// if the button state has changed: if (reading != buttonState) { buttonState = reading; // only toggle the LED if the new button state is HIGH if (buttonState == HIGH) { ledState = !ledState; } } } // set the LED: digitalWrite(ledPin, ledState); // save the reading. Nex...
delay(20); //延时去抖动 if(digitalRead(button1)){//判断长短键 openState++; } while(digitalRead(button1)); } } void millisBlink(unsigned long currentTime) { //检查是否到达时间间隔 if (currentTime - previousBlinkTime >= blinkInterval) { //如果时间间隔达到了 toggle = (toggle == 1) ?
int lastButtonState; // 此变量用于判断发射红外信号的按键开关所处的状态 void loop() { int buttonState = !digitalRead(BUTTON_PIN); // 读取当前的按键开关状态(检查用户是否按下了按键开关) if (lastButtonState == HIGH && buttonState == LOW) { // 如果按键开关是被按下后再抬起的 Serial.println...
ButtonToggleState); // The value at the first call after first press is true ... } To use 2 buttons, it needs only: #define USE_BUTTON_0 // Enable code for button at INT0 (pin2) #define USE_BUTTON_1 // Enable code for button at INT1 (pin3) or PCINT[0:7] #include "...
Serial.println(buttonState); delay(1); // delay in between reads for stability } (2)注释 /* DigitalReadSerial 数字串口读取 Reads a digital input on pin 2, prints the result to the Serial Monitor 从针脚 2 读取数字输入,并打印至串口监视器。
bool buttonPushed = false; int ledChange = 低; 诠释最后状态=高; 定义引脚的动作,哪个引脚将作为 INPUT 或 OUTPUT 工作。 pinMode(led1,输出); pinMode(led2,输出); pinMode(toggleLed,输出); pinMode(按钮,输入); 现在通过附加中断与 ISR 和中断模式的定义来定义中断引脚。请注意,建议在声明attachInterr...
Toggle_Basic.ino Description These functions return true if the button or switch has been in the pressedFor or releasedFor state for at least the given number of milliseconds. Syntax myInput.pressedFor(ms); myInput.releasedFor(ms); Parameters ...
boolean buttonpressed = false; void handlebutton() { maineventFlags | = flag_interrupt; } 字节LEDSTATE = low; // low = 0 void loop(){ // ***这是基于中断的基于D3(中断1)的按钮的中断be拒绝, if(maineventflags&flag_interrupt) { lowpower...
UI_KEYS_I2C_BUTTON_LOW(_BV(1),UI_ACTION_OK); // push button, connects gnd to pin UI_KEYS_I2C_BUTTON_LOW(_BV(3),UI_ACTION_BACK); // push button, connects gnd to pin UI_KEYS_I2C_BUTTON_LOW(_BV(4),UI_ACTION_MENU_QUICKSETTINGS); // push button, connects gnd to pin UI_KEYS...
BUTTON_SubScan(&State[3], &Count[3], GPIO_ReadInputDataBit(GPIOB, GPIO_Pin_2), "SW5"); } 复制代码 SWITCH开关状态检测 SWITCH是一个4位的拨码开关,通过GPIO端口引脚的状态位来判断拨码开关所处的状态,实现代码和测试效果如下: void SWITCH_SubScan(uint8_t *State, uint8_t *Count, uint8_t Va...