This ultrasonic obstacle avoidance sensor is for robot automation control. It solves common issues (large blind zones, wide angles, long response) with 5m range, small blind zones, narrow angles, short response, same-frequency interference filtering, compact size, dust/waterproof, high reliability. Using innovative tech, it filters foreign ultrasound for stable data. It has RS485 output, compatible with Arduino DFR0259. Applications: robot obstacle avoidance, parking, access control, etc.

Overview of Ultrasonic Distance Ranging Obstacle Avoidance Sensor

Downloadable Resources

Dimension

Docs

Tech Specs

1. Example Code for Arduino-Ultrasonic Ranging

This project demonstrates how to use the Ultrasonic Ranging Sensor (5m) with Arduino to read real-time distance values. Users will learn how to communicate with the sensor via RS485 using the Modbus protocol and display the distance on the serial monitor.

Reference

This article offers a detailed exploration of Modbus communication protocols, covering key parameters, protocol formats, and register tables with examples to aid understanding.

Specification

Parameter	Value
Measurement range	3-500cm
Measurement accuracy	1 + (S * 0.3%) cm
Operating voltage	3.3-24V
Operating current	≤10mA
Communication method	RS485
Output response time	15-750ms
Power-on delay operating time	≤1000ms
Dual angles	horizontal 40-65°, vertical 60-80°
Operating temperature	-25°C~ 65°C
Operating humidity	65% ~ 80%RH
Storage temperature	-30°C ~ 80°C
Storage humidity	65% ~ 90%RH

Pinout

Num	Label	Description
Red line	VCC	power supply input positive pole
Black line	GND	power ground wire
Yellow line	B	RS485 B line
white line	A	RS485 A line

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