26 lines
639 B
C++
26 lines
639 B
C++
volatile unsigned long lastButtonPress = millis();
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void initButton() {
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pinMode(BUTTON_PIN, INPUT_PULLUP);
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// Order of ISRs matter: RISING should be invoked first
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attachInterrupt(digitalPinToInterrupt(BUTTON_PIN), buttonISRtime, CHANGE);
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attachInterrupt(digitalPinToInterrupt(BUTTON_PIN), buttonISRstate, RISING);
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}
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void buttonISRstate() {
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if ((millis() - lastButtonPress) > 100) {
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if (countdown < 0)
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countdown = 0;
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else if (countdown == 0)
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countdown = COUNTDOWN;
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else {
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countdown = -1;
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digitalWrite(BUTTON_LED_PIN, LOW);
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}
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}
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}
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void buttonISRtime() {
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lastButtonPress = millis();
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}
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