DS18B20.h

 
#ifndef ds18b20_h
#define ds18b20_h
#define NAN 0x7fffffff
#ifndef DS18B20_CHANNELS
#define DS18B20_CHANNELS 16
#endif
// Device resolution
#define TEMP_9_BIT  0x1F //  9 bit
#define TEMP_10_BIT 0x3F // 10 bit
#define TEMP_11_BIT 0x5F // 11 bit
#define TEMP_12_BIT 0x7F // 12 bit
 
#include <OneWire.h>
#include <inttypes.h>
#include <EEPROM.h>
#include <WString.h>
 
 
 
class DS18B20 : protected OneWire{
public:
    DS18B20(uint8_t pin,uint8_t channel_offset=0,uint8_t ds18b20_channels=DS18B20_CHANNELS);
 
 
    ~DS18B20() { free(_addr); }
 
 
 
    void t_conversion(void);
 
    void setResolution(uint8_t newResolution);
 
    const uint8_t* search(void);
 
    uint8_t checkSensors(void);
 
    uint8_t getNextChannel(void);
 
    uint8_t addSensor(const uint8_t* new_addr,uint8_t channel);
 
    uint8_t getNextFreeChannel(void);
 
    uint8_t getChannel(const uint8_t* addr);
 
    const uint8_t* getChannelAddress(uint8_t channel) const;
 
    uint8_t deleteChannel(const uint8_t* addr);
 
    uint8_t readChannel(uint8_t channel,float* f,uint8_t tries=1);
 
    uint8_t readAddrFromEEPROM(uint8_t channel);
 
    uint8_t setAllAddrFromEEPROM(void);
 
    int setAllAddr(void);
  
    void writeAddrToEEPROM(uint8_t channel);
 
    const String addr2String(const uint8_t* addr);
 
 
    uint8_t getNumberOfChannels(void);
 
 
private:
    uint8_t _channel_offset;
    uint8_t _ds18b20_channels;
    uint8_t* _addr;
    uint8_t _new_addr[8];
    uint8_t _data[12];
    uint8_t _current_channel;
 
};
 
 
 
#endif