pinMode(led, OUTPUT);设置数字引脚13(led变量所代表的引脚)为输出模式。这意味着该引脚可以输出高电平(HIGH)或低电平(LOW)。 4.loop()函数 void loop() { digitalWrite(led, HIGH); // turn the LED on (HIGH is the voltage level) delay(1000); // wait for a second digitalWrite(led, LOW); /...
在本例中,只有一个命令,正如注释所述,它告诉Arduino板我们将使用LED pin作为输出。 程序必须有一个“循环”函数。与只运行一次的“setup”函数不同,在复位之后,“loop”函数将在运行完命令后立即重新启动。 void loop() { digitalWrite(led, HIGH); // turn the LED on (HIGH is the voltage level) delay(...
turnONLedSpeaker(400); morseCode.concat("-");// Storing code in variable morseCode with the help of concatenation function Serial.print("-");//Prints User entered Code delay(200); }elseif(dotButtonState == HIGH) { turnONLedSpeaker(300); morseCode.concat("."); Serial.print("."); ...
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...
digitalWrite(led, LOW); // turn the LED off by making the voltage LOW delay(1000); // wait for a second } 复制代码 代码开头: /* Blink Turns on an LED on for one second, then off for one second, repeatedly. This example code is in the public domain. ...
This example code is in the public do main. */ //Pin13 has an LED connected on most Arduino boards. //give it a name: Int led=13; //the setup routine runs once when you press reset Void setup(){//initialize the digital pin as an output. ...
const int LED = 3; //define digital pin 3 as LED output void setup() { //Pin Configurations pinMode(LED, OUTPUT); //configure the LED pin as an Output } void loop() { //Flash a LED on and off every second digitalWrite(LED, HIGH); //Turn LED on for 1/2 a second ...
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 } 1. 2. ...
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...
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 } [Get Code] ...