Description:
The Grove - Ultrasonic Distance Sensor is an ultrasonic transducer that utilizes ultrasonic waves to measure distance. It can measure from 3cm to 350cm with an accuracy of up to 2mm. It is a perfect ultrasonic module for distance measurement, proximity sensors, and ultrasonic detectors.
This module has an ultrasonic transmitter and an ultrasonic receiver, so you can consider it an ultrasonic transceiver. Familiar with sonar, 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 transmission to reception, and then multiply the speed of sound in the air (340 m/s) to calculate the distance from the sensor to the object.
Compared with traditional ultrasonic modules HC-SR04, the Grove - Ultrasonic Distance Sensor integrates a single-chip microcomputer, and the transmitting signal and the receiving signal share one pin by time-division multiplexing, so only one I/O pin is occupied. Another difference is that HC-SR04 only supports 5V voltage, while Grove - Ultrasonic Distance Sensor supports 5V and 3.3V. As we know, the Raspberry Pi I/O only supports 3.3V. Therefore, the Grove - Ultrasonic Distance Sensor can be directly connected to the I/O of the Raspberry Pi, but the HC-SR04 needs to use a voltage conversion circuit.
Grove - Ultrasonic Distance Sensor vs HC-SR04
What's more, we provide full documents and libraries for Arduino, Python, and Codecraft so that you can use the Grove - Ultrasonic Distance Sensor with Arduino and Raspberry Pi easily. Wide voltage range, single I/O pin, plug and play Grove connector, we try our best to make this module easier to use and reduce your work.
Features:
Wide Range of Voltage Support: In the range of 3.2V~5.2V, compatible with 3.3V / 5V, and can be directly connected to the Raspberry Pi I/O.
Save I/O Resources: Only need 3 pins, transmit and receive signals occupy one I/O pin through time division multiplexing.
Wide Measurement Range: 3cm ~ 350cm.
Easy to Use: Compatible with Grove port, just plug-and-play
Full Documents and Libraries Provided: For Arduino, Python, and Codecraft.
Specifications:
Dimensions: 50mm x 25mm x 16mm
Weight: 17g
Measuring Range: 3cm - 350cm
Operating Voltage: DC 3.2~5.2V
Operating Current: 8mA
Ultrasonic Frequency: 40kHz
Connector: Grove x1
Output: PWM
Hardware Overview:
Application:
- Distance measurement
- Ultrasonic detector
- Proximity alarm
- Smart car
Documents:
Part List:
1x Grove - Ultrasonic Ranger
