Arduino_Learning/MeasuringDistance 代码语言:javascript 代码运行次数:0 运行 AI代码解释 /* * 使用超声波传感器测量距离并显示在 LCD 上,当距离小于 20 时,发出警报 */// 导入库文件#include"Ultrasonic.h"#include<LiquidCrystal_I2C.h>#include"Wire.h"LiquidCrystal_I2Clcd(0x27,16,2);//设置(trig,echo)...
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。
Ultrasonic Sensor measure the distance of target objects or materials through the air using "non-contact" technology. They measure distance without damage and are easy to use. The output Signals received by the sensor are in the analog form, and output is digitally formatted and processed by ...
Next up we have our very own Grove – Ultrasonic Distance Sensor, Seeed’s very own version of an ultrasonic distance sensor which is comparative to the HC-SR04. It can measure from 3cm to 350cm with the accuracy up to 2mm. It is a perfect ultrasonic module for distance measurement, prox...
/* Arduino example code for MaxBotix MB1240 XL-MaxSonar-EZ4 ultrasonic distance sensor: analog voltage output. More info: www.makerguides.com */ #define sensorPin A0 int distance = 0; void setup() { Serial.begin(9600); } void read_sensor() { distance = analogRead(sensorPin) * 1; } ...
HC-SR04P HCSR04P Ultrasonic Sensor HC-SR04 HCSR04 Measuring Distance Sensor LED Display Module for Arduino Robot 4.8 4 ReviewsColor: 1Product sellpoints Easy Integration with Arduino:Designed for Arduino, this sensor module is a breeze to set up and use with Arduino code for distance sensor. ...
/* Example code for HC-SR04 ultrasonic distance sensor with Arduino. No library required. More info: https://www.makerguides.com */ // Define Trig and Echo pin: #define trigPin 2 #define echoPin 3 // Define variables: long duration; ...
float distance; //定义一个浮点型的变量 void setup() { Serial.begin(9600); //设置波特率 pinMode(ting,OUTPUT); //连接SR04的引脚 pinMode(echo,INPUT); //设置输入状态 Serial.println("ultrasonic sensor"); // } void loop() { digitalWrite(ting,LOW); //产生一个10US的高脉冲去触发Trigpin ...
Serial.println("Ultrasonic sensor:");} void loop()// 产生一个10us的高脉冲去触发TrigPin digitalWrite(TrigPin, LOW);delayMicroseconds(2);digitalWrite(TrigPin, HIGH);delayMicroseconds(10);// 检测脉冲宽度，并计算出距离 distance = pulseIn(EchoPin, HIGH);Serial.print(distance);Serial.print("cm")...
About Ultrasonic Sensor 关于超声波传感器 Ultrasonic sensor HC-SR04 is used to measure the distance to an object by using ultrasonic waves. 超声波传感器HC-SR04用于通过超声波测量到物体的距离。 Pinout 引脚排列 The ultrasonic sensor HC-SR04 includes four pins: ...