A number of sensors for measuring distances using infrared light or a laser beam is provided ultrasonic distance sensorsthat are used in various automated applications. Their task is the detection of objects and measuring distance to them. Ultrasonic sensors are used for the operation of the ultrasound, i.e. sound with frequencies that exceed the theoretical range audible to the human ear (i.e., above 20 kHz).
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USB Serial Light Adapter - USB-UART converter with miniUSB connector
Index: DFR-05064
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Ultrasonic distance sensors
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Ultrasonic distance sensor HC-SR04 2-200cm - justPi
Ultrasonic sensor operating in the range from 2 cm to 200 cm. It is powered with voltage of 5 V. The output is a signal whose duration is proportional to the measured distance.
Index: MOD-01420
Index: MOD-01420
Ultrasonic distance sensor HC-SR04 2-200cm + mounting bracket
Ultrasonic sensor operating in the range from 2 cm to 200 cm with special bracket for mounting. It is powered with the voltage of 5 V. The output is a signal whose duration is...
Index: MOD-05686
Index: MOD-05686
A02YYUW ultrasonic distance sensor 3-450cm - waterproof - DFRobot SEN0311
Ultrasonic distance sensor measuring the distance by measuring the time between sending and receiving a pulse. The sensor allows to measure distances from 3 cm to 450 cm . It...
Index: DFR-15717
Index: DFR-15717
Waterproof Ultrasonic distance sensor JSN-SR04T 20-450cm
Waterproof ultrasonic sensor operating in the range from 20 cm to 450 cm. It is powered with voltage of 5 V. The output is a signal whose duration is proportional to the...
Index: MOD-07266
Index: MOD-07266
Grove - ultrasonic distance sensor 3-350cm
Ultrasonic sensor operating in the range from 3 cm to 350 cm. It is powered with voltage of 5 V. The output is a signal, duration of which is proportional to the measured...
Index: SEE-11360
Index: SEE-11360
Mounting bracket for distance sensor HC-SR04 - red
Bracket for installation the distance sensor HC-SR04. It is made of red acrylic with 3 mm of thickness, it has three holes for mounting.
Index: MOD-09712
Index: MOD-09712
Mounting bracket for distance sensor HC-SR04 - blue
Bracket for installation the distance sensor HC-SR04. It is made of blue acrylic with 3 mm of thickness, it has three holes for mounting.
Index: MOD-09416
Index: MOD-09416
ME007YS ultrasonic distance sensor 28-450cm - waterproof - DFRobot SEN0312
A distance sensor that measures by calculating the time between sending and receiving a pulse. ME007YS measures the distance in the range from 28 to 450 cm and communicates...
Index: DFR-15715
Index: DFR-15715
A set of ultrasonic sensors, round, with a diameter of 16 mm.
Index: SES-01209
Index: SES-01209
Ultrasonic distance sensor 2-400cm - HY-SRF05
Ultrasonic sensor operating in the range from 2 cm to 400 cm. It is powered with voltage of 5 V. The output is a signal, duration of which is proportional to the measured...
Index: OST-14329
Index: OST-14329
A01NYUB ultrasonic distance sensor 28-750cm - waterproof - DFRobot SEN0313
An ultrasonic sensor that measures by calculating the time between sending and receiving a pulse. The sensor can measure distances from 28 cm to 750 cm . It communicates...
Index: DFR-15716
Index: DFR-15716
Mounting bracket for distance sensor HC-SR04
Mounting bracket for HC-SR04 distance sensor. Made of transparent acrylic with a thickness of 2.6 mm, it has two mounting holes with a diameter of 3.5 mm.
Index: MOD-04822
Index: MOD-04822
Gravity URM09 - ultrasonic distance sensor 2-500cm sensor analog - DFRobot SEN0307
Module with ultrasonic distance sensor URM09, with measuring range from 2 cm to 500 cm. Supply voltage is 3.3 V to 5.5 V. The measuring frequency can reach up to 30 Hz. It...
Index: DFR-14859
Index: DFR-14859
Ultrasonic distance sensor URM37 v5 2-800cm with temperature correction
Ultrasonic sensor from DFRobot operating in the range from 2 cm to 800 cm. It is powered with the voltage from 3.3 V to 5,5 V. Communication is via serial interface UART (RX,...
Index: DFR-03413
Index: DFR-03413
Velleman WPSE306N ultrasonic distance sensor 3-550cm
Ultrasonic sensor operating in the range from 3 cm to 550 cm. It is powered with the voltage from 3,3 V to 5 VDC. The output is a signal whose duration is proportional to the...
