void loop() { digitalWrite(13, HIGH); // turn the LED on (HIGH is the voltage level) delay(2000); // wait for a second digitalWrite(13, LOW); // turn the LED off by making the voltage LOW delay(1000); // wait fo
// The setup function that runs one time at startupvoidsetup() {pinMode(13, OUTPUT);// Initialize digital pin 13 as an output.}// The main loop that continues forevervoidloop() {digitalWrite(13, HIGH);// turn the LED on (HIGH is the voltage level)delay(1000);// wait for a seco...
} else { // turn LED off: digitalWrite(ledPin, LOW); } } 代码的工作原理 下面概述了代码的工作原理: 变量和常量: buttonPin:连接按钮的引脚 2。 ledPin:连接 LED 的引脚 13。 buttonState:存储按钮的状态(HIGH 或 LOW)。 setup(): 设置为 OUTPUT 和 INPUT。ledPinbuttonPin loop(): 读取按钮的状态。
https://www.arduino.cc/en/Tutorial/PWM 2.LED模块 你的LED模块可能是这样子 也可能是这样子 不管长什么样,只要单色可调光LED,都是三根线。 标注字符IN的是控制线、VCC是电源线、GND是地线。 3.连接模块 Mega开发板,2-13都是pwm接口,随便选一个都可以。 Uno开发板,3,5,6,9,10,11是pwm接口,可以在开...
OnTime)) { ledState = LOW; // Turn it off previousMillis = currentMillis; // Remember the time digitalWrite(ledPin, ledState); // Update the actual LED } else if ((ledState == LOW) && (currentMillis - previousMillis >= OffTime)) { ledState = HIGH; // turn it on previous...
LED闪烁程序 代码语言:javascript 代码运行次数:0 运行 AI代码解释 int led=13;voidsetup(){// initialize the digital pin as an output.pinMode(led,OUTPUT);}voidloop(){digitalWrite(led,HIGH);// turn the LED on (HIGH is the voltage level)delay(1000);// wait for a seconddigitalWrite(led,LOW...
void setup() { // initialize digital pin PC13 as an output. pinMode(PC13, OUTPUT);}// the loop function runs over and over again forevervoid loop() { digitalWrite(PC13, HIGH); // turn the LED on (HIGH is the voltage level) delay(1000); // wait for a second digital...
digitalWrite(13, HIGH); // turn the LED on (HIGH is the voltage level) delay(1000); // wait for a second digitalWrite(13, LOW); // turn the LED off by making the voltage LOW delay(1000); // wait for a second } 主函数里面就直接使用digitalWrite(pin,mode)函数来给IO口13定义输出...
pinMode(led, OUTPUT); } //the loop routine runs over and over again forever: void loop(){ digitalWrite(led, HIGH); //turn the LED on(HIGH is the voltage level) delay(1000);//wait for a second digitalWrite(led, LOW); //turn the LED off by making the voltage LOW ...
pinMode(LED_BUILTIN, OUTPUT); } // the loop function runs over and over again forever void loop() { digitalWrite(LED_BUILTIN, HIGH); // turn the LED on (HIGH is the voltage level) delay(1000); // wait for a second digitalWrite(LED_BUILTIN, LOW); // turn the LED off by makin...