int ledPin = 9; //LED 接数字引脚 9int buttonPin = 2; //按键接中断 0，即数字引脚 2void setup() {pinMode(ledPin, OUTPUT);pinMode(buttonPin,INPUT_PULLUP); //按键设为输入模式,内部上拉attachInterrupt(0, testProgram, FALLING); //下降沿触发中断 0，调用 testProgram 函数}void loop(){ ...
int button_pin = A0; int buzzer_pin = 8; void setup() { Serial.begin(9600); pinMode(button_pin, INPUT); pinMode(buzzer_pin, OUTPUT); } void loop() { int buttonState = digitalRead(button_pin); Serial.println(buttonState); if (buttonState == HIGH) { tone(8, 440, 20...
int LED_LP = 28,LED_FP = 29; int Buzzer_Pin = 6; int TrigPin = 5, EchoPin = 30; int Button_Pin = 53; int Car1 = 9,Car2 = 10;//LEFT int Car3 = 11,Car4 = 12;//RIGHT //Several functions 一些功能变量 const int t = 750; int Intensity = 0;//The intensity of illuminat...
{//一个扫描周期内无按键按下时,按键按下标志位置0 button_pressed_flag = 0; } if ((currentTime - lastInterruptTime > Sound_Delay) && (button_pressed_flag == false)) {// 检查自上次中断以来是否已经过了足够的消抖时间 lastInterruptTime = currentTime; noTone(buzzerPin); // 延时Sound_Delay...
pinMode(buttonPin, INPUT);将按钮定义为输入单位。 buttonState = digitalRead(buttonPin);描述: 从指定的数字引脚读取数值,HIGH或LOW. 语法: digitalRead(pin) 变量: pin(引脚): 你想要读取的Arduino的 pin(引脚)。 该功能用于读取数字引脚的状态,即高电平(HIGH)还是低电平(LOW)。 按下按钮时,状态为高电平,...
pinMode(buttonPin, INPUT); } void loop(){ // 读取按键状态并存储在变量中 buttonState = digitalRead(buttonPin); // 检查按键是否被按下 // 如果按键按下,那buttonState应该为高电平 if (buttonState == HIGH) { // 点亮LED digitalWrite(ledPin, HIGH); ...
pinMode(buzzer_pin, OUTPUT); } void loop() { int buttonState = digitalRead(button_pin); Serial.println(buttonState); if (buttonState == HIGH) { tone(8, 440, 200); } delay(50); } 在上面的练习中,建议大家一定要动手画电路图、从 0 开始写代码,并且对代码加上必要的注释。这些训练能帮助...
"MeUltrasonicSensor.h"#include "MeMbotDCMotor.h"#include "MeRGBLed.h"#include "Me4Button.h"...
Create your own alarm system using the ESLOV IoT Kit's hub + relay, button and buzzer modules. TheArduino Cloud’s user-friendly interface simplifies complex interactions with sliders, buttons, value fields, and more. Controlling your smart device is always only one click of the mouse or touch...
Change the baud rate to match your preferences or leave it. Make sure the printer is connected and port and board type are set correctly. Press the upload button. That is the button with the arrow to the right. After a while you see the length of the compiled firmware file and the ...