DFRobot
A02YYUW Waterproof Ultrasonic Sensor
A commercial-grade waterproof ultrasonic distance sensor with UART serial output. The A02YYUW features a much smaller blind zone (3 cm) and wider sensing ang...
A commercial-grade waterproof ultrasonic distance sensor with UART serial output. The A02YYUW features a much smaller blind zone (3 cm) and wider sensing angle than many comparable sensors, plus penetration through smog and dust for reliable outdoor use.
The closed separated-probe design is waterproof (IP67) and dustproof, making it well suited to harsh and moist environments. All signal processing is integrated inside the module — connect via UART at 9600 bps and read distance values directly.
Specifications
- Operating Voltage – 3.3–5 V
- Average Current – <8 mA
- Blind Zone – 3 cm
- Detection Range (Flat Object) – 3–450 cm
- Output – UART (9600 bps)
- Response Time – 100 ms
- Sensing Angle – 60°
- Waterproof Grade – IP67
- Operating Temperature – -15 to 60°C
- Storage Temperature – -25 to 80°C
Also Available
- A01NYUB Waterproof Ultrasonic Sensor – longer range (7.5 m with bell-mouth), 28 cm blind zone
Ideal For
- Reversing / parking distance sensors
- Obstacle-avoidance robots
- Close-range object detection (3 cm minimum)
- Outdoor or wet-environment distance measurement
Resources
Package Contents
- 1× A02YYUW Waterproof Ultrasonic Sensor
Jargon buster
Plain-language definitions for the technical terms used above.
- IP67
- An ingress protection rating meaning the enclosure is dust-tight and can survive temporary immersion in water under specified test conditions. This matters when choosing a sensor for outdoor, wet, or wash-down environments.
- UART
- UART is a simple serial connection that sends data over separate transmit and receive wires, often labelled TX and RX. It matters because this module is designed to replace a wired UART cable with a wireless link while keeping the same serial data format.
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Brands
Supplier page — dfrobot.com
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