong\u003e\u003c\/strong\u003e \u003c\/h2\u003e\n\u003ch2\u003eRich peripherals on board including:\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOLED display\u003c\/strong\u003e: Visual data display without connecting to PC, which enables debug in a more efficient way, and builds application such as a sensor hub, data monitor system, .etc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRESET button\u003c\/strong\u003e: No more jumper wire and short circuit, easy reset with just one click.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSWD debug\u003c\/strong\u003e: SWD pin led out as male pin header, making debugger connection and firmware download much easier.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh precision RTC\u003c\/strong\u003e: High precision real-time clock with battery backup, enables maintaining accurate time when the main power is turned off.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExpandable memory\u003c\/strong\u003e: With a MicroSD card slot on the back, no worry about the memory limit any more when adding libraries and using circuit python.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUser button\u003c\/strong\u003e: Besides the RESET button, also provide another user-defined button.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePassive buzzer\u003c\/strong\u003e: Same passive buzzer on Wio Terminal, with which you could change the PMW frequency to award different beep sound to get a \"buzzer music\".\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrove connectors\u003c\/strong\u003e: All pin led out, plug-and-play grove connectors support common data protocols (Grove IIC\u003cem\u003e2, Grove UART\u003c\/em\u003e1, A0\/D0 Grove*1)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLipo Battery Charging\u003c\/strong\u003e: JST2.0mm standard lipo battery connector and battery management system, supports both USB and lipo battery power supply, and easy onboard battery recharge.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e5V servo connector\u003c\/strong\u003e: 5V output led out to male header for 5V servo and sensor connection.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/files.seeedstudio.com\/wiki\/Seeeduino-XIAO-Expansion-Board\/444.png\" data-src=\"https:\/\/files.seeedstudio.com\/wiki\/Seeeduino-XIAO-Expansion-Board\/444.png\" data-original=\"https:\/\/files.seeedstudio.com\/wiki\/Seeeduino-XIAO-Expansion-Board\/444.png\" height=\"900\" width=\"900\" class=\"lazy\"\u003e\u003c\/p\u003e\n\u003cdiv\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThough with all these rich peripherals, you may find Seeed Studio XIAO Expansion Board also has very high cost performance as Seeed Studio XIAO does.\u003c\/p\u003e\n\u003cp align=\"justify\" data-style=\"text-align: justify;\"\u003e \u003c\/p\u003e\n\u003cp align=\"justify\"\u003e\u003cimg src=\"https:\/\/files.seeedstudio.com\/wiki\/Seeeduino-XIAO-Expansion-Board\/high_cost_performance7.png\" data-src=\"https:\/\/files.seeedstudio.com\/wiki\/Seeeduino-XIAO-Expansion-Board\/high_cost_performance7.png\" data-original=\"https:\/\/files.seeedstudio.com\/wiki\/Seeeduino-XIAO-Expansion-Board\/high_cost_performance7.png\" height=\"800\" width=\"800\" class=\"lazy\"\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eSeeed Studio SAMD21 XIAO has become one of the hottest products in the Seeeduino series since its release. You may adore its small size and elegant design, powerful CPU powered by SAMD21, or rich interfaces of GPIOs, but no matter what reason makes Seeed Studio XIAO attract to you, now you have one more reason now - Seeed Studio XIAO Expansion Board, which will definitely help you to explore infinite possibilities with Seeed Studio XIAO Series.\u003c\/p\u003e\n\u003cp\u003eSeeed Studio XIAO expansion board supports Seeed Studio XIAO SAMD21, Seeed Studio XIAO RP2040, Seeed Studio XIAO nRF52840, Seeed Studio XIAO nRF52840 Sense.