GY-63_MS5611/libraries/AnalogKeypad/AnalogKeypad.h
2023-10-17 14:54:53 +02:00

53 lines
1.0 KiB
C++

#pragma once
//
// FILE: AnalogKeypad.h
// AUTHOR: Rob Tillaart
// VERSION: 0.2.4
// DATE: 2019-01-31
// PURPOSE: Class for (Robotdyn) 4x4 and 4x3 analogue keypad
// URL: https://github.com/RobTillaart/AnalogKeypad
#include "Arduino.h"
#define ANALOGKEYPAD_LIB_VERSION (F("0.2.4"))
#define NOKEY 0x00
#define PRESSED 0x80
#define RELEASED 0x40
#define REPEATED 0x20
#define CHANGED 0x10
class AnalogKeypad
{
public:
explicit AnalogKeypad(const uint8_t pin, const uint8_t bits = 10);
// returns 0 if no key pressed
// otherwise returns key pressed first => ignoring fluctuations
// 2nd or more presses simultaneous are ignored
uint8_t pressed();
// returns 0 if no key pressed
// otherwise returns key pressed (may fluctuate)
uint8_t read();
// event alike approach
// switch(int e = event()) see examples
uint8_t event();
uint8_t key();
private:
uint8_t _rawRead();
uint8_t _analogPin;
uint8_t _analogShift;
uint8_t _lastKey;
};
// -- END OF FILE --