1、Complete Guide for Ultrasonic Sensor HC-SR04 with Arduino關(guān)于超聲傳感器HC SR04與Arduino一起使用的完整指南View Project on Random Nerd Tutorials查看項目的任意傻瓜指南Click here點(diǎn)擊這里View code on GitHub 查看GitHub上的代碼Click hereClick here點(diǎn)擊這里This project is about the Ultrasonic Sensor HC SR04. .本課題是關(guān)于超聲波傳感器HC SR04的。Well explain how it

2、 works, show some features and share an Arduino Project example. 我們將解釋它是如何工作的， 展示些特性并共享一個Arduno項目示例。We provide a schematic diagram on how to wire the ultrasonic sensor, and an example sketch to use with your Arduino. 我們提供了一個如何連接超聲波傳感器的示意圖，以及一個示例草圖，以與您的Arduino一起使用。Description 描述The HC-SR04 ultrasonic

3、 sensor uses sonar to determine distance to an object like bats do. HC SR04超聲波傳感器使用聲納來確定距離物體的距離，就像蝙蝠一樣。It offers excellent non-contact range detection with high accuracy and stable readings in an easy-to-use package. 它在一個易于使用的軟件包提供了優(yōu)良的非接觸式距離檢測與高精度和穩(wěn)定的讀數(shù)。From 2cm to 400 cm or 1” to 13 feet. 從2厘米到400厘

4、米或1英寸到13英尺。Its operation is not affected by sunlight or black material like sharp rangefinders are (although acoustically soft materials like cloth can be difficult to detect).它的運(yùn)作不受陽光的影響， 也不受像銳利測距儀這樣的黑色材料的影響(盡管像布這樣的聲學(xué)軟材料很難探測到)。It comes complete with ultrasonic transmitter and receiver module.它配有超聲波

5、發(fā)射器和接收器模塊。Features特點(diǎn)l Power Supply :+5V DC 電源：+5V直流電l Quiescent Current : 2mA 靜態(tài)電流：2mAl Working Current: 15mA 工作電流：15mAl Effectual Angle: 15 有效角度：15l Ranging Distance : 2cm 400 cm/1 13ft 測距：2厘米 - 400厘米/ 1英寸 - 13英尺l Resolution : 0.3 cm 分辨率：0.3厘米l Measuring Angle: 30 degree 測量角度：30度l Trigger Input Pul

6、se width: 10uS 觸發(fā)輸入脈沖寬度：10uSHow Does it Work?它是如何工作的？The ultrasonic sensor uses sonar to determine the distance to an object. Heres what happens:超聲波傳感器使用聲吶來確定到物體的距離。下面是具體的過程：1. The transmitter (trig pin) sends a signal: a high-frequency sound;發(fā)射器（觸發(fā)引腳）發(fā)出信號：一個高頻聲;2. When the signal finds an object, i

7、t is reflected and當(dāng)信號找到一個物體時，它會被反射并且.3. The transmitter (echo pin) receives it.發(fā)射器（回聲引腳）接收它。The time between the transmission and reception of the signal allows us to calculate the distance to an object. This is possible because we know the sounds velocity in the air.傳輸和接收信號之間的時間使我們能夠計算到物體的距離。這是可能的，

8、因為我們知道聲音在空氣中的傳播速度。Sensor Pins 傳感器引腳l VCC: +5VDC l Trig : Trigger (INPUT) l Echo: Echo (OUTPUT) l GND: GND 電源：+5V直流電觸發(fā)：觸發(fā)（輸入）回聲：回聲（輸出）公共端：接地Where to buy? 在哪里買？You can check the Ultrasonic Sensor HC-SR04 sensor on Maker Advisor and find the best price.您可以在Maker Advisor上查看超聲波傳感器HC-SR04傳感器并找到最好的價錢。Ardui

9、no with HC SR04 SensorArduino與HC - SR04傳感器In this project the ultrasonic sensor reads and writes the distance to an object in the Serial Monitor.在這個項目中，超聲波傳感器讀取和寫入串行監(jiān)視器中物體的距離。The goal of this project is to help you understand how this sensor works. Then, you can use this example in your own projects

10、.該項目的目標(biāo)是幫助您了解此傳感器的工作原理。然后，您可以在自己的項目中使用此示例。Note: Theres an Arduino library called NewPing that can make your life easier when using this sensor.注意：有一個名為NewPing的Arduino庫可以讓您在使用此傳感器時更輕松。Parts Required 需要的部件l Arduino UNO read Best Arduino Starter Kitsl Arduino UNO 讀者最好的Arduino入門套件l Ultrasonic Sensor (HC-SR04)l 超聲波傳感器(HC-SR04)l Breadboardl 面包板l Jumper wiresl 跳線Schematics 電路圖Follow the next schematic diagram to wire the HC-SR04 ultrasonic sensor to theArduino.按照接下來的電路圖將HC-SR04超聲傳感器連接到Arduino上。The followi