GY-63_MS5611/libraries/HC4053/HC4053.h
2023-11-04 14:19:51 +01:00

140 lines
2.1 KiB
C++

#pragma once
//
// FILE: HC4053.h
// AUTHOR: Rob Tillaart
// DATE: 2023-01-25
// VERSION: 0.1.1
// PURPOSE: Arduino library for CD74HC4053 8 channel multiplexer and compatibles.
// URL: https://github.com/RobTillaart/HC4053
#include "Arduino.h"
#define HC4053_LIB_VERSION (F("0.1.1"))
class HC4053
{
public:
explicit HC4053(uint8_t A, uint8_t B, uint8_t C, uint8_t enablePin = 255)
{
_pins[0] = A;
_pins[1] = B;
_pins[2] = C;
uint8_t i = 3;
while (i--)
{
pinMode(_pins[i], OUTPUT);
digitalWrite(_pins[i], LOW);
}
// two states only (could be one byte)
_channelA = 0;
_channelB = 0;
_channelC = 0;
if (enablePin != 255)
{
_enablePin = enablePin;
pinMode(_enablePin, OUTPUT);
digitalWrite(_enablePin, HIGH);
}
}
void setChannel(uint8_t channel)
{
setChannelA(channel);
setChannelB(channel);
setChannelC(channel);
}
void setChannelA(uint8_t channel)
{
if (_channelA != (channel & 0x01))
{
_channelA = channel & 0x01;
digitalWrite(_pins[0], _channelA);
}
}
void setChannelB(uint8_t channel)
{
if (_channelB != (channel & 0x01))
{
_channelB = channel & 0x01;
digitalWrite(_pins[1], _channelB);
}
}
void setChannelC(uint8_t channel)
{
if (_channelC != (channel & 0x01))
{
_channelC = channel & 0x01;
digitalWrite(_pins[2], _channelC);
}
}
uint8_t getChannelA()
{
return _channelA;
}
uint8_t getChannelB()
{
return _channelB;
}
uint8_t getChannelC()
{
return _channelC;
}
void enable()
{
if (_enablePin != 255)
{
digitalWrite(_enablePin, LOW);
}
}
void disable()
{
if (_enablePin != 255)
{
digitalWrite(_enablePin, HIGH);
}
}
bool isEnabled()
{
if (_enablePin != 255)
{
return (digitalRead(_enablePin) == LOW);
}
return true;
}
private:
uint8_t _pins[3];
uint8_t _enablePin = 255;
uint8_t _channelA = 0;
uint8_t _channelB = 0;
uint8_t _channelC = 0;
};
// -- END OF FILE --