{"product_id":"miniature-ultrasonic-distance-ranging-obstacle-avoidance-sensor-3m-rs485-ip67","title":"Miniature Ultrasonic Distance Ranging Obstacle Avoidance Sensor (3m, RS485, IP67)","description":"\u003ch2\u003eIntroduction\u003c\/h2\u003e\n\u003cp\u003eDFRobot RS485 Ultrasonic Distance Ranging Sensor (3m) delivers stable, long‑range distance detection for robotics and industrial automation environments. Featuring a measuring range up to 3 meters and a compact waterproof enclosure, this distance ranging sensor combines narrow detection angles, minimal blind zones, and reliable digital communication through an RS485 interface. Advanced ultrasonic processing enables accurate detection even in noisy environments where multiple sensors operate simultaneously. Designed for automation systems and intelligent machines, this ultrasonic ranging module provides dependable proximity measurement for robotics navigation, access control systems, and smart infrastructure installations.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eLong-Range Precision with Minimal Blind Zone\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eThis ultrasonic measurement module supports a detection range from 2 cm to 300 cm with a measurement accuracy of 1 + (S × 0.3%) cm. A narrow sensing angle of 30–60° allows more focused detection compared with typical ultrasonic units, improving obstacle discrimination in confined environments. Fast response timing from 15 ms to 750 ms enables timely feedback for automation systems and mobile robotics. Compact mechanical design further simplifies installation in tight equipment housings or embedded robotic platforms.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E39032-content1.webp?v=1791668432\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003eFigure: Wiring Diagram of RS485 Ultrasonic Distance Ranging Sensor and Arduino TTL to RS485 Expansion Board\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eRS485 Industrial Communication Interface\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eAn integrated RS485 communication interface enables stable long‑distance data transmission and strong resistance to electrical noise, making this industrial ultrasonic detector suitable for automation equipment and distributed sensing networks. Sensor data can be conveniently accessed through controllers paired with an Arduino-compatible TTL to RS485 expansion board. Such connectivity simplifies integration into robotics control systems, smart parking infrastructure, and intelligent building monitoring platforms.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eAdvanced Ultrasonic Processing and Robust Protection\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eInnovative ultrasonic signal processing technology identifies and filters foreign ultrasonic interference, improving stability when multiple ultrasonic devices operate in the same environment. Reduced same‑frequency interference ensures reliable distance data for complex automation scenarios. An IP67-rated enclosure protects internal electronics against dust and water ingress, allowing dependable operation in outdoor deployments, industrial workshops, and harsh robotics environments where durability and long service life remain critical.\u003c\/p\u003e\n\u003cp\u003eThis RS485-based ultrasonic sensing unit supports a wide variety of automation and robotics applications including mobile robot obstacle avoidance, automated gate monitoring, parking management infrastructure, and presence detection systems. Reliable ranging capability, compact design, and industrial communication compatibility make this sensing module a practical component for robotic control systems, smart facility management, and intelligent security detection solutions.\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eCompact size and small blind zone\u003c\/li\u003e\n\u003cli\u003eLightweight structure with fast response time\u003c\/li\u003e\n\u003cli\u003eIP67 waterproof and dustproof protection\u003c\/li\u003e\n\u003cli\u003eIntelligent ultrasonic processing technology for reduced interference\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eRobot obstacle avoidance\u003c\/li\u003e\n\u003cli\u003eAutomatic control systems\u003c\/li\u003e\n\u003cli\u003eParking management systems\u003c\/li\u003e\n\u003cli\u003eSecurity gate detection\u003c\/li\u003e\n\u003cli\u003eAccess control systems\u003c\/li\u003e\n\u003cli\u003eObject proximity and presence detection\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecification\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eMeasurement range: 2-300cm\u003c\/li\u003e\n\u003cli\u003eMeasurement accuracy: 1 + (S * 0.3%) cm\u003c\/li\u003e\n\u003cli\u003eOperating voltage: 3.3-12V\u003c\/li\u003e\n\u003cli\u003eOperating current: ≤10mA\u003c\/li\u003e\n\u003cli\u003eCommunication method: RS485\u003c\/li\u003e\n\u003cli\u003eOutput response time: 15-750ms\u003c\/li\u003e\n\u003cli\u003ePower-on delay operating time: ≤1000ms\u003c\/li\u003e\n\u003cli\u003eDetection angle: 30-60°\u003c\/li\u003e\n\u003cli\u003eOperating temperature: -25°C~ 65°C\u003c\/li\u003e\n\u003cli\u003eOperating humidity: 65% ~ 80%RH\u003c\/li\u003e\n\u003cli\u003eStorage temperature: -30°C ~ 80°C\u003c\/li\u003e\n\u003cli\u003eStorage humidity: 65% ~ 90%RH\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eShipping List\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eUltrasonic Ranging Sensor (3m) x1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eDocuments\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/wiki.dfrobot.com\/sen0591\/\" target=\"_blank\"\u003eProduct Wiki\u003c\/a\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cfooter\u003e\u003c\/footer\u003e","brand":"DFRobot","offers":[{"title":"Default Title","offer_id":67648215875661,"sku":"E39032-001","price":42.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E39032-win1.jpg?v=1791668626","url":"https:\/\/www.mlab.com.au\/products\/miniature-ultrasonic-distance-ranging-obstacle-avoidance-sensor-3m-rs485-ip67","provider":"MLAB","version":"1.0","type":"link"}