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DFRobot URM13 is an ultrasonic ranging sensor with open single-probe. It supports TRIG Pulse-triggered ranging (SR04 compatible), UART, and I2C communication protocols, which brings more possibilities for actual using scenarios. With a small and compact body, the sensor works well with 3.3V or 5V mainboards like Arduino and Raspberry Pi, easy to use and integrate into various applications. Besides, the UART mode employs standard Modbus-RTU protocol and integrates receive/send control output to allow users to easily expand the RS485 interface using an external RS485 transceiver.
The URM13 is positioned to be a professional and advanced ultrasonic sensor. The integration of a new precision circuit design and smart detection algorithms on the sensor makes it much smaller and lighter, while still maintaining excellent sensitivity. At the same time, the URM13 sensor is able to automatically detect ambient and electrical noise, and complete the dynamic adjustment and calibration of sensor parameters in real-time, which ensures its stable performance in various complex application scenarios.
Board Overview
DFRobot Ultrasonic Sensor Selection Guide
| Product Namee | URM37 Ultrasonic Sensor | URM06 Ultrasonic Sensor | URM07-UART Ultrasonic Sensor | URM13 Ultrasonic Sensor | |||
| SKU | SEN0001 | SEN0149 | SEN0150 | SEN0151 | SEN0152 | SEN0153 | SEN0352 |
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| Structure | Open Divided Send and Receive | Open United Send and Receive | Open United Send and Receive | Open United Send and Receive | |||
| IP Grade | NO | NO | NO | NO | |||
| Working Temperature | -10℃～＋70℃ | -10℃～＋70℃ | -10℃～＋70℃ | -10℃～＋70℃ | |||
| Operating Voltage | DC 3.3～5.5V | DC 6～12V | DC 3.3～5.5V | DC 3.3～5.5V | |||
| Acoustics Degree | 60° | 15° | 60° | 60° | |||
| Acoustics Frequency | 40KHZ | 50KHZ | 40KHZ | 40KHZ | |||
| Range | 2cm～800cm | 20cm～1000cm | 20cm～750cm | 15cm～900cm | |||
| Resolution | 1cm | 1cm | 1cm | 1cm | |||
| Deviation | 1% | 1% | 1% | 1% | |||
| Sensitivity Level | 5 | 5 | 3 | 6 | |||
| Communication Interface | RS232/UART/ANALOG | RS485 | UART | PULSE | ANALOG | UART | UART/PULSE/I2C |
| Features |
Multi-interface integration;
Automatic gain adjustment;
Automatic control of ranging;
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Corrosion-resistant PVC housing;
Screw-free wiring port;
Narrow beam class linear directional detection;
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Ultra-low power consumption;
Small, streamlined design;
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The small and compact body;
Excellent sensitivity;
Noise detection;
Real-time calibration;
HC-SR04 compatible;
Support to expand RS485;
ModBus-RTU;
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| Applications |
Education robot omnidirectional obstacle ranging;
Underground parking space monitoring;
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High-voltage line-to-ground barrier avoidance;
Narrow space obstacle detection;
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Aircraft height;
Indoor IoT Devices;
Line product counting;
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Aircraft height;
Indoor IoT Devices;
Line product counting;
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| Product Name | URM08-RS485 Ultrasonic Sensor | URM14-RS485 Ultrasonic Sensor | URM09 Ultrasonic Sensor | URM12 Ultrasonic Sensor | ||
| SKU | SEN0246 | SEN0358 | SEN0304 | SEN0307 | SEN0388 | SEN0310 |
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| Structure | Closed United Send and Receive | Closed United Send and Receive | Open Divided Send and Receive | Closed United Send and Receive | ||
| IP Grade | IP65 | IP65 | NO | IP65 | ||
| Working Temperature | -10℃～＋70℃ | -10℃～＋70℃ | -10℃～＋70℃ | -10℃～＋70℃ | ||
| Operating Voltage | DC 6～12V | DC 7～15V | DC 3.3～5.5V | DC 9～24V | ||
| Acoustics Degree | 60° | 12° | 60° | 15° | ||
| Acoustics Frequency | 40KHZ | 200KHZ | 40KHZ | 40KHZ | ||
| Range | 35cm～550cm | 10cm～150cm | 2cm～500cm | 70cm～1500cm | ||
| Resolution | 1cm | 0.1mm | 1cm | 1cm | ||
| Deviation | 1% | 0.1% | 1% | 1% | ||
| Sensitivity Level | 6 | 5 | 4 | 6 | ||
| Communication Interface | RS485 | RS485 | I2C | ANALOG | PULSE | RS485 |
| Features |
High sensitivity large area detection;
Full structure shielding;
Real-time calibration over the operating temperature range;
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High precision;
Full structure shielding;
Noise detection;
Real-time calibration;
ModBus-RTU;
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High speed measurement;
Configurable detection range;
Professional parameter configuration;
Support cascading;
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Analog voltage output;
Plug and play;
Automatic measurement;
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HC-SR04 compatible;
Single signal line design;
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Large reliable detection range;
All-round protection design;
Corrosion-resistant and anti-pollution ABS materials;
Narrow beam linear directional detection;
ModBus-RTU;
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| Applications |
Collision prevention of industrial transport facilities;
Unattended guards;
Anti-theft alert;
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Micro deformation detection;
Product defect measurement;
Wind speed measurement;
Non-contact switch;
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Robotics education;
Indoor robot assisted barrier avoidance;
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Robotics education;
Indoor robot assisted barrier avoidance;
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Robotics education;
Indoor robot assisted barrier avoidance;
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River water level detection;
Chemical tank level detection;
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