Index: VEL-13022
Index: VEL-13022
DFRobot Gravity URM09 - ultrasonic distance sensor 2-500cm and temperature sensor I2C
Module with ultrasonic sensor URM09 and three measurement ranges to choose from 2 to 150 / 300 / 500 cm. It also allows for a temperature measurement. Supply voltage is from...
Index: DFR-14048
Index: DFR-14048
Parking sensors kit - Blow CPW4 - black
Kit of ultrasonic parking sensors. It helps reverse driving by warning about obstacles using sound. The detection of the obstacle ranges 0-2.5 m. Sensor hole diameter equals 19...
Index: MOT-06056
Index: MOT-06056
Ultrasonic distance sensor HC-SR04 2-400cm - SparkFun SLEEP-15569
Ultrasonic sensor with an operating range from 20 mm to 4000 mm , with a tolerance of 3 mm. The module consists of a transmitter, a receiver and a control circuit and is...
Index: SPF-16257
Index: SPF-16257
Gravity - TRIG URM09 ultrasonic distance sensor - DFRobot SEN0388
Ultrasonic distance measuring module produced by DFRobot with integrated URM09 chip. It detects objects at a distance from 2 cm to 500 cm . The distance is determined...
Index: DFR-19194
Index: DFR-19194
DFRobot - kit for ultrasonic scanner 120°/400cm - URM37 sensor + servo
Kit for self-assembly enabling the addition of ultrasonic scanner function to robot. The sensor is able to scan an area of 120 ° in the range from 10 cm to 400 cm. It consists...
Index: DFR-07683
Index: DFR-07683
Maxbotix XL - MaxSonar AE0 - ultrasonic distance sensor MB1300 - Pololu 1660
Ultrasonic sensor operating in the range from 0 to 765 cm. It operates with a supply voltage from 3.3 V to 5 V. Output is the signal, the duration of which is proportional to...
Index: PLL-11114
Index: PLL-11114
Maxbotix XL - MaxSonar AE3 - ultrasonic distance sensor MB1330 - Pololu 1663
Ultrasonic sensor operating in the range from 0 to 765 cm. It operates with a supply voltage from 3.3 V to 5 V. Output is the signal, the duration of which is proportional to...
Index: PLL-11120
Index: PLL-11120
Maxbotix XL - MaxSonar AE4 - ultrasonic distance sensor MB1340 - Pololu 1664
Ultrasonic sensor operating in the range from 0 to 765 cm. It operates with a supply voltage from 3.3 V to 5 V. Output is the signal, the duration of which is proportional to...
Index: PLL-11122
Index: PLL-11122
Ultrasonic distance sensor URM08-RS485 35-550cm - DFRobot SEN0246
Ultrasonic distance sensor operating in the range from 35 to 550 cm . The sensor is powered from 6 V to 12 V. It communicates via RS485 interface, supports Modbus RTU protocol...
Index: DFR-15317
Index: DFR-15317
See also
How does an ultrasonic distance sensor work?
The principle of operation of an ultrasonic distance sensor is to send ultrasound through the sensor and receive it back - similarly to the laser beam from laser distance sensors. Based on the time difference between sending and receiving the signal (ultrasound), it is possible to determine the distance between the sensor and the object from which the ultrasonic wave was reflected. Because ultrasonic distance sensors use an audio signal rather than light in the measurement process, they can be used in applications where photoelectric sensors have difficulty detecting plastic objects and curved surfaces with very good light reflectivity. Ultrasonic sensors are also resistant to any environmental light disturbances and environments heavily polluted with dust.
What should you consider when choosing an ultrasonic sensor?
Depending on the application requirements, ultrasonic sensors can be installed in various devices in many ways. The emission of ultrasonic waves from the sensor involves sending them into space, similarly to a laser beam from a photoelectric sensor, so the parallel cooperation of these sensors can be very effective when performing measurements in environments with easy scattering of sound and light waves. For most applications using ultrasonic distance sensors in difficult environments, it is worth installing an additional photoelectric sensor to prevent incorrect reflections of ultrasonic waves that can seriously falsify the measurement.
It is also worth taking into account such aspects as the selection of the optimal measurement mode depending on the sensor application, the required measurement range, the type of measurement information output (e.g. to connect to the analog input in Arduino or to a relay switching e.g. the direction of travel of the robot), as well as the shape and material of the housing of the device in which we want to install the ultrasonic distance sensor.
Ultrasonic distance sensors - FAQ
You can check the operation of an ultrasonic sensor by connecting it to power and measuring changes in the output signal under conditions in which the sensor should respond (for example, by moving your hand in front of it). Before working with any distance sensor , it is often necessary to calibrate its sensitivity.