{"product_id":"unit-chainbus-stm32g031","title":"Unit ChainBUS (STM32G031)","description":"\u003cp\u003e\u003cvideo style=\"border-radius: 8px; box-shadow: 0 4px 12px rgba(0,0,0,0.08);\" width=\"100%\" class=\"video-container\" controls=\"controls\" muted=\"\" playsinline=\"\" id=\"video\"\u003e\n  \u003csource src=\"https:\/\/m5stack-doc.oss-cn-shenzhen.aliyuncs.com\/1201\/U212-Unit-ChainBus-video-EN.mp4\" type=\"video\/mp4\"\u003e\u003c\/video\u003e\u003c\/p\u003e\n\u003cstyle\u003e\n\/* ===== Scoped Description Style ===== *\/\n.product-description.rte {\n  font-family: -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, \"Helvetica Neue\", Arial, sans-serif;\n  color: #2c2c2c;\n  line-height: 1.65;\n  font-size: 16px;\n}\n\n\/* ===== Headings ===== *\/\n.product-description.rte h2 {\n  font-size: 1.8em;\n  color: #0D47A1;\n  border-left: 4px solid #1f6fe5;\n  padding-left: 12px;\n  margin-top: 32px;\n  margin-bottom: 16px;\n}\n\n\/* ===== H3 Titles Optimization ===== 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id=\"description\" data-id=\"Description\"\u003eDescription\u003c\/h2\u003e\n\u003cp\u003eUnit ChainBus is a Chain series communication protocol conversion unit. It integrates an STM32G031G8U6 chip and uses a UART daisy-chain communication protocol to enable \u003cstrong\u003echained connections\u003c\/strong\u003e of multiple devices. It supports multiple protocol interface conversions, allowing various peripherals to be expanded on the same bus, and integrates hardware control and data interaction capabilities.\u003c\/p\u003e\n\u003cp\u003eThe UART interfaces on the left and right sides are used to connect Chain series devices, supporting device UID query, version query, link device enumeration, heartbeat communication, and more. The top multifunction expansion interface can be used to extend Unit series devices, supporting I2C communication control, GPIO management (input and output), ADC sampling, and NVIC interrupt management. It is suitable for industrial control, IoT, smart home, and other application scenarios, providing an effective solution for unified control and data interaction of multiple devices.\u003c\/p\u003e\n\u003ch2 id=\"features\" data-id=\"Features\"\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eSTM32G031G8U6 core controller\u003c\/li\u003e\n\u003cli\u003eUART daisy-chain communication protocol, supporting single \/ multiple Chain series devices in a chained connection\u003c\/li\u003e\n\u003cli\u003e1 x RGB LED for status indication\u003c\/li\u003e\n\u003cli\u003e1 x HY2.0-4P multifunction expansion interface for extending Unit series devices\u003c\/li\u003e\n\u003cli\u003e2 x HY2.0-4P UART interfaces for extending Chain series devices\u003c\/li\u003e\n\u003cli\u003eDevelopment Platform\n\u003cul\u003e\n\u003cli\u003eUiFlow2\u003c\/li\u003e\n\u003cli\u003eArduino\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 id=\"includes\" data-id=\"Includes\"\u003eIncludes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e1 x Unit ChainBus\u003c\/li\u003e\n\u003cli\u003e2 x HY2.0-4P Grove Cable (5cm)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 id=\"applications\" data-id=\"Applications\"\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eChain bus device expansion\u003c\/li\u003e\n\u003cli\u003eIndustrial control\u003c\/li\u003e\n\u003cli\u003eIoT\u003c\/li\u003e\n\u003cli\u003eSmart home\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg alt=\"Unit ChainBus\" style=\"width: 80%; height: auto;\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0056\/7689\/2250\/files\/6_6c2d343b-9ff3-437a-96bb-b875bb06c576.webp?v=1768362905\u0026amp;width=700\"\u003e\u003c\/p\u003e\n\u003ch2 id=\"specifications\" data-id=\"Specifications\"\u003eSpecifications\u003c\/h2\u003e\n\u003cdiv class=\"table-container\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMCU\u003c\/td\u003e\n\u003ctd\u003eSTM32G031G8U6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInterface\u003c\/td\u003e\n\u003ctd\u003e2 x HY2.0-4P UART Interfaces, 1 x HY2.0-4P Multifunction Expansion Interface\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRGB LED\u003c\/td\u003e\n\u003ctd\u003e1 x WS2812\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication\u003c\/td\u003e\n\u003ctd\u003eUART 115200bps @ 8N1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChain Protocol\u003c\/td\u003e\n\u003ctd\u003eChain Bus UART daisy-chain communication protocol\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChain Features\u003c\/td\u003e\n\u003ctd\u003eDevice UID query, version query, link device enumeration, heartbeat, etc.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExpansion I\/O\u003c\/td\u003e\n\u003ctd\u003eI2C communication control, GPIO management (including interrupt configuration and status query), ADC sampling, NVIC interrupt management\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eRGB white light max brightness 3.3V@17.72mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Size\u003c\/td\u003e\n\u003ctd\u003e29.8 x 24.0 x 8.0mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Weight\u003c\/td\u003e\n\u003ctd\u003e5.9g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackage Size\u003c\/td\u003e\n\u003ctd\u003e138.0 x 93.0 x 10.0mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGross Weight\u003c\/td\u003e\n\u003ctd\u003e13.3g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cimg alt=\"Unit ChainBus\" style=\"width: 80%; height: auto;\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0056\/7689\/2250\/files\/1920x2260_0a44ff26-6156-4e91-aa78-f02cb8c9511b.webp?v=1768362925\u0026amp;width=700\"\u003e\n\u003ch2 id=\"learn\" data-id=\"Learn\"\u003eOperating Instructions\u003c\/h2\u003e\n\u003cdiv style=\"background: #f3f8ff; border: 1px solid #cfe1ff; border-left: 4px solid #1f6fe5; border-radius: 8px; padding: 14px 16px; margin: 24px 0;\"\u003e\n\u003cp\u003eThe left and right HY2.0-4P interfaces of Unit ChainBus are used for Chain Bus input and output respectively, while the top expansion connector is used to connect Unit series devices.\u003c\/p\u003e\n\u003cp\u003eUnit ChainBus adopts the same UART daisy-chain protocol as other Chain series expansion devices (such as Chain Angle, Chain Encoder, etc.). It can serve as a custom functional node and be connected to the Chain Bus. Multiple Unit ChainBus devices can be expanded on the same bus. Through interface function configuration, different types of hardware peripheral controls can also be integrated on the same bus.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/m5stack-doc.oss-cn-shenzhen.aliyuncs.com\/1201\/U212_operate_01.jpg?width=700\" width=\"70%\"\u003e\u003c\/p\u003e\n\u003ch2\u003eLearn and Documents\u003c\/h2\u003e\n\u003cp\u003e → DOCUMENTS \u003c\/p\u003e\n\u003c\/div\u003e","brand":"m5stack-store","offers":[{"title":"Default Title","offer_id":49566412669155,"sku":"xqh1787247201122","price":2.93,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/2961\/4819\/files\/unit-chainbus-stm32g031_1.webp?v=1787247207","url":"https:\/\/regalcladfashion.shop\/products\/unit-chainbus-stm32g031","provider":"My Store","version":"1.0","type":"link"}