A02YYUW Waterproof Ultrasonic Sensor IP67 3–450 cm UART

The A02YYUW Waterproof Ultrasonic Sensor is a high-performance ranging module designed for precise distance measurement in harsh or humid environments. Rated IP67, it provides a detection range of 3–450 cm with a 3 cm blind spot and ±1 cm measurement accuracy. The sensor operates at 3.3–5 V with an average current ≤ 8 mA and features a UART serial interface for straightforward integration. Its 100 ms response time and 60° reference angle make it suitable for applications such as water tank level monitoring, automated plant watering, smart trash bins, and other DIY or embedded projects compatible with Arduino, ESP32, and Raspberry Pi platforms.

• Waterproof Rating: IP67 protection for reliable operation in wet or humid environments.
• Detection Range: Measures distances from 3 cm to 450 cm with ±1 cm accuracy.
• Blind Spot Distance: Minimal 3 cm non-detectable zone for close-range sensing.
• Interface: UART serial output for straightforward communication with microcontrollers.
• Operating Voltage: 3.3–5 V DC with average current ≤ 8 mA.
• Response Time: 100 ms for rapid distance measurement and updates.
• Reference Angle: 60° detection cone for directional sensing applications.
• Compatibility: Integrates with Arduino, ESP32, Raspberry Pi, and ESPHome platforms.

• Sensor Type | A02YYUW Waterproof Ultrasonic Distance Sensor
• Waterproof Rating | IP67
• Detection Range | 3–450 cm
• Blind Spot | 3 cm
• Measurement Accuracy | ±1 cm
• Reference Angle | 60°
• Interface | UART Serial Port
• Operating Voltage | 3.3–5 V DC
• Average Current | ≤ 8 mA
• Response Time | 100 ms
• Operating Temperature | −15 °C to +60 °C
• Compatibility | Arduino, ESP32, Raspberry Pi, ESPHome
• Application | Level measurement, obstacle detection, automated systems
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• 3D model on grabcad.com
• Product Wiki & User Manual
• Timing Diagram
  

• Home Assistant Integration Guide
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