xiejinxue 发表于 2014-11-23 10:51:01

Arduino求助!关于led交替闪烁的问题!

我在程序里面是让led延时1秒交替闪烁,为什么在仿真里面过了好久才亮?
const int buttonPin = 8;   // the number of the pushbutton pin
const int ledPin =13;      // the number of the LED pin

// variables will change:
int buttonState = 0;         // variable for reading the pushbutton status

void setup() {
// initialize the LED pin as an output:
pinMode(ledPin, OUTPUT);      
// initialize the pushbutton pin as an input:
pinMode(buttonPin, INPUT);   
}

void loop(){
// read the state of the pushbutton value:
buttonState = digitalRead(buttonPin);

// check if the pushbutton is pressed.
// if it is, the buttonState is HIGH:
if (buttonState == LOW) {   
    // turn LED on:   
    digitalWrite(ledPin, HIGH);
    delay(1000);
    digitalWrite(ledPin,LOW);
   delay(1000);
}
else {
    // turn LED off:
    digitalWrite(ledPin, LOW);
}
}

xinhoujue 发表于 2014-11-23 11:16:50

const int buttonPin = 8;   //设置 8 为输入按钮

你图上怎么没有?!

你这段程序的功能是:按下buttonPin 后 ledPin 就亮1秒灭1秒,否则 ledPin 熄灭。

huairou 发表于 2014-11-29 15:10:27

要去掉const
页: [1]
查看完整版本: Arduino求助!关于led交替闪烁的问题!