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Refactor algorithm to dynamically adjust to faster/slower processors. Fix #35 #30.

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Tony DiCola
2015-06-26 15:14:17 -07:00
parent a67e1a7e06
commit 9d7a9da8ae
4 changed files with 196 additions and 141 deletions
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101
DHT.h
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@@ -1,41 +1,60 @@
#ifndef DHT_H
#define DHT_H
#if ARDUINO >= 100
#include "Arduino.h"
#else
#include "WProgram.h"
#endif
/* DHT library
MIT license
written by Adafruit Industries
*/
// how many timing transitions we need to keep track of. 2 * number bits + extra
#define MAXTIMINGS 85
#define DHT11 11
#define DHT22 22
#define DHT21 21
#define AM2301 21
class DHT {
private:
uint8_t data[6];
uint8_t _pin, _type, _count;
unsigned long _lastreadtime;
boolean firstreading;
public:
DHT(uint8_t pin, uint8_t type, uint8_t count=6);
void begin(void);
float readTemperature(bool S=false);
float convertCtoF(float);
float convertFtoC(float);
float computeHeatIndex(float tempFahrenheit, float percentHumidity);
float readHumidity(void);
boolean read(void);
};
#endif
/* DHT library
MIT license
written by Adafruit Industries
*/
#ifndef DHT_H
#define DHT_H
#if ARDUINO >= 100
#include "Arduino.h"
#else
#include "WProgram.h"
#endif
// Uncomment to enable printing out nice debug messages.
//#define DHT_DEBUG
// Define where debug output will be printed.
#define DEBUG_PRINTER Serial
// Setup debug printing macros.
#ifdef DHT_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 types of sensors.
#define DHT11 11
#define DHT22 22
#define DHT21 21
#define AM2301 21
class DHT {
public:
DHT(uint8_t pin, uint8_t type, uint8_t count=6);
void begin(void);
float readTemperature(bool S=false);
float convertCtoF(float);
float convertFtoC(float);
float computeHeatIndex(float tempFahrenheit, float percentHumidity);
float readHumidity(void);
boolean read(void);
private:
uint8_t data[6];
uint8_t _pin, _type;
uint32_t _lastreadtime;
bool _firstreading;
bool _lastresult;
uint32_t expectPulse(bool level);
};
#endif