Now that your setup has been completed, move into the main loop of your code. When your button is not pressed, the internal pull-up resistor connects to 5 volts. This causes the Arduino to report "1" or HIGH. When the button is pressed, the Arduino pin is pulled to ground, causing ...
const int buttonpin = 2;//button连接引脚 const int ledpin = 13;//led连接引脚 void setup() { // put your setup code here, to run once: pinMode(ledpin, OUTPUT);//设置led连接引脚为输出模式 pinMode(buttonpin, INPUT); //设置button连接引脚为输入模式 } void loop() { // 检测按钮是否...
pinMode(ledPin,OUTPUT); // initialize the pushbutton pin as an input: pinMode(buttonPin,INPUT); } voidloop() { // 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=...
#include <Bounce2.h> // 定义编码器引脚 const int encoderPinA = 2; const int encoderPinB = 3; const int buttonPin = 4; // 创建编码器对象和按键对象 Bounce encoderBut
pinMode(BUTTON_PIN, INPUT_PULLUP); } voidloop() { Serial.println(digitalRead(BUTTON_PIN)); delay(100); } Let’s break down this code line by line. Code to setup the push button #define BUTTON_PIN 4 First we create a #define for the button pin, so we don’t need to write “4...
首先在int button =5这里是为了设定一个按钮的端口，这里我们将其设定为5，因此我们需要将线连接到...
(看图片)在右边,应该打开了Simulation View。您可以通过在右下方的模拟视图中单击单词 button 来模拟按钮按下事件。活动状态应从“熄灭”更改为“点亮”。五秒钟后,或单击时间事件 Light_On_timer_event_0 后,活动状态将更改回 Light Off 。太棒了!现在,让我们检查一下如何在Arduino上使用它。
// Define IR Remote Button Codes #define irUp 16736925 #define irDown 16754775 #define irRight 16761405 #define irLeft 16720605 #define irOK 16712445 #define ir1 16738455 #define ir2 16750695 #define ir3 16756815 #define ir4 16724175
[Get Code] 更多 setup() loop() pinMode() digitalRead() delay() int serial DigitalPins Blink Without Delay: 不用delay()函数,使LED灯闪烁 Button: 用一个按钮来控制LED灯 Debounce: 读取一个按钮,并滤掉噪音 Button State Change: 记录按键按下的次数 ...
// 定义常量const int buttonPin = 2;const int ledPin = 13;// 按键前一个状态int oldButtonState = HIGH;// 按键状态int buttonState = HIGH;// led灯状态，false->没亮，true->亮boolean ledState = false;void setup() {// 使用内置上拉电阻 pinMode(buttonPin, INPUT_PULLUP); pinMode(led...