Lyubomir Penev
0cc6f49130
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94 lines
2.0 KiB
C++
94 lines
2.0 KiB
C++
/**
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* @file commonFunctions.cpp
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* @author Lyubomir Penev (me@lpenev.com, 571147@student.fontys.nl)
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* @brief This file contains all the functions used to read buttons
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* @version 0.1
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* @date 2025-10-31
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*
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* @copyright Copyright (c) 2025
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*
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*/
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#include <Arduino.h>
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#include <commonFunctions.h>
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#include <constants.h>
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/**
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* @brief Function used to read state of a normally open(LOW) button
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*
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* @param buttonPin The pin of the button
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* @return true
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* @return false
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*/
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bool Reader::debounceReadNO(int buttonPin)
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{
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bool reading = digitalRead(buttonPin);
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if (reading)
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{
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lastPin = buttonPin;
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}
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bool buttonPressed = false;
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if (reading != lastButtonStateNO && lastPin == buttonPin)
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{
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lastDebounceTime = millis(); // reset debounce timer
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}
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if ((millis() - lastDebounceTime) > DEBOUNCE_DELAY)
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{
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// If button state is stable and just changed to pressed
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if (reading == HIGH && buttonStateNO == LOW)
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{
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buttonPressed = true;
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}
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buttonStateNO = reading;
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}
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if (lastPin == buttonPin)
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{
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lastButtonStateNO = reading;
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}
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return buttonPressed;
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}
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/**
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* @brief Function used to read state of a normally closed(HIGH) button
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*
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* @param buttonPin The pin of the button
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* @return true
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* @return false
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*/
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bool Reader::debounceReadNC(int buttonPin)
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{
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bool reading = digitalRead(buttonPin);
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if (reading == LOW)
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{
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lastPin = buttonPin;
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}
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bool buttonPressed = false;
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if (reading != lastButtonStateNC && lastPin == buttonPin)
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{
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lastDebounceTime = millis(); // reset debounce timer
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}
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if ((millis() - lastDebounceTime) > DEBOUNCE_DELAY)
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{
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// If button state is stable and just changed to pressed
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if (reading == LOW && buttonStateNC == HIGH)
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{
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buttonPressed = true;
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}
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buttonStateNC = reading;
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}
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if (lastPin == buttonPin)
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{
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lastButtonStateNC = reading;
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}
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return buttonPressed;
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} |