GY-63_MS5611/libraries/TCA9548/TCA9548.h
2021-12-28 17:25:47 +01:00

64 lines
1.5 KiB
C++

#pragma once
//
// FILE: TCA9548.h
// AUTHOR: Rob Tillaart
// VERSION: 0.1.2
// DATE: 2021-03-16
// PURPOSE: Library for TCA9548 I2C multiplexer
//
// URL: https://github.com/RobTillaart/TCA9548
//
#include "Arduino.h"
#include "Wire.h"
#define TCA9548_LIB_VERSION (F("0.1.2"))
class TCA9548
{
public:
// address = 0x70 .. 0x77
TCA9548(const uint8_t deviceAddress, TwoWire *wire = &Wire);
#if defined (ESP8266) || defined(ESP32)
bool begin(uint8_t sda, uint8_t scl, uint8_t mask = 0x00); // default no channels enabled
#endif
bool begin(uint8_t mask = 0x00); // default no channels enabled
bool isConnected(); // find multiplexer on I2C bus
bool isConnected(uint8_t address); // find any address on I2C bus
// channel = 0.. 7
void enableChannel(uint8_t channel);
void disableChannel(uint8_t channel);
void selectChannel(uint8_t channel); // enable only this channel
bool isEnabled(uint8_t channel);
// mask = 0x00 .. 0xFF - every bit is a channel.
void setChannelMask(uint8_t mask);
uint8_t getChannelMask();
void setResetPin(uint8_t resetPin);
void reset(); // trigger reset pin
// set forced IO (default false)
void setForced(bool forced = false) { _forced = forced; };
bool getForced() { return _forced; };
int getError();
private:
uint8_t _mask; // caching mask
uint8_t _resetPin;
int _error;
uint8_t _address;
TwoWire* _wire;
bool _forced;
};
// -- END OF FILE --