ESP32 A02YYUW Waterproof Ultrasonic Distance Sensor

A02YYUW Waterproof Ultrasonic Distance Sensor image

A02YYUW

Protocol: UART

Overview

The A02YYUW is a waterproof ultrasonic distance sensor ideal for outdoor and industrial applications. With a measuring range of up to 4.5 meters and a durable build, it is perfect for detecting objects in harsh conditions. It operates using a UART interface and is compatible with microcontrollers like Arduino and ESP32.

About A02YYUW Waterproof Ultrasonic Distance Sensor

The A02YYUW is a waterproof ultrasonic sensor designed for precise distance measurement in harsh environments. With an IP67-rated enclosure, it is dustproof and waterproof, making it ideal for outdoor and industrial applications.

Key Features

  • Wide Measurement Range – Detects distances from 3 cm to 450 cm.
  • IP67 Waterproof & Dustproof – Built for moist, outdoor, and industrial environments.
  • Reliable UART Communication – Provides stable distance readings via a UART interface.
  • Versatile Applications – Used in liquid level detection, obstacle avoidance, and proximity sensing.

The A02YYUW is a great choice for rugged IoT applications, ensuring reliable performance in challenging conditions. 🚀

Where to Buy

A02YYUW Waterproof Ultrasonic Distance Sensor

Starting from

15.90$ per unit

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Technical Specifications

Measurement Range 3 cm to 450 cm
Resolution 1 mm
Accuracy ±1 cm
Operating Voltage 3.3V to 5V DC
Average Current <8 mA
Response Time 100 ms
Interface UART
Operating Temperature -15°C to 60°C
Waterproof Grade IP67

Pinout Configuration

The VCC pin is used to supply power to the sensor, and it typically requires 3.3V or 5V (refer to the datasheet for specific voltage requirements). The GND pin is the ground connection and must be connected to the ground of your ESP32.

The A02YYUW pinout is as follows:

  • VCC: Connect to a 3.3V to 5V power supply.
  • GND: Ground connection.
  • RX: UART receive pin for communication.
  • TX: UART transmit pin for communication.

Wiring with ESP32

To use the A02YYUW with a microcontroller like an ESP32 or Arduino, connect VCC to a 3.3V or 5V power source, GND to ground, TX to the microcontroller's RX pin, and RX to the microcontroller's TX pin. Ensure that the UART communication parameters are set to 9600 baud rate, 8 data bits, 1 stop bit, and no parity.

Troubleshooting Guide

Common Issues

🔄 Sensor Returns Constant or Erroneous Readings

📉 Inconsistent or Fluctuating Distance Measurements

🚫 Sensor Not Detected or Unresponsive

🌍 Interference from Environmental Factors

Debugging Tips

🔍 Serial Monitor

⚡ Voltage Checks

Code Examples

Arduino Example

C++
🔧

ESP-IDF Example

C++
🏠

ESPHome Example

YAML
🛠️

PlatformIO Example

C++
🐍

MicroPython Example

Python

Conclusion

The ESP32 A02YYUW Waterproof Ultrasonic Distance Sensor is a powerful distance sensor that offers excellent performance and reliability. With support for multiple development platforms including Arduino, ESP-IDF, ESPHome, PlatformIO, and MicroPython, it's a versatile choice for your IoT projects.

For optimal performance, ensure proper wiring and follow the recommended configuration for your chosen development platform.

Always verify power supply requirements and pin connections before powering up your project to avoid potential damage.