\u003c\/p\u003e\n\u003ch2\u003e \u003c\/h2\u003e\n\u003ch2\u003eApplication\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eSMD debug\u003c\/li\u003e\n\u003cli\u003eRapid prototyping\u003c\/li\u003e\n\u003cli\u003eData display\u003c\/li\u003e\n\u003cli\u003eMini Size Project\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cp align=\"justify\"\u003e\u003cimg src=\"https:\/\/files.seeedstudio.com\/wiki\/Seeeduino-XIAO-Expansion-Board\/application_scenarios_new.png\" data-src=\"https:\/\/files.seeedstudio.com\/wiki\/Seeeduino-XIAO-Expansion-Board\/application_scenarios_new.png\" data-original=\"https:\/\/files.seeedstudio.com\/wiki\/Seeeduino-XIAO-Expansion-Board\/application_scenarios_new.png\" height=\"800\" width=\"800\" class=\"lazy\"\u003e\u003c\/p\u003e\n\u003cdiv\u003e\n\u003ch2\u003e \u003c\/h2\u003e\n\u003ch2\u003eHardware Overview\u003c\/h2\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/files.seeedstudio.com\/wiki\/Seeeduino-XIAO-Expansion-Board\/2222222222222222222222222222221.jpg\" data-src=\"https:\/\/files.seeedstudio.com\/wiki\/Seeeduino-XIAO-Expansion-Board\/2222222222222222222222222222221.jpg\" data-original=\"https:\/\/files.seeedstudio.com\/wiki\/Seeeduino-XIAO-Expansion-Board\/2222222222222222222222222222221.jpg\" height=\"800\" width=\"800\" class=\"lazy\" style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/files.seeedstudio.com\/wiki\/Seeeduino-XIAO-Expansion-Board\/1111111111111111111111110.jpg\" data-src=\"https:\/\/files.seeedstudio.com\/wiki\/Seeeduino-XIAO-Expansion-Board\/1111111111111111111111110.jpg\" data-original=\"https:\/\/files.seeedstudio.com\/wiki\/Seeeduino-XIAO-Expansion-Board\/1111111111111111111111110.jpg\" height=\"800\" width=\"800\" class=\"lazy\"\u003e\u003c\/p\u003e\n\u003ch2 align=\"justify\"\u003e \u003c\/h2\u003e\n\u003ch2 align=\"justify\"\u003eSpecifications\u003c\/h2\u003e\n\u003ctable style=\"width: 60%;\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth class=\"tg-pu0z\"\u003eItem\u003c\/th\u003e\n\u003cth class=\"tg-pu0z\"\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-fymr\"\u003ePower Supply\u003c\/td\u003e\n\u003ctd class=\"tg-0pky\"\u003e5v \/ 3.7V Lithium Battery\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-fymr\"\u003eRTC chip\u003c\/td\u003e\n\u003ctd class=\"tg-0pky\"\u003ePCF8563T\/5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-fymr\"\u003eRTC battery\u003c\/td\u003e\n\u003ctd class=\"tg-0pky\"\u003eCR1220\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-fymr\"\u003eExpandable memory\u003c\/td\u003e\n\u003ctd class=\"tg-0pky\"\u003eMicroSD Card\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-fymr\"\u003eScreen\u003c\/td\u003e\n\u003ctd class=\"tg-0pky\"\u003e0.96 OLED display\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-fymr\"\u003eOther External Equipment\u003c\/td\u003e\n\u003ctd class=\"tg-0pky\"\u003ePassive buzzer, user button, 5Vservo connector\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-fymr\"\u003echarging current\u003c\/td\u003e\n\u003ctd class=\"tg-0pky\"\u003eMax: 460mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-fymr\"\u003eGrove Interface\u003c\/td\u003e\n\u003ctd class=\"tg-0pky\"\u003eGrove I2C *2, Grove UART *1, A0\/D0 Grove *1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch2\u003e \u003c\/h2\u003e\n\u003ch2\u003ePinout\u003c\/h2\u003e\n\u003cp align=\"justify\" data-style=\"text-align: justify;\"\u003e\u003cimg src=\"https:\/\/files.seeedstudio.com\/wiki\/Seeeduino-XIAO-Expansion-Board\/555.png\" data-src=\"https:\/\/files.seeedstudio.com\/wiki\/Seeeduino-XIAO-Expansion-Board\/555.png\" data-original=\"https:\/\/files.seeedstudio.com\/wiki\/Seeeduino-XIAO-Expansion-Board\/555.png\" height=\"900\" width=\"900\" class=\"lazy\"\u003e\u003c\/p\u003e\n\u003ch2\u003e \u003c\/h2\u003e\n\u003ch2\u003ePart List\u003c\/h2\u003e\n\u003ctable style=\"width: 50%; font-size: 12px;\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth class=\"tg-kftd\"\u003eSeeeduino XIAO expansion board\u003c\/th\u003e\n\u003cth class=\"tg-kftd\"\u003eX 