This underwater ultrasonic obstacle avoidance sensor is designed for underwater applications. It operates on a 5-24V wide voltage range, 5-600cm underwater range, and IP68 protection. Compact with minimal blind spots, high precision/protection—it replaces cameras for obstacle avoidance, supports normal underwater navigation speeds, enables unmanned underwater vehicles (no human observation), works at 10m depth, saves space, and integrates easily into projects.

Overview of IP68 Underwater Ultrasonic Obstacle Avoidance Sensor

Downloadable Resources

Dimension

STP Files

Docs

Tech Specs

Projects

1. Example Code for Arduino-Ultrasonic Ranging

Use the underwater ultrasonic obstacle avoidance sensor with Arduino to measure the distance to obstacles underwater and print the result via serial port.

Reference

This article offers a detailed exploration of the UART communication protocol, covering baud rates, data formats, and timing diagrams, providing essential insights into frame data and checksums.

Specification

Parameter	Value
Measurement Range	5-600cm
Measurement Accuracy	±(0.5+S0.5%)cm@＜2m, ±(1+S1%)cm@＞2m
Operating Voltage	5-24V
Standby Current	≤1mA
Operating Current	≤10mA
Output Mode	UART controlled
Power-on Startup Time	≤500ms
Output Response Time	14ms
Angle	8-16°
Operating Temperature	-15~50°C
Storage Temperature	-25~80°C
Storage Humidity	65%~90% RH (non-condensing)

Pinout

Num	Label	Description
Red line	VCC	power supply input positive pole
Black line	GND	power ground wire
Yellow line	RX	UART receiving data line
white line	TX	UART transmitting data line

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