ESP32_ChinaDieselHeater_Con.../Arduino/BTCDieselHeater/keypad.h

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1,009 B
C++

#ifndef __BTC_KEYPAD_H__
#define __BTC_KEYPAD_H__
#include "stdint.h"
//void initKeyPad();
//uint8_t readKeys();
const uint8_t key_Left = 0x01;
const uint8_t key_Right = 0x02;
const uint8_t key_Centre = 0x04;
const uint8_t key_Up = 0x08;
const uint8_t key_Down = 0x10;
const uint8_t keyPressed = 0x20; // action flag
const uint8_t keyReleased = 0x40; // action flag
const uint8_t keyRepeat = 0x80; // action flag
class CKeyPad {
private:
void (*_keyCallback)(uint8_t event);
uint8_t _pins[5]; //0:L, 1:R, 2:C, 3:U, 4:D
// pin scanning usage
uint8_t _prevPins;
uint8_t _debouncedPins;
// handler usage
uint8_t _lastKey;
unsigned long _lastHoldTime;
unsigned long _holdTimeout;
uint8_t scanPins();
unsigned long _lastDebounceTime;
unsigned long _debounceDelay;
public:
CKeyPad();
void init(int Lkey, int Rkey, int Ckey, int Ukey, int Dkey);
uint8_t update();
void setCallback(void (*Callback)(uint8_t event));
};
extern CKeyPad KeyPad;
#endif