GY-63_MS5611/libraries/AD5246/AD5246.cpp
2023-09-21 21:48:42 +02:00

93 lines
1.4 KiB
C++

//
// FILE: AD5246.cpp
// AUTHOR: Rob Tillaart
// VERSION: 0.1.1
// PURPOSE: Arduino Library for AD5246, I2C 128 step rheostat.
// DATE: 2023-08-02
// URL: https://github.com/RobTillaart/AD5246
#include "AD5246.h"
AD5246::AD5246(TwoWire *wire)
{
// fixed address 0x2E.
_wire = wire;
_lastValue = AD5246_MIDPOINT; // power on reset => mid position
}
#if defined (ESP8266) || defined(ESP32)
bool AD5246::begin(uint8_t dataPin, uint8_t clockPin)
{
if ((dataPin < 255) && (clockPin < 255))
{
_wire->begin(dataPin, clockPin);
} else {
_wire->begin();
}
if (! isConnected()) return false;
reset();
return true;
}
#endif
bool AD5246::begin()
{
_wire->begin();
if (! isConnected()) return false;
reset();
return true;
}
bool AD5246::isConnected()
{
_wire->beginTransmission(_address);
return ( _wire->endTransmission() == 0);
}
uint8_t AD5246::reset()
{
return write(AD5246_MIDPOINT);
}
uint8_t AD5246::write(uint8_t value)
{
if (value > 127) value = 127;
_lastValue = value;
return send(value);
}
uint8_t AD5246::read()
{
return _lastValue;
}
uint8_t AD5246::readDevice()
{
_wire->requestFrom(_address, (uint8_t)1);
return _wire->read();
}
//////////////////////////////////////////////////////////
//
// PRIVATE
//
uint8_t AD5246::send(const uint8_t value)
{
_wire->beginTransmission(_address);
_wire->write(value);
return _wire->endTransmission();
}
// -- END OF FILE --