/* MHZ library By Tobias Schürg */ #ifndef MHZ_H #define MHZ_H #if ARDUINO >= 100 #include "Arduino.h" #else #include "WProgram.h" #endif #include // types of sensors. extern const int MHZ14A; extern const int MHZ19B; // status codes extern const int STATUS_NO_RESPONSE; extern const int STATUS_CHECKSUM_MISMATCH; extern const int STATUS_INCOMPLETE; extern const int STATUS_NOT_READY; class MHZ { public: MHZ(uint8_t rxpin, uint8_t txpin, uint8_t pwmpin, uint8_t type); MHZ(Stream * serial, uint8_t pwmpin, uint8_t type); void setDebug(boolean enable); boolean isPreHeating(); boolean isReady(); int readCO2UART(); int readCO2PWM(); uint8_t getLastTemperature(); private: uint8_t _pwmpin, _type, temperature; boolean debug = false; Stream * _serial; byte getCheckSum(byte *packet); }; #endif