Temp and Humidity sensor device driver. had to fork under a new name, don't know why yet.
Dependents: Wio-example-SORACOM-Harvest
Diff: DHT.h
- Revision:
- 6:49350e4b126d
- Parent:
- 5:28eb2ec7c6d6
- Child:
- 8:4a66ebac2a2c
--- a/DHT.h Thu Feb 21 13:03:47 2019 -0400 +++ b/DHT.h Wed May 08 13:47:41 2019 -0400 @@ -1,14 +1,15 @@ -/* - * DHT Library for Digital-output Humidity and Temperature sensors - * +/* + * DHT Library for Digital-output Humidity and Temperature sensors + * * Works with DHT11, DHT21, DHT22 * SEN11301P, Grove - Temperature&Humidity Sensor (Seeed Studio) * SEN51035P, Grove - Temperature&Humidity Sensor Pro (Seeed Studio) - * AM2302 , temperature-humidity sensor + * AM2302 , temperature-humidity sensor * RHT01,RHT02, RHT03 , Humidity and Temperature Sensor (Sparkfun) * - * Copyright (C) Wim De Roeve - * based on DHT22 sensor library by HO WING KIT + * Copyright (C) Luis Amell + * Based on AM2302/DHT22 sensor library by Wim De Roeve + * Based on DHT22 sensor library by HO WING KIT * Arduino DHT11 library * * Permission is hereby granted, free of charge, to any person obtaining a copy @@ -35,47 +36,46 @@ #include "mbed.h" -typedef enum eType { - DHT11 = 11, - SEN11301P = 11, - RHT01 = 11, - DHT22 = 22, - AM2302 = 22, - SEN51035P = 22, - RHT02 = 22, - RHT03 = 22 -} eType; +enum eType{ + DHT11 = 11, + SEN11301P = 11, + RHT01 = 11, + DHT22 = 22, + AM2302 = 22, + SEN51035P = 22, + RHT02 = 22, + RHT03 = 22 + } ; -typedef enum eError { +enum eError { ERROR_NONE = 0, - BUS_BUSY, - ERROR_NOT_PRESENT, - ERROR_ACK_TOO_LONG, - ERROR_SYNC_TIMEOUT, - ERROR_DATA_TIMEOUT, - ERROR_CHECKSUM, - ERROR_NO_PATIENCE -} eError; + BUS_BUSY =1, + ERROR_NOT_PRESENT =2 , + ERROR_ACK_TOO_LONG =3 , + ERROR_SYNC_TIMEOUT = 4, + ERROR_DATA_TIMEOUT =5 , + ERROR_CHECKSUM = 6, + ERROR_NO_PATIENCE =7 +} ; -typedef enum eScale { - CELCIUS = 0, - FARENHEIT, - KELVIN +typedef enum { + CELCIUS =0 , + FARENHEIT =1, + KELVIN=2 } eScale; -class DHT -{ +class DHT { public: - DHT(PinName pin, eType DHTtype); + DHT(PinName pin,int DHTtype); ~DHT(); - eError readData(void); + int readData(void); float ReadHumidity(void); - float ReadTemperature(eScale const Scale); - float CalcdewPoint(float const celsius, float const humidity); - float CalcdewPointFast(float const celsius, float const humidity); + float ReadTemperature(eScale Scale); + float CalcdewPoint(float celsius, float humidity); + float CalcdewPointFast(float celsius, float humidity); private: time_t _lastReadTime; @@ -83,13 +83,12 @@ float _lastHumidity; PinName _pin; bool _firsttime; - eType _DHTtype; - uint8_t DHT_data[5]; + int _DHTtype; + int DHT_data[6]; float CalcTemperature(); float CalcHumidity(); - float ConvertCelciustoFarenheit(float const); - float ConvertCelciustoKelvin(float const); - eError stall(DigitalInOut &io, int const level, int const max_time); + float ConvertCelciustoFarenheit(float); + float ConvertCelciustoKelvin(float); };