if ((currentMillis - debounceMillis) > debouncePeriod && buttonPushed) // 产生 20ms 的去抖延迟以避免多次按下 { debounceMillis = currentMillis; // 保存最后的去抖动延迟时间 if (digitalRead(pushButton) == LOW && lastState == HIGH) // 按下按钮后改变LED { ledChange = ! 领导改变; digitalW...
digitalPinToInterrupt(pushButton), pushButton_ISR, CHANGE);复制代码写入中断子程序，它只会改变button...
Support to measure maximum bouncing period of a button. See DebounceTest example. Button 1 can used at any pin supporting pin change interrupt. The exact pin numbers of the buttons are available by the macros INT0_PIN and INT1_PIN, which are set after the include.Table...
int debouncePeriod = 20; // debounce delay of 20ms int debounceMillis = 0; // similar to previousMillis bool buttonPushed = false; // interrupt routine button status int ledChange = LOW; // to track the led status last int lastState = HIGH; // to track last button state void setup...
(SLEEP_MODE_PWR_DOWN);// 某些AVR芯片需要这个设置,attiny13A默认就是power down模式// 定义中断事件,按钮按下后,触发PB1的RISING事件,进而唤醒CPU调用button_pressed函数attachInterrupt(digitalPinToInterrupt(BUTTON),button_pressed,RISING);}voidbutton_pressed(){// 当按钮动作时记录当时的时间,并返回到loop函数...
if (digitalRead(buttonPin) == LOW) { // Switch was pressed // Slight delay to debounce delay(200); // Change state of toggle toggleState = !toggleState; // Indicate state on LED digitalWrite(ledPin,toggleState); } } void setup() { ...
DailyStruggleButton is yet another Arduino library to debounce button (push tactile switch) and manage its events. Events supported include pressing, releasing, holding down, long pressing (hold button for x time) and multi-hitting (hit button x times in y time). For simplicity, there is only...
delay(100); // Wait for button debounce digitalWrite(ledPin, LOW); // Turn off LED STM32...
First action: handling the push button. byte readValue =digitalRead(BUTTON_PIN); if(readValue != lastButtonState){ lastButtonDebounceTime =millis(); } if(millis()- lastButtonDebounceTime>buttonDebounceDelay){ if(readValue != currentButtonState){ ...
And remember that no software debouncing can prevent hardware interrupts from firing. You can debounce a GPIO input button in software but not external hardware interrupts, unfortunately. This requires only hardware debouncing techniques. ESP32 Interrupt Latency Measurement – LAB ...