1) 利用 Arduino 的数字引脚给超声波传感器的 Trig 引脚至少 10 微秒的高电平信号,这会让HC-SR04 超声波测距模块发射出8个40K赫兹的超声波脉冲(ultrasonic burst)。 2) 8个超声波脉冲发出后,echo引脚会输出高电平。假如没有声波返回,echo引脚会在38微秒后输出低电平。假如有声波返回,echo引脚会进入低电平状态。
在您的计算机上打开Arduino IDE软件。 用Arduino语言编码将控制你的电路。 单击“新建”打开新的草图文件。 Arduino代码 (Arduino Code) const int pingPin = 7; // Trigger Pin of Ultrasonic Sensor const int echoPin = 6; // Echo Pin of Ultrasonic Sensor void setup() { Serial.begin(9600); // Sta...
What is an Arduino Ultrasonic Sensor? An ultrasonic sensor is a sensor that measures distances through ultrasound which travels through the air. If the ultrasound hits an object or obstacle on its path, it will then bounce back towards the sensor. Ultrasonic SensorWorking Principle ref Here is a...
Learn how to use ultrasonic sensor to control LED. The detail instruction, code, wiring diagram, video tutorial, line-by-line code explanation are provided to help you quickly get started with Arduino. Find this and other Arduino tutorials on ArduinoGetS
How to Connect HC-SR04 Ultrasonic Sensor to Arduino Here’s how we need to connect the HC-SR04 sensor to an Arduino board. The Ground and the VCC pins of the module needs to be connected to the Ground and the 5 volts pins on the Arduino Board respectively and the trig and echo pins...
The Ultrasonic sensor has four terminals - +5V, Trigger, Echo, and GND connected as follows − Connect the +5V pin to +5v on your Arduino board. Connect Trigger to digital pin 7 on your Arduino board. Connect Echo to digital pin 6 on your Arduino board. ...
The working of this Arduino smart dustbin is very simple. The ultrasonic sensor acts as the input and the servo motor acts as the output, the Arduino UNO microcontroller is the main brain behind the project. The block diagram for Arduino smart dustbin is shown below As shown in the block ...
In the tutorialUltrasonic Sensor Arduino Interfacing,we have learnt about the pins and working principle of ultrasonic sensor to estimate the distance of an object from the sensor. I hope you enjoyed the tutorial. I have provided all the important details about ultrasonic sensor Arduino interfacing....
// Arduino Ultrasonic Sensor Tutorial // ©2019 The Geek Pub. Freely distributable with attribution // Defines the sensor pins const int echoPin = 9; const int triggerPin = 10; // defines variables long timetofly; int distance; void setup() { ...
Learn how to use ultrasonic sensor to control piezo buzzer. The detail instruction, code, wiring diagram, video tutorial, line-by-line code explanation are provided to help you quickly get started with Arduino. Find this and other Arduino tutorials on Ar