//---//millisBlink.ino///Created 2015-05-28//By seesea <seesea2517#gmail#com>///使用millis()来判断时间间隔进行的闪灯程序///使用板上 LED//---constunsignedcharled =13;constunsignedlongswitchMs =1000;//亮灭的切换延时时间unsignedlonglastMs =millis();boollight =false;voidsetup...
建议在开始编程Arduino UNO进行多任务处理之前，一次又一次地使用millis练习闪烁LED以使逻辑清晰并使自己...
// the LED is bigger than the interval at which you want to // blink the LED. unsigned long currentMillis = millis(); if (currentMillis - previousMillis >= interval) { // save the last time you blinked the LED previousMillis = currentMillis; // if the LED is off turn it on and...
boolean blink = false; boolean ledPin_state; void setup() { Serial.begin(9600); pinMode(ledPin, OUTPUT); // 将数字管脚设置为输出 digitalWrite(ledPin, HIGH); // 打开LED ledPin_state = digitalRead(ledPin); // 存储初始LED状态。当LED亮起时为高 keypad.addEventListener(keypadEvent); // 为...
按照图示方法打开Blink程序: // the setup function runs once when you press reset or power the board void setup() { // initialize digital pin LED_BUILTIN as an output. pinMode(LED_BUILTIN, OUTPUT); } // the loop function runs over and over again forever ...
previousMillis2 = currentMillis; // save the last time you blinked the LED if (ledState2 == LOW) { // if the LED is off turn it on and vice-versa ledState2 = HIGH; } else { ledState2 = LOW; } digitalWrite(led2, ledState2);//set LED with ledState to blink again ...
35 int ledState = LOW; // 记录LED灯的当前状态,LOW: dark; HIGH: light 36 unsigned long previousMillis = 0; // will store last time LED was updated 37 const long interval = 500; // interval at which to blink (milliseconds) 38 ...
Serial.println("pushpressed is false in blink"); 无符号长 currentMillis = millis(); if (currentMillis - previousMillis >= interval) { previousMillis = currentMillis; // 保存上次闪烁 LED 的时间 Serial.println("Start Buzzing"); if (ledState == LOW) { // 如果 LED 关闭,则将其打开,反之...
实验接线:Uno D2接流量传感器OUT,LED接D13 */ #define pin 2 #define led 13 volatile long count = 0;//变量count声明为volatile类型 void setup() { pinMode(pin, INPUT); pinMode(led, OUTPUT); attachInterrupt(0, blinkA, FALLING);//当引脚电平由高电平变为低电平时触发中断服务程序 ...
pinMode(led, OUTPUT); attachInterrupt(0, blinkA, FALLING);//当引脚电平由高电平变为低电平时触发中断服务程序 Serial.begin(9600); Serial.println("准备就绪OK"); Serial.println(""); } void loop() { Serial.print("累计脉冲="); Serial.println(count); ...