1\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003c\/table\u003e\n\n\n\n\n\u003cdiv id=\"detail-target-1\" class=\"detail-label-item\"\u003e\n\u003ch3 class=\"detail-label-title\"\u003e \u003c\/h3\u003e\n\u003cdiv id=\"learn-document-tab\" class=\"detail-item-content data item content\"\u003e\n\u003cdiv class=\"document-content\"\u003e\n\u003ch2\u003eDocumentations\u003c\/h2\u003e\n\u003cdiv class=\"product documents-tab\"\u003e\n\u003cdiv class=\"value documents-info\"\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca rel=\"noopener\" href=\"https:\/\/files.seeedstudio.com\/wiki\/XIAO\/XIAO-Reference-Design.pdf\" target=\"_blank\"\u003eXIAO Reference Design\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca rel=\"noopener\" href=\"https:\/\/files.seeedstudio.com\/wiki\/XIAO\/3D-Printing-Case-Studies.pdf\" target=\"_blank\"\u003e3D Printing \"Case\" Studies\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","published_at":"2024-02-27T07:06:44+05:30","created_at":"2024-02-27T07:05:42+05:30","vendor":"ThinkRobotics.in","type":"","tags":["102010328","Arduino","CircuitPython","dev","dev kit","Development","Kit","Lite","OLED","SEEED","SEEEDSTD","Seeeduino","XIAO"],"price":174999,"price_min":174999,"price_max":174999,"available":true,"price_varies":false,"compare_at_price":199999,"compare_at_price_min":199999,"compare_at_price_max":199999,"compare_at_price_varies":false,"variants":[{"id":47934155784509,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"SBC2159","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"Seeed Studio Expansion Board for XIAO with Grove OLED - IIC, Uart, Analog\/Digital","public_title":null,"options":["Default Title"],"price":174999,"weight":50,"compare_at_price":199999,"inventory_management":"shopify","barcode":"47934155784509","requires_selling_plan":false,"selling_plan_allocations":[]}],"images":["\/\/thinkrobotics.com\/cdn\/shop\/files\/SBC2159-1.jpg?v=1708998098","\/\/thinkrobotics.com\/cdn\/shop\/files\/SBC2159-2.png?v=1708998098","\/\/thinkrobotics.com\/cdn\/shop\/files\/SBC2159-3.png?v=1708998098","\/\/thinkrobotics.com\/cdn\/shop\/files\/SBC2159-4.png?v=1708998098","\/\/thinkrobotics.com\/cdn\/shop\/files\/SBC2159-5.png?v=1708998098"],"featured_image":"\/\/thinkrobotics.com\/cdn\/shop\/files\/SBC2159-1.jpg?v=1708998098","options":["Title"],"media":[{"alt":null,"id":36577181729085,"position":1,"preview_image":{"aspect_ratio":1.0,"height":1600,"width":1600,"src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/SBC2159-1.jpg?v=1708998098"},"aspect_ratio":1.0,"height":1600,"media_type":"image","src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/SBC2159-1.jpg?v=1708998098","width":1600},{"alt":null,"id":36577181696317,"position":2,"preview_image":{"aspect_ratio":1.0,"height":900,"width":900,"src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/SBC2159-2.png?v=1708998098"},"aspect_ratio":1.0,"height":900,"media_type":"image","src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/SBC2159-2.png?v=1708998098","width":900},{"alt":null,"id":36577181663549,"position":3,"preview_image":{"aspect_ratio":1.0,"height":975,"width":975,"src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/SBC2159-3.png?v=1708998098"},"aspect_ratio":1.0,"height":975,"media_type":"image","src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/SBC2159-3.png?v=1708998098","width":975},{"alt":null,"id":36577181630781,"position":4,"preview_image":{"aspect_ratio":1.0,"height":950,"width":950,"src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/SBC2159-4.png?v=1708998098"},"aspect_ratio":1.0,"height":950,"media_type":"image","src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/SBC2159-4.png?v=1708998098","width":950},{"alt":null,"id":36577181598013,"position":5,"preview_image":{"aspect_ratio":1.0,"height":1025,"width":1025,"src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/SBC2159-5.png?v=1708998098"},"aspect_ratio":1.0,"height":1025,"media_type":"image","src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/SBC2159-5.png?v=1708998098","width":1025}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003cblockquote\u003e\u003cspan style=\"color: #c20000;\" data-mce-style=\"color: #c20000;\"\u003eSeeed Studio XIAO Expansion Board is a powerful functional expansion board for Seeed Studio XIAO series of only half Raspberry Pi 4 size. It enables building prototypes and projects in an easy and quick way. With its rich peripherals, you could explore the infinite possibilities of Seeed Studio XIAO series. Circuit python is also well supported by this board.