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Grove - Ultrasonic Distance Sensor

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101020010
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The Grove - Ultrasonic Distance Sensor is an ultrasonic transducer that utilizes ultrasonic waves to measures distance. It can measure from 3cm to 350cm with the accuracy up to 2mm.

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PRODUCT DETAILS

The Grove - Ultrasonic Distance Sensor is an ultrasonic transducer that utilizes ultrasonic waves to measures distance. It can measure from 3cm to 350cm with the accuracy 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 as an ultrasonic transceiver. Familiar with sonar, when the 40KHz 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. 

How does the ultrasonic distance sensor work?

Here is a simple example of how an ultrasonic sensor works to measure distance:

  • Firstly, the transmitter (trig pin) sends a sound wave
  • The object picks the wave up, reflecting it back to the sensor.
  • The receiver (echo pin) picks it up
 
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, Grove - Ultrasonic Distance Sensor can be directly connected to the I/O of the Raspberry Pi, but 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

  • 3.3V / 5V compatible, wide voltage level: 3.2V~5.2V
  • Only 3 pins needed, save I/O resources
  • Wide measurement range: 3cm ~ 350cm
  • Plug and play with Grove connector

Applications

  • Distance measurement
  • Ultrasonic detector
  • Proximity alarm
  • Smart car

Demo 

We updated the support and example code to help you plug and play the ultrasonic distance sensor with Wio Terminal. 

Hardware Overview 

 Overview

Technical details

Dimensions 50mm x25mm x16mm
Weight G.W 17g
Battery Exclude
Measuring range 3cm - 350cm
Operating voltage DC 3.2~5.2V
Operating current 8mA
Ultrasonic frequency 40kHz
Connector Grove x1
Output PWM

Part List

Grove - Ultrasonic Ranger 1

ECCN/HTS

HSCODE 9031900090
USHSCODE 9023000000
UPC 841454107484

LEARN AND DOCUMENTS

Documentations

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[] How to measure and display the distance with Arduino
This tutorial contain two parts. The first one will teach you to measure distance with Grove - Ultrasonic Ranger and display the distance on the Grove - LCD RGB backlight. The another one will teach you how to control the number of illuminated LEDs of th
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REVIEWS

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  1. Rating
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    Made a much better Radar system by processing an analog signal derived from an intermediate point. Checkout: https://www.instructables.com/id/Arduino-Analog-Ultrasonic-Radar/
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