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44 lines
904 B
44 lines
904 B
4 years ago
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// Source: https://forum.arduino.cc/index.php?topic=14479.0
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#include "button.h"
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Button::Button(byte pin) {
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this->pin = pin;
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init();
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}
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void Button::init() {
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pinMode(pin, INPUT);
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}
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byte Button::getState() {
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byte event = 0;
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buttonVal = digitalRead(pin);
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// Button pressed down
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if (buttonVal == LOW && buttonLast == HIGH && (millis() - upTime) > debounce)
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{
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event = 1;
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downTime = millis();
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ignoreUp = false;
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}
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// Button released
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else if (buttonVal == HIGH && buttonLast == LOW && (millis() - downTime) > debounce)
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{
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if (not ignoreUp) upTime = millis();
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}
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// Test for hold
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if (buttonVal == LOW && (millis() - downTime) >= holdTime) {
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// Trigger "normal" hold
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event = 2;
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ignoreUp = true;
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// Trigger "long" hold
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if ((millis() - downTime) >= longHoldTime)
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{
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event = 3;
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}
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}
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buttonLast = buttonVal;
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return event;
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}
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