\u003c\/span\u003e\u003c\/blockquote\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuick Prototyping:\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003eEasy debug and Reset with RESET button and SWD pin led out to the male header. 0.96” OLED, enables visual data to display without PC serial monitor.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRich peripherals:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eOLED display, RTC, expandable memory space, passive buzzer, user button, on board battery management chip… One board on hand to explore the infinite possibilities of Seeed Studio XIAO series.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMini Size:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eCompact and elegant with only half Raspberry Pi 4 size, perfect for tiny and wearable projects.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo Soldering Needed:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eAll pins are led out. Convenient plug-and-play Grove connectors support multiple data protocols, including IIC, Uart, and Analog\/Digital.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCircuit Python Supported:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eWell supports circuit python. Mini SD card slot enables memory space expansion, making it possible to allocate more libraries needed in prototyping and project building.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cdiv class=\"iframe-block\"\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/WKOseQoXEh4?si=QAyF3ERLCF7x6J1k\" height=\"315\" width=\"560\" allowfullscreen=\"\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" frameborder=\"0\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003eMany users adore Seeed Studio XIAO series because of its mini size and elegant design, so we try our best to keep the size as mini as we could when persuing the powerful function and rich interfaces. As you could see, the board is only half Raspberry Pi 4 size.\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp align=\"justify\" data-style=\"text-align: justify;\"\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp align=\"justify\"\u003e\u003cimg src=\"https:\/\/files.seeedstudio.com\/wiki\/Seeeduino-XIAO-Expansion-Board\/size_comparison4.png\" data-src=\"https:\/\/files.seeedstudio.com\/wiki\/Seeeduino-XIAO-Expansion-Board\/size_comparison4.png\" data-original=\"https:\/\/files.seeedstudio.com\/wiki\/Seeeduino-XIAO-Expansion-Board\/size_comparison4.png\" height=\"800\" width=\"800\" class=\"lazy\"\u003e\u003c\/p\u003e\n\u003ch2\u003e\n\u003cstrong\u003e\u003c\/strong\u003e \u003c\/h2\u003e\n\u003ch2\u003eRich peripherals on board including:\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOLED display\u003c\/strong\u003e: Visual data display without connecting to PC, which enables debug in a more efficient way, and builds application such as a sensor hub, data monitor system, .etc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRESET button\u003c\/strong\u003e: No more jumper wire and short circuit, easy reset with just one click.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSWD debug\u003c\/strong\u003e: SWD pin led out as male pin header, making debugger connection and firmware download much easier.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh precision RTC\u003c\/strong\u003e: High precision real-time clock with battery backup, enables maintaining accurate time when the main power is turned off.