{"product_id":"dfrobot-a02yyuw-waterproof-ultrasonic-sensor-uart","title":"DFRobot A02YYUW Waterproof Ultrasonic Sensor | UART 3-450cm","description":"\u003ch2 class=\"ng-star-inserted\"\u003e\u003cspan class=\"ng-star-inserted\"\u003eThe Ultimate IP67 Distance Sensor for Harsh Environments\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"ng-star-inserted\"\u003e\u003cspan class=\"ng-star-inserted\"\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cstrong class=\"ng-star-inserted\"\u003e\u003cspan class=\"ng-star-inserted\"\u003eDFRobot A02YYUW Waterproof Ultrasonic Sensor\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"ng-star-inserted\"\u003e\u003cspan\u003e \u003c\/span\u003eprovides highly stable and accurate distance measurements in environments where standard exposed sensors fail. Standard ultrasonic modules like the HC-SR04 quickly short-circuit in high humidity or dusty conditions. By utilizing a fully sealed, integrated IP67 waterproof body, the A02YYUW sensor withstands dust, splashes, and temporary submersion, making it the perfect choice for outdoor proximity detection and continuous liquid level monitoring in water tanks.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 class=\"ng-star-inserted\"\u003e\u003cspan class=\"ng-star-inserted\"\u003eOvercome the 3cm Ultra-Small Blind Spot Limitation\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"ng-star-inserted\"\u003e\u003cspan class=\"ng-star-inserted\"\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cstrong class=\"ng-star-inserted\"\u003e\u003cspan class=\"ng-star-inserted\"\u003eDFRobot A02YYUW Ultrasonic Sensor\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"ng-star-inserted\"\u003e\u003cspan\u003e \u003c\/span\u003esolves the massive dead-zone problem found in older waterproof modules by offering an industry-leading 3cm blind spot. Competing split-design sensors, such as the JSN-SR04T, suffer from a 20cm blind spot, making it impossible to detect when a water tank is nearly full. With the A02YYUW, you get precise 1mm resolution readings right up to the top of the container, preventing overflows and ensuring precise control in automated systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 class=\"ng-star-inserted\"\u003e\u003cspan class=\"ng-star-inserted\"\u003eNative ESPHome \u0026amp; Home Assistant Integration\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"ng-star-inserted\"\u003e\u003cspan class=\"ng-star-inserted\"\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cstrong class=\"ng-star-inserted\"\u003e\u003cspan class=\"ng-star-inserted\"\u003eDFRobot A02YYUW UART Ultrasonic Sensor\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"ng-star-inserted\"\u003e\u003cspan\u003e \u003c\/span\u003eeliminates the need for complex C++ coding by offering native platform support in ESPHome. Because this specific UART version is officially supported by the ESPHome component, DIY smart home enthusiasts can easily pull real-time water level metrics directly into their Home Assistant dashboards. Simply pair it with a low-power IoT board like the FireBeetle 2 ESP32-C6, and your custom sump pump monitor will be up and running in minutes.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 class=\"ng-star-inserted\"\u003e\u003cspan class=\"ng-star-inserted\"\u003e💡 Pro Tip from Our Technicians\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"ng-star-inserted\"\u003e\u003cspan class=\"ng-star-inserted\"\u003e\"When integrating the\u003cspan\u003e \u003c\/span\u003e\u003cstrong class=\"ng-star-inserted\"\u003eDFRobot A02YYUW Waterproof Ultrasonic Sensor\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003einto Home Assistant, you might notice the raw data fluctuates slightly! Because the UART bus outputs data multiple times per second, we highly recommend applying Sensor Filters (such as\u003cspan\u003e \u003c\/span\u003e\u003cspan class=\"inline-code ng-star-inserted\"\u003esliding_window_moving_average\u003c\/span\u003e) in your ESPHome YAML configuration to smooth out the readings. Also, ensure the sensor is mounted perfectly perpendicular to the water surface for the best acoustic reflection. If you are building a DIY rain barrel tracker and need help with your ESP32 wiring or ESPHome code, drop by our Sham Shui Po store! Our team at 新昌電腦有限公司 (Sun Cheong Computer Co. Ltd.) loves helping makers debug their smart home circuits.\"\u003c\/span\u003e\u003c\/p\u003e","brand":"DFRobot","offers":[{"title":"Default Title","offer_id":48019571212439,"sku":"21PS002310","price":709.0,"currency_code":"TWD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0440\/4022\/4919\/files\/1_01a62bb0-05c5-4446-8920-579548dc7e6d.jpg?v=1784106620","url":"https:\/\/scccltd.com\/en-tw\/products\/dfrobot-a02yyuw-waterproof-ultrasonic-sensor-uart","provider":"Sun Cheong Computer Company Limited","version":"1.0","type":"link"}