mirror of
https://github.com/xreef/PCF8574_library.git
synced 2024-08-30 18:12:18 +00:00
102 lines
2.0 KiB
C++
102 lines
2.0 KiB
C++
/** \mainpage Thermistor library
|
|
*
|
|
* MIT license
|
|
* written by Renzo Mischianti
|
|
*/
|
|
|
|
#ifndef Thermistor_h
|
|
#define Thermistor_h
|
|
|
|
#include "Wire.h"
|
|
|
|
#if ARDUINO >= 100
|
|
#include "Arduino.h"
|
|
#else
|
|
#include "WProgram.h"
|
|
#endif
|
|
|
|
// Uncomment to enable printing out nice debug messages.
|
|
// #define PCF8574_DEBUG
|
|
|
|
// Define where debug output will be printed.
|
|
#define DEBUG_PRINTER Serial
|
|
|
|
// Setup debug printing macros.
|
|
#ifdef PCF8574_DEBUG
|
|
#define DEBUG_PRINT(...) { DEBUG_PRINTER.print(__VA_ARGS__); }
|
|
#define DEBUG_PRINTLN(...) { DEBUG_PRINTER.println(__VA_ARGS__); }
|
|
#else
|
|
#define DEBUG_PRINT(...) {}
|
|
#define DEBUG_PRINTLN(...) {}
|
|
#endif
|
|
|
|
#define READ_ELAPSED_TIME 10
|
|
|
|
//#define P0 B00000001
|
|
//#define P1 B00000010
|
|
//#define P2 B00000100
|
|
//#define P3 B00001000
|
|
//#define P4 B00010000
|
|
//#define P5 B00100000
|
|
//#define P6 B01000000
|
|
//#define P7 B10000000
|
|
//
|
|
#define P0 0
|
|
#define P1 1
|
|
#define P2 2
|
|
#define P3 3
|
|
#define P4 4
|
|
#define P5 5
|
|
#define P6 6
|
|
#define P7 7
|
|
|
|
#include <math.h>
|
|
|
|
|
|
class PCF8574 {
|
|
public:
|
|
struct DigitalInput {
|
|
uint8_t p0;
|
|
uint8_t p1;
|
|
uint8_t p2;
|
|
uint8_t p3;
|
|
uint8_t p4;
|
|
uint8_t p5;
|
|
uint8_t p6;
|
|
uint8_t p7;
|
|
} digitalInput;
|
|
|
|
PCF8574(uint8_t address);
|
|
PCF8574(uint8_t address, uint8_t sda, uint8_t scl);
|
|
|
|
PCF8574(uint8_t address, uint8_t interruptPin, void (*interruptFunction)() );
|
|
PCF8574(uint8_t address, uint8_t sda, uint8_t scl, uint8_t interruptPin, void (*interruptFunction)());
|
|
|
|
void begin();
|
|
void pinMode(uint8_t pin, uint8_t mode);
|
|
|
|
void readBuffer(bool force = true);
|
|
uint8_t digitalRead(uint8_t pin);
|
|
DigitalInput digitalReadAll(void);
|
|
void digitalWrite(uint8_t pin, uint8_t value);
|
|
|
|
private:
|
|
uint8_t _address;
|
|
uint8_t _sda = SDA;
|
|
uint8_t _scl = SCL;
|
|
|
|
bool _usingInterrupt = false;
|
|
uint8_t _interruptPin = 2;
|
|
void (*_interruptFunction)(){};
|
|
|
|
byte writeMode = B00000000;
|
|
byte readMode = B00000000;
|
|
byte byteBuffered = B00000000;
|
|
unsigned long lastReadMillis = 0;
|
|
|
|
byte writeByteBuffered = B00000000;
|
|
|
|
};
|
|
|
|
#endif
|