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExpandable memory\u003c\/strong\u003e: With a MicroSD card slot on the back, no worry about the memory limit any more when adding libraries and using circuit python.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUser button\u003c\/strong\u003e: Besides the RESET button, also provide another user-defined button.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePassive buzzer\u003c\/strong\u003e: Same passive buzzer on Wio Terminal, with which you could change the PMW frequency to award different beep sound to get a \"buzzer music\".\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrove connectors\u003c\/strong\u003e: All pin led out, plug-and-play grove connectors support common data protocols (Grove IIC\u003cem\u003e2, Grove UART\u003c\/em\u003e1, A0\/D0 Grove*1)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLipo Battery Charging\u003c\/strong\u003e: JST2.0mm standard lipo battery connector and battery management system, supports both USB and lipo battery power supply, and easy onboard battery recharge.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e5V servo connector\u003c\/strong\u003e: 5V output led out to male header for 5V servo and sensor connection.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/files.seeedstudio.com\/wiki\/Seeeduino-XIAO-Expansion-Board\/444.png\" data-src=\"https:\/\/files.seeedstudio.com\/wiki\/Seeeduino-XIAO-Expansion-Board\/444.png\" data-original=\"https:\/\/files.seeedstudio.com\/wiki\/Seeeduino-XIAO-Expansion-Board\/444.png\" height=\"900\" width=\"900\" class=\"lazy\"\u003e\u003c\/p\u003e\n\u003cdiv\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThough with all these rich peripherals, you may find Seeed Studio XIAO Expansion Board also has very high cost performance as Seeed Studio XIAO does.\u003c\/p\u003e\n\u003cp align=\"justify\" data-style=\"text-align: justify;\"\u003e \u003c\/p\u003e\n\u003cp align=\"justify\"\u003e\u003cimg src=\"https:\/\/files.seeedstudio.com\/wiki\/Seeeduino-XIAO-Expansion-Board\/high_cost_performance7.png\" data-src=\"https:\/\/files.seeedstudio.com\/wiki\/Seeeduino-XIAO-Expansion-Board\/high_cost_performance7.png\" data-original=\"https:\/\/files.seeedstudio.com\/wiki\/Seeeduino-XIAO-Expansion-Board\/high_cost_performance7.png\" height=\"800\" width=\"800\" class=\"lazy\"\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eSeeed Studio SAMD21 XIAO has become one of the hottest products in the Seeeduino series since its release. You may adore its small size and elegant design, powerful CPU powered by SAMD21, or rich interfaces of GPIOs, but no matter what reason makes Seeed Studio XIAO attract to you, now you have one more reason now - Seeed Studio XIAO Expansion Board, which will definitely help you to explore infinite possibilities with Seeed Studio XIAO Series.\u003c\/p\u003e\n\u003cp\u003eSeeed Studio XIAO expansion board supports Seeed Studio XIAO SAMD21, Seeed Studio XIAO RP2040, Seeed Studio XIAO nRF52840, Seeed Studio XIAO nRF52840 Sense.\u003c\/p\u003e\n\u003ch2\u003e \u003c\/h2\u003e\n\u003ch2\u003eApplication\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eSMD debug\u003c\/li\u003e\n\u003cli\u003eRapid prototyping\u003c\/li\u003e\n\u003cli\u003eData display\u003c\/li\u003e\n\u003cli\u003eMini Size Project\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cp align=\"justify\"\u003e\u003cimg src=\"https:\/\/files.seeedstudio.com\/wiki\/Seeeduino-XIAO-Expansion-Board\/application_scenarios_new.png\" data-src=\"https:\/\/files.seeedstudio.com\/wiki\/Seeeduino-XIAO-Expansion-Board\/application_scenarios_new.png\" data-original=\"https:\/\/files.seeedstudio.com\/wiki\/Seeeduino-XIAO-Expansion-Board\/application_scenarios_new.png\" height=\"800\" width=\"800\" class=\"lazy\"\u003e\u003c\/p\u003e\n\u003cdiv\u003e\n\u003ch2\u003e \u003c\/h2\u003e\n\u003ch2\u003eHardware