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);
}
} 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。 要去掉const
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