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button.h
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button.h
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#define DEBOUNCE_DELAY 50
#define LONG_CLICK_TIME 1500
#define BUZZER_PIN 18
class ButtonHandler {
private:
uint8_t buttonPin;
bool buttonState;
bool lastButtonState;
unsigned long lastDebounceTime;
unsigned long buttonPressTime;
bool longClickReported;
public:
ButtonHandler(uint8_t pin) {
buttonPin = pin;
pinMode(buttonPin, INPUT_PULLUP);
pinMode(BUZZER_PIN, OUTPUT);
buttonState = HIGH;
lastButtonState = HIGH;
lastDebounceTime = 0;
buttonPressTime = 0;
longClickReported = false;
}
int checkButton() {
int event = 0;
bool reading = digitalRead(buttonPin);
if (reading != lastButtonState) {
lastDebounceTime = millis();
}
if ((millis() - lastDebounceTime) > DEBOUNCE_DELAY) {
if (reading != buttonState) {
buttonState = reading;
if (buttonState == LOW) {
buttonPressTime = millis();
digitalWrite(BUZZER_PIN, HIGH);
longClickReported = false;
}
else {
digitalWrite(BUZZER_PIN, LOW);
if (!longClickReported) {
event = 1;
}
}
}
}
if (buttonState == LOW && (millis() - buttonPressTime) >= LONG_CLICK_TIME) {
if (!longClickReported) {
longClickReported = true;
event = 2;
digitalWrite(BUZZER_PIN, LOW);
}
}
lastButtonState = reading;
return event;
}
};