Description:
Ultrasonic Sensor is a transducer that utilizes ultrasonic waves to measure distance, moreover, it is a non-contact distance measurement module that works at 40 kHz and can measure from 3 cm to 350 cm with an accuracy of up to 2 mm. This is a perfect Ultrasonic Sensor Module as a proximity sensor, and ultrasonic detector, for distance measurement, and smart car systems.
This Ultrasonic Sensor has an ultrasonic transmitter and an ultrasonic receiver so you can consider it as an ultrasonic transceiver. Ultrasonic Sensor has 4 pins with their functions as shown in the figure above. When the 40 kHz ultrasonic wave generated by the transmitter encounters the object, the sound wave will be emitted back, and the receiver can receive the reflected ultrasonic wave. It is only necessary to calculate the time from the transmission to the reception, and then multiply the speed of the sound in the air (340 m/s) to calculate the distance from the sensor to the object.
Formula: Distance = Echo Signal High Time * Sound Speed (340M/S)/2.
Specifications:
- Operating Voltage: 3.2~5.2V DC
- Max. Operating Current: 8mA
- Ultrasonic Frequency: 40kHz
- Measurement Range: 3 cm to 350 cm
- Accuracy: 2mm
Features:
- 3.3 V / 5 V compatible
- Only 3 pins are needed, so saves I/O resources
- Easy to use- just plug-and-play
Package Included:
1 x REES52 Ultrasonic Sensor with 4-Pin JST Connector Distance Sensor Compatible with Grove Kit
