Product description: Ultrasonic distance sensor 3 - 500 cm - RS4585 - waterproof - DFRobot SEN0592
The DFRobot ultrasonic sensor enables precise distance measurement in the range of 3 cm to 500 cm , with an accuracy of 1 + (S × 0.3%) cm . It communicates via a digital RS485 interface (Modbus-RTU protocol) , which allows easy integration with automation systems and microcontrollers such as Arduino. The distance sensor is characterized by a fast response time of 15 to 750 ms , a compact design and high environmental resistance (IP67) , making it suitable for use in difficult outdoor conditions. Advanced ultrasound processing technology ensures effective filtering of interference from other ultrasound sources, guaranteeing measurement stability even in environments with high signal intensity.
Ultrasonic distance sensor 3 - 500 cm - RS4585 - waterproof - DFRobot SEN0592.
The ultrasonic sensor detects obstacles within a radius of up to 5 m.
Main features of the sensor
- Measuring range from 3 cm to 5 m : allows detection of both near and distant obstacles
- Accuracy 1 + 0.3% x distance : precise readings
- Fast response time from 15ms to 750ms : dynamic applications in motion
- Horizontal detection angle from 40° to 65° and vertical from 60° to 80° : narrows the measurement zone
- Environmental resistance IP67 : protected against dust and flooding
- RS485 communication with Modbus‑RTU protocol : easy industrial integration
- Ultrasound filtration to minimize interference : stable operation in harsh environments
Sensor leads and connections
The sensor has four pins: red line (VCC) , black (GND) , yellow (RS485 line B) and white (RS485 line A) . The recommended connection is to use Arduino and a TTL to RS485 converter (e.g. DFR0259 ), which amplifies the signal and ensures compatibility of the interfaces. Before starting the sensor, switch the converter to "AUTO" mode for programming, and then - to the operating mode ("RUN") at a standard speed of 115200 bps. This type of configuration allows for fast and reliable data processing in robotics and automation applications.
Sensor connection diagram.
The sensor can identify and filter foreign ultrasound, resulting in more stable and reliable data output.
Practical applications
- Mobile robots and AGVs
- Industrial automation
- Parking and gate systems
- Access control and security
- Space monitoring
Technical specifications of the distance sensor
- Measurement range: 3 cm to 500 cm
- Accuracy: 1 + (S x 0.3%) cm
- Supply voltage: 3.3 V to 24 V
- Working current: ≤ 10 mA
- Communication interface: RS485 (Modbus‑RTU)
- Response time: 15ms to 750ms
- Power-on delay: ≤ 1000 ms
- Detection angles: horizontal from 40° to 65°, vertical from 60° to 80°
- Operating temperature: -25 °C to 65 °C
- Operating humidity: 65% RH to 80% RH
- Protection class: IP67
- Dimensions: 51.5 x 26.5 x 27 mm
Kit Contents
- 1x Ultrasonic Distance Sensor
The IP67 protection class and RS485 output make the sensor suitable for a variety of applications.
