{"product_id":"nm-epd-420","title":"NM-EPD-420 4.2 inch e-Paper ESP32-S3 Development Board WiFi Weather Station Dashboard AHT20 ES8311 Codec","description":"\u003ch2\u003e\u003cspan style=\"color: rgb(0, 148, 148);\"\u003eProduct Features\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003eThe NM-EPD-420 is a fully integrated 4.2 inch tri-color ( B\/W\/R) e-Paper ESP32-S3 development board, specially designed for desktop smart weather dashboard, LoRa Desktop Station. Integrates ESP32-S3, e-ink display, AHT20 temerature and humidity sensor, audio input \u0026amp; output, Lithium battery charging management and multi expansion interfaces into the PCB.\u003c\/p\u003e\n\u003cp\u003eE-Paper only sonsumes power when refreshing screen, keeps static content displayed without power supply, so the board can work for few weeks or few months with a single 3.7V Lithum battery.\u003c\/p\u003e\n\u003cp\u003eThe ESP32-Dashboard support \u003cspan style=\"color: rgb(0, 148, 147);\"\u003e\u003cstrong\u003eweather, timeline, world clock, focus clock, agent and News\u003c\/strong\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0594\/6677\/6658\/files\/promo_01_hero.png?v=1785402846\" alt=\"\"\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan style=\"color: rgb(0, 148, 148);\"\u003eKey Features\u003c\/span\u003e\u003c\/h3\u003e\n\u003ctable width=\"100%\" style=\"width: 100%; height: 313.5px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 35.9341%; height: 19.5938px;\"\u003e \u003cspan style=\"color: rgb(0, 148, 147);\"\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 63.7049%; height: 19.5938px;\"\u003e\u003cspan style=\"color: rgb(0, 148, 148);\"\u003e\u003cstrong\u003eDetails\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 58.7812px;\"\u003e\n\u003ctd style=\"width: 35.9341%; height: 58.7812px;\"\u003e\u003cspan\u003e💬 \u003cstrong\u003e\u003cspan style=\"color: rgb(0, 148, 148);\"\u003eESP32-S3R8\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 63.7049%; height: 58.7812px;\"\u003e240MHz Xtensa LX7, 16MB Flash + 8MB PSRAM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.1875px;\"\u003e\n\u003ctd style=\"width: 35.9341%; height: 39.1875px;\"\u003e\u003cspan\u003e⚙️ \u003cstrong\u003e\u003cspan style=\"color: rgb(0, 148, 148);\"\u003eWiFI 2.4G \u0026amp; BLE 5\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 63.7049%; height: 39.1875px;\"\u003e\u003cspan\u003eAny event can trigger the Agent Loop and more\u003cbr\u003eResponse can be as fast as milliseconds\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.1875px;\"\u003e\n\u003ctd style=\"width: 35.9341%; height: 39.1875px;\"\u003e\u003cspan\u003e🧬 \u003cspan style=\"color: rgb(0, 148, 148);\"\u003e\u003cstrong\u003e4.2-inch E-Paper\u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 63.7049%; height: 39.1875px;\"\u003e\u003cspan\u003eTri-color ( Black \/ White \/ Red)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.1875px;\"\u003e\n\u003ctd style=\"width: 35.9341%; height: 39.1875px;\"\u003e\u003cspan\u003e📤 \u003cspan style=\"color: rgb(0, 148, 148);\"\u003e\u003cstrong\u003eAHT20\u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 63.7049%; height: 39.1875px;\"\u003e\u003cspan\u003etemperature \u0026amp; humidity sensor\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.1875px;\"\u003e\n\u003ctd style=\"width: 35.9341%; height: 39.1875px;\"\u003e\u003cspan\u003e🧰 \u003cstrong\u003e\u003cspan style=\"color: rgb(0, 148, 148);\"\u003eES8311 +DMIC\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 63.7049%; height: 39.1875px;\"\u003e\u003cspan\u003eQAudio codec  + Microphone + 3W 4Ω Speaker\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.1875px;\"\u003e\n\u003ctd style=\"width: 35.9341%; height: 39.1875px;\"\u003e\u003cspan\u003e🧩 \u003cspan style=\"color: rgb(0, 148, 148);\"\u003e\u003cstrong\u003eComplete expansion peripherals\u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 63.7049%; height: 39.1875px;\"\u003e\u003cspan\u003eTF SD Card, USB-C port, Lithium battery Charging, USER keys, Battery Key\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.1875px;\"\u003e\n\u003ctd style=\"width: 35.9341%; height: 39.1875px;\"\u003e\n\u003cdiv\u003e\u003cspan class=\"text-only\"\u003e🛠️ \u003cspan