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 == HIGH) { /* turn LED on:*/ digitalWrite(ledPin, HIGH); ...
/*ButtonTurns on and off a light emitting diode(LED) connected to digital pin 13,when pressing a pushbutton attached to pin 2.The circuit:- LED attached from pin 13 to ground through 220 ohm resistor- pushbutton attached to pin 2 from +5V- 10K resistor attached to pin 2 from ground- ...
int buttonState; //初始化按钮状态 void setup() { pinMode(ledPin, OUTPUT); //将LED引脚设为输出 pinMode(buttonPin, INPUT_PULLUP); //将按钮引脚设为输入,使用内部上拉电阻 } void loop() { buttonState = digitalRead(buttonPin); //读取按钮状态 if (buttonState == LOW) { //如果按钮被按下...
green_button = PhotoImage(file = ".\\pic\\greenlight.png") red_button = PhotoImage(file = ".\\pic\\redlight.png") btn = cv.create_image(150, 0, anchor=NE, image=green_button) def flashr(): global c cv.itemconfigure(btn, image=[red_button,green_button][randint(0,1)]) c=root...
int buttonState = 0; //用来存储读取按钮引脚的值void setup() {pinMode(ledPin, OUTPUT); //将LED引脚设为输出模式pinMode(buttonPin, INPUT); //将按钮模块设为输入模式}void loop() {//读取button引脚的值buttonState = digitalRead(buttonPin);//如果按钮的引脚为高电平,则灯也为高电平,灯亮if (...
But when we press the button, void Attach(int pin) { servo.attach(pin); } v oid Detach() { servo.detach(); } v oid Update() { if((millis() - lastUpdate) > updateInterval) // time to update { lastUpdate = millis(); pos += increment; servo.write(pos); Serial.println(pos)...
DACCAN Bus (external transceiver required)VRT (to power the RTC) & OFF (to turn off the board) pinsArduino MEGA headers3.3V operating voltage8mA per I/O pinSecurity – Microchip ATECC608A secure elementDebugging – JTAG connectorMisc – Reset button, BOOT0 button, RGB LED, power LED...
Button1.attach(button1_callback); } /*With this we can change the mode if we want to implement a general lamp feature, with for instance general pulsing. Maybe if the sound is low for a while? */ void loop() { Blinker.run(); ...
高亮度LED灯珠+MOS管驱动 注意超声波模块的Trig接D3,Echo接D2,人体模块OUT接D4 代码精要解析 核心逻辑用两个中断搞定模式切换,比轮询方式更及时。先看这段中断处理: // 模式切换中断voidchangeMode(){if(digitalRead(modeButtonPin)==HIGH)return;currentMode=!currentMode;displayNeedsUpdate=true;}// 开关中断...
int ledPin = 13; //设置LED为数字引脚13boolean led_state = LOW; // LED初始状态为低boolean button_state1 = 0; //用于记录按钮当前状态boolean button_state2 = 0; //用于记录按钮前一个状态void setup(){pinMode(buttonPin, INPUT);pinMode(ledPin, OUTPUT);}void loop(){button_state1 = ...