#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; boolean read(void); unsigned long _lastreadtime; boolean firstreading; public: DHT(uint8_t pin, uint8_t type); void begin(void); float readTemperature(bool S=false); float convertCtoF(float); float readHumidity(void); };