style=\"color: rgb(0, 148, 148);\"\u003e\u003cstrong\u003eLoRa Module (optional)\u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 63.7049%; height: 39.1875px;\"\u003e\n\u003cdiv\u003e\u003cspan class=\"text-only\"\u003eHT-RA62 LoRa module ( SX1262 module)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003e\u003cspan style=\"color: rgb(0, 148, 148);\"\u003eHardware Specifications\u003c\/span\u003e\u003c\/h3\u003e\n\u003ctable width=\"100%\" style=\"width: 99.9647%; height: 156.75px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 35.442%; height: 19.5938px;\"\u003e\u003cspan style=\"color: rgb(0, 148, 148);\"\u003e\u003cstrong\u003eCOMPONENT\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 64.2335%; height: 19.5938px;\"\u003e\u003cspan style=\"color: rgb(0, 148, 147);\"\u003e\u003cstrong\u003eSPECIFICATION \u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 35.442%; height: 19.5938px;\"\u003e\u003cspan style=\"color: rgb(0, 148, 147);\"\u003eMain SoC\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 64.2335%; height: 19.5938px;\"\u003eESP32-S3R8 ( Xtensa LX7 32-bit, 240MHz )\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 35.442%; height: 19.5938px;\"\u003e\u003cspan style=\"color: rgb(0, 148, 148);\"\u003eWireless Protocols\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 64.2335%; height: 19.5938px;\"\u003eWi-Fi 2.4GHz + BLE 5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 35.442%; height: 19.5938px;\"\u003e\u003cspan style=\"color: rgb(0, 148, 148);\"\u003eMemory\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 64.2335%; height: 19.5938px;\"\u003e16MB FLash + 8MB PSRAM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 35.442%; height: 19.5938px;\"\u003e\u003cspan style=\"color: rgb(0, 148, 147);\"\u003eInterface\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 64.2335%; height: 19.5938px;\"\u003eUSB-C, TF Slot, Battery Interface\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 35.442%; height: 19.5938px;\"\u003e\u003cspan style=\"color: rgb(0, 148, 148);\"\u003eOperation Temp\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 64.2335%; height: 19.5938px;\"\u003e-20℃ to 70℃\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 35.442%; height: 19.5938px;\"\u003e\u003cspan style=\"color: rgb(0, 148, 147);\"\u003eCertifications\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 64.2335%; height: 19.5938px;\"\u003eFCC, CE\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\u003cspan style=\"color: rgb(0, 148, 147);\"\u003eNM-EPD-420 Board\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 148, 147);\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0594\/6677\/6658\/files\/nm_epd_420_back_interfaces_no_lora_en.png?v=1785402846\" alt=\"\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe Board with LoRa module ( HT-RA62 ):\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0594\/6677\/6658\/files\/nm_epd_420_back_interfaces_lora_en.png?v=1785402846\" alt=\"\"\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan style=\"color: rgb(0, 148, 147);\"\u003ePackage List\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0594\/6677\/6658\/files\/storyboard_05_contents_layout.png?v=1785402847\" alt=\"\"\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan style=\"color: rgb(0, 148, 147);\"\u003eApplications\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 148, 147);\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0594\/6677\/6658\/files\/storyboard_05_power_on.png?v=1785402847\" alt=\"\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0594\/6677\/6658\/files\/two_devices_office_desk_screen_fidelity_v1.png?v=1785402847\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0594\/6677\/6658\/files\/nm-epd-420-mesh.png?v=1785402847\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"RockBase IoT","offers":[{"title":"灰白","offer_id":42529919795282,"sku":"nm-epd-420","price":29.9,"currency_code":"USD","in_stock":true},{"title":"橙","offer_id":42529919762514,"sku":"nm-epd-420-lora","price":39.9,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0594\/6677\/6658\/files\/promo_01_hero.png?v=1785402846","url":"https:\/\/rockbase.shop\/products\/nm-epd-420","provider":"RockBase IoT","version":"1.0","type":"link"}