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DFRobot URM04 Ultrasonic Distance Sensor – RS485, 4-500cm

SKU:

25-00010222

Part Number: SEN0002

CompanyDFRobot Part NumberSEN0002

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€14⁹⁰

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Description
Specifications

The URM04 Ultrasonic sensor is developed based on our popular URM37 ultrasonic sensor, it is using RS485 interface which allows multiple sensors to be used simultaneously. The RS485 interface allows a number of sensors to work together. Up to 32 URM04 may be connected together in a network.

The ultrasonic sensor allows you to determine the exact distance of an obstacle in the sonar field of view. The cleverness of your robot will depend on a sensitive sensor similar to the one bats use to know their position and track prey. With advanced programming, you can design compensators in order to perfectly control your motors according to the obstacle's distance.

Note: This sensor requires an RS485 interface. It cannot be connected directly to an Arduino. To make the connection easier we recommend using DFRobot Arduino RS485 Shield.

What is the URM series?

The URM series is a range of ultrasonic distance measurement modules specifically designed for industrial control and robot control applications. These modules are equipped with internal temperature compensation functionality, allowing for accurate measurement of the distance between the sensor and the target object. They can be widely used in various scenarios, such as robot barrier navigation, liquid level detection, and obstacle avoidance designs.

Since the introduction of the first URM module in 2009, DFRobot has continuously released many models of the URM series of ultrasonic distance measurement modules. These modules cover a wide range of measurement distances, beam angles, accuracy levels, and interface options, catering to the requirements of different application scenarios.

Technical data

Operating Voltage: +5V
Current: <20mA
Operating Temperature: -10℃ – +70℃
Detecting range: 4cm–500cm
Resolution: 1cm
Frequency: 40kHz
Interface: RS485
Temperature sensor: 12 bits reading from serial port
Default Device Address: 0x11
Default Device baudrate: 19200
Size: 34mm×51mm
Weight: 30g

Package contents

URM04 v2.0 Ultrasonic Sensor ×1
Wire with 4p JST connector ×1

DFRobot Industrial URM sensors - Comparison table

Model	DFRobot URM04 Ultrasonic Distance Sensor – RS485, 4-500cm	DFRobot URM06 Narrow Beam Ultrasonic Distance Sensor – RS485, 20cm-10m	DFRobot URM06 Narrow Beam Ultrasonic Distance Sensor – UART, 20cm-10m	DFRobot URM06 Narrow Beam Ultrasonic Distance Sensor – Pulse, 20cm-10m	DFRobot URM06 Narrow Beam Ultrasonic Distance Sensor – Analog, 20cm-10m	DFRobot URM08 Ultrasonic Distance Sensor – RS485, 35-550cm	DFRobot URM12 Long Range Ultrasonic Distance Sensor – RS485, 70cm-15m	DFRobot URM14 Ultrasonic Distance Sensor with 1mm Accuracy – RS485, 10-150cm	DFRobot URM15 Ultrasonic Distance Sensor – RS485, 30-500cm
GRobotronics SKU	25-00010222	25-00010149	25-00010150	25-00010151	25-00010152	25-00010246	25-00010310	25-00016360	25-00012519
IP Grade	Without protection	Without protection	Without protection	Without protection	Without protection	IP65	IP65	IP65	IP65
Operating Voltage	5V DC	6V–12V DC	6V–12V DC	6V–12V DC	6V–12V DC	6V–12V DC	9V–24V DC	7V–15V DC	5V–12V DC
Beam Angle	60°	15°	15°	15°	15°	60°	15°	12°	15°
Acoustics Frequency	40kHz	50kHz	50kHz	50kHz	50kHz	40kHz	40kHz	200kHz	75kHz
Range	4cm–500cm	20cm–1000cm	20cm–1000cm	20cm–1000cm	20cm–1000cm	35cm–550cm	70cm–1500cm	10cm–150cm	30cm–500cm
Resolution	1cm	1cm	1cm	1cm	1cm	1cm	1cm	0.1mm	1cm
Communication Interface	RS485	RS485	UART	Pulse	Analog	RS485	RS485	RS485	RS485