home-automation/hardware/arduino/Plant_Monitor/ino/SHT1x.h

42 lines
1.1 KiB
C++

/**
* SHT1x Library
*
* Modified by Cyrille Medard de Chardon, Christophe Terfois for 3V3 Arduino Fio
*
* Copyright 2009 Jonathan Oxer <jon@oxer.com.au> / <www.practicalarduino.com>
* Based on previous work by:
* Maurice Ribble: <www.glacialwanderer.com/hobbyrobotics/?p=5>
* Wayne ?: <ragingreality.blogspot.com/2008/01/ardunio-and-sht15.html>
*
* Manages communication with SHT1x series (SHT10, SHT11, SHT15)
* temperature / humidity sensors from Sensirion (www.sensirion.com).
*/
#ifndef SHT1x_h
#define SHT1x_h
#if (ARDUINO >= 100)
#include <Arduino.h>
#else
#include <WProgram.h>
#endif
class SHT1x
{
public:
SHT1x(int dataPin, int clockPin);
float readHumidity();
float readTemperatureC();
float retrieveTemperatureC();
private:
int _dataPin;
int _clockPin;
float _temperatureC;
float readTemperatureRaw();
int shiftIn(int _dataPin, int _clockPin, int _numBits);
void sendCommandSHT(int _command, int _dataPin, int _clockPin);
void waitForResultSHT(int _dataPin);
int getData16SHT(int _dataPin, int _clockPin);
};
#endif