firmware/ButtonReader_8h_source.html

#ifndef HUMIDISTAT_BUTTONREADER_H

#define HUMIDISTAT_BUTTONREADER_H


#include <stdint.h>


#include "aliases.h"

#include "Buttons.h"


class ButtonReader {

private:

    const VoltLadder &voltLadder;

    uint8_t pin_btn;


    Buttons lastState = Buttons::NONE;

    unsigned long pressedSince = 0;

public:

    explicit ButtonReader(uint8_t pin_btn, const VoltLadder *voltLadder);


    void sample();


    Buttons isPressed() const;


    uint32_t getPressedFor() const;

};


#endif //HUMIDISTAT_BUTTONREADER_H

Buttons.h

Buttons
Buttons
Possible button values.
Definition Buttons.h:5

Buttons::NONE
@ NONE

aliases.h

ButtonReader
Read button state from a voltage ladder-style keypad.
Definition ButtonReader.h:10

ButtonReader::pin_btn
uint8_t pin_btn
Pin corresponding to the keypad.
Definition ButtonReader.h:13

ButtonReader::getPressedFor
uint32_t getPressedFor() const
Get the duration the key has been pressed. This can be used for debouncing using a stable interval.
Definition ButtonReader.cpp:18

ButtonReader::isPressed
Buttons isPressed() const
Get the button state.
Definition ButtonReader.cpp:14

ButtonReader::ButtonReader
ButtonReader(uint8_t pin_btn, const VoltLadder *voltLadder)
Constructor.
Definition ButtonReader.cpp:4

ButtonReader::pressedSince
unsigned long pressedSince
Time of the start of the keypress (in micros)
Definition ButtonReader.h:16

ButtonReader::sample
void sample()
Sample the button signal. Call this in the main loop.
Definition ButtonReader.cpp:6

ButtonReader::voltLadder
const VoltLadder & voltLadder
Reference to a voltLadder instance.
Definition ButtonReader.h:12

ButtonReader::lastState
Buttons lastState
Last sampled state of the keypad.
Definition ButtonReader.h:15