时间

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你将学到什么

你将学到arduino和时间相关的函数

函数

简介

arduino代码

例子：测量arduino设置数字针脚状态所需要的时间。

int led = 13;

unsigned long startTime,finishedTime,passedTime;

void setup() {

  // put your setup code here, to run once:

Serial.begin(9600);

pinMode(led,OUTPUT);

digitalWrite(13,LOW);

}

void loop() {

  // put your main code here, to run repeatedly:

  startTime = micros();

  digitalWrite(led,HIGH);

  finishedTime=micros();

  passedTime=finishedTime-startTime;

  Serial.println(“LOW 到HIGH的时间：”+String(passedTime));

  delay(1000);

  startTime=micros();

  digitalWrite(led,LOW);

  finishedTime=micros();

  passedTime=finishedTime-startTime;

  Serial.println(“HIGH 到LOW的时间：”+String(passedTime));

  delay(1000);

}

串口监视器

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