{"product_id":"chain-dual-key-with-esp32-s3","title":"Chain Dual Key with ESP32-S3","description":"\u003cp\u003e\u003cvideo id=\"video\" playsinline=\"\" muted=\"\" controls=\"controls\" class=\"video-container\" width=\"100%\" style=\"border-radius: 8px; box-shadow: 0 4px 12px rgba(0,0,0,0.08);\"\u003e\n  \u003csource type=\"video\/mp4\" src=\"https:\/\/m5stack-doc.oss-cn-shenzhen.aliyuncs.com\/1176\/C147-Chain-Dualkey-video-EN.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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data-id=\"Description\" id=\"description\"\u003eDescription\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eChain DualKey\u003c\/strong\u003e is a programmable dual-key input development board equipped with the ESP32-S3FN8 main control chip. The front integrates 2 hot-swappable blue switch mechanical keyboard keys and 2 programmable RGB LEDs, providing excellent interactive feedback. It has a built-in 350mAh lithium battery, combining with a low-power design for good battery life. The product comes with pre-installed Chain macro keyboard firmware, supports USB \/ BLE connections, and can emulate HID input devices. After the device is powered on, you can connect to the device's AP hotspot and configure the HID function mapping for the local device or expansion nodes via the built-in web page to achieve various control functions. This development board adopts the M5Stack Chain series expandable design, featuring two HY2.0-4P expansion ports that support lateral expansion and connection to other sensor devices. With the USB-OTG peripheral function built into ESP32-S3, it is suitable for smart home, keyboard peripherals, macro keyboards, and other scenarios.\u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0056\/7689\/2250\/files\/DSC08006.webp?v=1768295426\u0026amp;width=700\"\u003e\u003c\/p\u003e\n\u003ch2 data-id=\"Features\" id=\"features\"\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eESP32-S3FN8 main control chip\u003c\/li\u003e\n\u003cli\u003eBuilt-in 350mAh lithium battery\u003c\/li\u003e\n\u003cli\u003e2 programmable RGB LEDs\u003c\/li\u003e\n\u003cli\u003e2 hot-swappable blue switch keys\u003c\/li\u003e\n\u003cli\u003eM5Stack Chain series expandable design\u003c\/li\u003e\n\u003cli\u003eLEGO-compatible holes on the back\u003c\/li\u003e\n\u003cli\u003eLanyard design\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-id=\"Includes\" id=\"includes\"\u003eIncludes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e1 x Chain DualKey\u003c\/li\u003e\n\u003cli\u003e1 x Keycap Sticker\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg alt=\"\" style=\"width: 70%; height: auto;\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0056\/7689\/2250\/files\/7_46dbb0ca-fb23-482f-887b-64e47f7d8bf1.webp?v=1768295573\u0026amp;width=700\"\u003e\u003c\/p\u003e\n\u003ch2 data-id=\"Applications\" id=\"applications\"\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eSmart home control\u003c\/li\u003e\n\u003cli\u003eMacro keyboard\u003c\/li\u003e\n\u003cli\u003eKeyboard peripherals\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg alt=\"\" style=\"width: 80%; height: auto;\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0056\/7689\/2250\/files\/6_3dfe9db4-a2e8-45bf-b8d4-5c6bdd39fb26.webp?v=1768295592\u0026amp;width=700\"\u003e\u003c\/p\u003e\n\u003ch2 data-id=\"Specifications\" 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\u003eSoC\u003c\/td\u003e\n\u003ctd\u003eESP32-S3FN8 @ Dual-core Xtensa LX7 processor, with a main frequency up to 240MHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlash\u003c\/td\u003e\n\u003ctd\u003e8MB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Input\u003c\/td\u003e\n\u003ctd\u003eUSB: DC 5V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery\u003c\/td\u003e\n\u003ctd\u003e350mAh lithium battery\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRGB LED\u003c\/td\u003e\n\u003ctd\u003e2x WS2812B\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e0 ~ 40°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStandby Current\u003c\/td\u003e\n\u003ctd\u003ePower-off mode (VBAT): DC 4.2V@8.97uA\u003cbr\u003eDeep sleep mode (VBAT): DC 4.2V@107.64uA\u003cbr\u003eUSB 5V power (no battery): DC 5V@41.7mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Size\u003c\/td\u003e\n\u003ctd\u003e47.9 x 34.3 x 23.9mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Weight\u003c\/td\u003e\n\u003ctd\u003e23.7g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackage Size\u003c\/td\u003e\n\u003ctd\u003e63.0 x 72.0 x 28.0mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGross Weight\u003c\/td\u003e\n\u003ctd\u003e39.3g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cimg alt=\"\" style=\"width: 80%; height: auto;\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0056\/7689\/2250\/files\/1920x2260_31187de9-bb04-4324-89a6-4283e1d5dee6.webp?v=1768295611\u0026amp;width=700\"\u003e\n\u003ch2\u003eLearn and Documents\u003c\/h2\u003e\n → DOCUMENTS \n\u003c\/div\u003e","brand":"m5stack-store","offers":[{"title":"Default Title","offer_id":49566412144867,"sku":"xof1787247194067","price":8.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/2961\/4819\/files\/chain-dual-key-with-esp32-s3_1.webp?v=1787247200","url":"https:\/\/regalcladfashion.shop\/products\/chain-dual-key-with-esp32-s3","provider":"My Store","version":"1.0","type":"link"}