Overview\u003c\/h2\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/files.seeedstudio.com\/wiki\/Seeeduino-XIAO-Expansion-Board\/2222222222222222222222222222221.jpg\" data-src=\"https:\/\/files.seeedstudio.com\/wiki\/Seeeduino-XIAO-Expansion-Board\/2222222222222222222222222222221.jpg\" data-original=\"https:\/\/files.seeedstudio.com\/wiki\/Seeeduino-XIAO-Expansion-Board\/2222222222222222222222222222221.jpg\" height=\"800\" width=\"800\" class=\"lazy\" style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/files.seeedstudio.com\/wiki\/Seeeduino-XIAO-Expansion-Board\/1111111111111111111111110.jpg\" data-src=\"https:\/\/files.seeedstudio.com\/wiki\/Seeeduino-XIAO-Expansion-Board\/1111111111111111111111110.jpg\" data-original=\"https:\/\/files.seeedstudio.com\/wiki\/Seeeduino-XIAO-Expansion-Board\/1111111111111111111111110.jpg\" height=\"800\" width=\"800\" class=\"lazy\"\u003e\u003c\/p\u003e\n\u003ch2 align=\"justify\"\u003e \u003c\/h2\u003e\n\u003ch2 align=\"justify\"\u003eSpecifications\u003c\/h2\u003e\n\u003ctable style=\"width: 60%;\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth class=\"tg-pu0z\"\u003eItem\u003c\/th\u003e\n\u003cth class=\"tg-pu0z\"\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-fymr\"\u003ePower Supply\u003c\/td\u003e\n\u003ctd class=\"tg-0pky\"\u003e5v \/ 3.7V Lithium Battery\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-fymr\"\u003eRTC chip\u003c\/td\u003e\n\u003ctd class=\"tg-0pky\"\u003ePCF8563T\/5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-fymr\"\u003eRTC battery\u003c\/td\u003e\n\u003ctd class=\"tg-0pky\"\u003eCR1220\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-fymr\"\u003eExpandable memory\u003c\/td\u003e\n\u003ctd class=\"tg-0pky\"\u003eMicroSD Card\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-fymr\"\u003eScreen\u003c\/td\u003e\n\u003ctd class=\"tg-0pky\"\u003e0.96 OLED display\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-fymr\"\u003eOther External Equipment\u003c\/td\u003e\n\u003ctd class=\"tg-0pky\"\u003ePassive buzzer, user button, 5Vservo connector\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-fymr\"\u003echarging current\u003c\/td\u003e\n\u003ctd class=\"tg-0pky\"\u003eMax: 460mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-fymr\"\u003eGrove Interface\u003c\/td\u003e\n\u003ctd class=\"tg-0pky\"\u003eGrove I2C *2, Grove UART *1, A0\/D0 Grove *1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch2\u003e \u003c\/h2\u003e\n\u003ch2\u003ePinout\u003c\/h2\u003e\n\u003cp align=\"justify\" data-style=\"text-align: justify;\"\u003e\u003cimg src=\"https:\/\/files.seeedstudio.com\/wiki\/Seeeduino-XIAO-Expansion-Board\/555.png\" data-src=\"https:\/\/files.seeedstudio.com\/wiki\/Seeeduino-XIAO-Expansion-Board\/555.png\" data-original=\"https:\/\/files.seeedstudio.com\/wiki\/Seeeduino-XIAO-Expansion-Board\/555.png\" height=\"900\" width=\"900\" class=\"lazy\"\u003e\u003c\/p\u003e\n\u003ch2\u003e \u003c\/h2\u003e\n\u003ch2\u003ePart List\u003c\/h2\u003e\n\u003ctable style=\"width: 50%; font-size: 12px;\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth class=\"tg-kftd\"\u003eSeeeduino XIAO expansion board\u003c\/th\u003e\n\u003cth class=\"tg-kftd\"\u003eX 1\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003c\/table\u003e\n\n\n\n\n\u003cdiv id=\"detail-target-1\" class=\"detail-label-item\"\u003e\n\u003ch3 class=\"detail-label-title\"\u003e \u003c\/h3\u003e\n\u003cdiv id=\"learn-document-tab\" class=\"detail-item-content data item content\"\u003e\n\u003cdiv class=\"document-content\"\u003e\n\u003ch2\u003eDocumentations\u003c\/h2\u003e\n\u003cdiv class=\"product documents-tab\"\u003e\n\u003cdiv class=\"value documents-info\"\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca rel=\"noopener\" href=\"https:\/\/files.seeedstudio.com\/wiki\/XIAO\/XIAO-Reference-Design.pdf\" target=\"_blank\"\u003eXIAO Reference Design\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca rel=\"noopener\" href=\"https:\/\/files.seeedstudio.com\/wiki\/XIAO\/3D-Printing-Case-Studies.pdf\" target=\"_blank\"\u003e3D Printing \"Case\" Studies\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e"}
