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。
The MB1240 XL-MaxSonar-EZ4 is a high-performance ultrasonic distance sensor with a range of 20 to 765 cm. While this tutorial is written for the MB1240, it can also be used for other MaxBotix sensors, and serves as a great reference for those interested in using an ultrasonic sensor with...
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...
UltraSonicDistanceSensor distanceSensor(2, 3); HX711 HX711_CH0(5, 6, 1000); float x; float y; float z; float BMI; void setup () { lcd.begin(16, 2); // lcd2.begin(16, 2); lcd.setBacklight(255); lcd.print("Initializing..."); ...
Experimental data on the free fall of a plastic box through the air was gathered with the help of an ultrasonic distance sensor (HC-SR04). Readings were taken at different intervals during the fall to obtain distance time curves. Acceleration during the free fall was then determined by ...
项目地址:https://www.tinkercad.com/things/j0k4YgzXoDF-ultrasonic-distance-sensor-led-bar-graph-blocks intdistanceThreshold =0;intcm =0;intinches =0;longreadUltrasonicDistance(inttriggerPin,intechoPin) { pinMode(triggerPin, OUTPUT);//Clear the triggerdigitalWrite(triggerPin, LOW); ...
/* 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; int distance; void setup() { // Define inputs ...
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: 超声波传感器 HC-SR04 包括四个引脚: ...
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