LED was updated // constants won't change: const long interval = 1000; // interval at which to blink (milliseconds) void loop() { // here is where you'd put code that needs to be running all the time. // check to see if it's time to blink the LED; that is, if the ...
// END of Trinket-specific code. pixels.begin();// INITIALIZE NeoPixel strip object (REQUIRED) } // 在这里编写你的代码,控制LED灯条的亮灭和颜色 voidloop() { pixels.clear();// Set all pixel colors to 'off' // The first NeoPixel in a strand is #0, second is 1, all the way up ...
流水灯程序如下: intLED_button;inti=1;voidsetup() {//put your setup code here, to run once:pinMode(13,OUTPUT);LED_button=13;} voidloop() {//put your main code here, to run repeatedly:while(i!=0){digitalWrite(LED_button,HIGH);delay(500);digitalWrite(LED...
}voidloop() {for(intx=0;x<length;x++) { tone(tonepin,tune[x]); digitalWrite(ledp, HIGH); delay(400*durt[x]);//与前一代码不同之处,这里将原来的500分为了400和100,分别控制led的开与关,对于蜂鸣器来说依然是500.digitalWrite(ledp, LOW); delay(100*durt[x]); noTone(tonepin); } del...
(4)代码 - Code 代码主要介绍了 for 循环迭代 演示使用 for 循环 依次点亮 LED 并熄灭,然后点亮下一个 LED 并熄灭。然后倒序重复操作~ /*For Loop IterationDemonstrates the use of a for() loop.Lights multiple LEDs in sequence, then in reverse.The circuit:* LEDs from pins 2 through 7 to ground...
} for(intcolorValue = 255;colorValue >= 0;colorValue -= 5) { analogWrite(colorPin,colorValue); delay(30); } } voidloop() { intredValue,greenValue,blueValue; breath(redValue,redPin); breath(greenValue,greenPin); breath(blueValue,bluePin); ...
程序首先把LED_BUILTIN引脚配置为输出引脚,意思是板子可以控制该引脚输出为高电平或者低电平,LED引脚一端接在板子控制端口,而另外一端是接在参考地上,可以认为参考地是零电平或者低电平。当loop函数开始执行的时候,把控制端引脚输出为高电平,而参考地是低电平,所以LED被点亮,同理把控制端引脚输出为低电平,两点之间...
pinMode(LED_BUILTIN, OUTPUT);// GPIO2是ESP32的板载LED Serial.begin(115200);// 初始化串口通信 Serial.println("ESP32 LED Blink Test"); } void loop() { digitalWrite(LED_BUILTIN, HIGH);// LED点亮 delay(1000);// 延时1秒 digitalWrite(LED_BUILTIN, LOW);// LED熄灭 ...
pinMode( LED_PIN, OUTPUT ); } void loop(){ digitalWrite( LED_PIN, HIGH ); } view rawcode01.ino hosted with by GitHub 当对数字输出进行控制时,第4行和第8行的内容非常重要。数字输入/输出有两种方式:可以改变端子状态的“数字输出”以及可以读取端子状态的“数字输入”。因此,必须预先指定要使用...
int ay[13]={0,0,0,0,0,0,0,0,0,0,0,0,0};void setup() {int i;// put your setup code here, to run once:for(i=1;i<14;i++){pinMode(i,OUTPUT);}}void loop() {// put your main code here, to run repeatedly:int p=1;int n;f...