Mengzhe Yang / Mbed 2 deprecated DHT490

concordia

Dependencies:   mbed

DHT.h@0:1d0724ab888b, 2017-03-07 (annotated)

Committer:
urietony
Date:
Tue Mar 07 00:38:17 2017 +0000
Revision:
0:1d0724ab888b
lalala

Who changed what in which revision?

UserRevisionLine numberNew contents of line
urietony 0:1d0724ab888b 1 /*
urietony 0:1d0724ab888b 2 * DHT Library for Digital-output Humidity and Temperature sensors
urietony 0:1d0724ab888b 3 *
urietony 0:1d0724ab888b 4 * Works with DHT11, DHT21, DHT22
urietony 0:1d0724ab888b 5 * SEN11301P, Grove - Temperature&Humidity Sensor (Seeed Studio)
urietony 0:1d0724ab888b 6 * SEN51035P, Grove - Temperature&Humidity Sensor Pro (Seeed Studio)
urietony 0:1d0724ab888b 7 * AM2302 , temperature-humidity sensor
urietony 0:1d0724ab888b 8 * RHT01,RHT02, RHT03 , Humidity and Temperature Sensor (Sparkfun)
urietony 0:1d0724ab888b 9 *
urietony 0:1d0724ab888b 10 * Copyright (C) Wim De Roeve
urietony 0:1d0724ab888b 11 * based on DHT22 sensor library by HO WING KIT
urietony 0:1d0724ab888b 12 * Arduino DHT11 library
urietony 0:1d0724ab888b 13 *
urietony 0:1d0724ab888b 14 * Permission is hereby granted, free of charge, to any person obtaining a copy
urietony 0:1d0724ab888b 15 * of this software and associated documnetation files (the "Software"), to deal
urietony 0:1d0724ab888b 16 * in the Software without restriction, including without limitation the rights
urietony 0:1d0724ab888b 17 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
urietony 0:1d0724ab888b 18 * copies of the Software, and to permit persons to whom the Software is
urietony 0:1d0724ab888b 19 * furished to do so, subject to the following conditions:
urietony 0:1d0724ab888b 20 *
urietony 0:1d0724ab888b 21 * The above copyright notice and this permission notice shall be included in
urietony 0:1d0724ab888b 22 * all copies or substantial portions of the Software.
urietony 0:1d0724ab888b 23 *
urietony 0:1d0724ab888b 24 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
urietony 0:1d0724ab888b 25 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
urietony 0:1d0724ab888b 26 * FITNESS OR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
urietony 0:1d0724ab888b 27 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
urietony 0:1d0724ab888b 28 * LIABILITY WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
urietony 0:1d0724ab888b 29 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
urietony 0:1d0724ab888b 30 * THE SOFTWARE.
urietony 0:1d0724ab888b 31 */
urietony 0:1d0724ab888b 32
urietony 0:1d0724ab888b 33 #ifndef MBED_DHT_H
urietony 0:1d0724ab888b 34 #define MBED_DHT_H
urietony 0:1d0724ab888b 35
urietony 0:1d0724ab888b 36 #include "mbed.h"
urietony 0:1d0724ab888b 37
urietony 0:1d0724ab888b 38 enum eType{
urietony 0:1d0724ab888b 39 DHT11 = 11,
urietony 0:1d0724ab888b 40 SEN11301P = 11,
urietony 0:1d0724ab888b 41 RHT01 = 11,
urietony 0:1d0724ab888b 42 DHT22 = 22,
urietony 0:1d0724ab888b 43 AM2302 = 22,
urietony 0:1d0724ab888b 44 SEN51035P = 22,
urietony 0:1d0724ab888b 45 RHT02 = 22,
urietony 0:1d0724ab888b 46 RHT03 = 22
urietony 0:1d0724ab888b 47 } ;
urietony 0:1d0724ab888b 48
urietony 0:1d0724ab888b 49 enum eError {
urietony 0:1d0724ab888b 50 ERROR_NONE = 0,
urietony 0:1d0724ab888b 51 BUS_BUSY =1,
urietony 0:1d0724ab888b 52 ERROR_NOT_PRESENT =2 ,
urietony 0:1d0724ab888b 53 ERROR_ACK_TOO_LONG =3 ,
urietony 0:1d0724ab888b 54 ERROR_SYNC_TIMEOUT = 4,
urietony 0:1d0724ab888b 55 ERROR_DATA_TIMEOUT =5 ,
urietony 0:1d0724ab888b 56 ERROR_CHECKSUM = 6,
urietony 0:1d0724ab888b 57 ERROR_NO_PATIENCE =7
urietony 0:1d0724ab888b 58 } ;
urietony 0:1d0724ab888b 59
urietony 0:1d0724ab888b 60 typedef enum {
urietony 0:1d0724ab888b 61 CELCIUS =0 ,
urietony 0:1d0724ab888b 62 FARENHEIT =1,
urietony 0:1d0724ab888b 63 KELVIN=2
urietony 0:1d0724ab888b 64 } eScale;
urietony 0:1d0724ab888b 65
urietony 0:1d0724ab888b 66
urietony 0:1d0724ab888b 67 class DHT {
urietony 0:1d0724ab888b 68
urietony 0:1d0724ab888b 69 public:
urietony 0:1d0724ab888b 70
urietony 0:1d0724ab888b 71 DHT(PinName pin,int DHTtype);
urietony 0:1d0724ab888b 72 ~DHT();
urietony 0:1d0724ab888b 73 int readData(void);
urietony 0:1d0724ab888b 74 float ReadHumidity(void);
urietony 0:1d0724ab888b 75 float ReadTemperature(eScale Scale);
urietony 0:1d0724ab888b 76 float CalcdewPoint(float celsius, float humidity);
urietony 0:1d0724ab888b 77 float CalcdewPointFast(float celsius, float humidity);
urietony 0:1d0724ab888b 78
urietony 0:1d0724ab888b 79 private:
urietony 0:1d0724ab888b 80 time_t _lastReadTime;
urietony 0:1d0724ab888b 81 float _lastTemperature;
urietony 0:1d0724ab888b 82 float _lastHumidity;
urietony 0:1d0724ab888b 83 PinName _pin;
urietony 0:1d0724ab888b 84 bool _firsttime;
urietony 0:1d0724ab888b 85 int _DHTtype;
urietony 0:1d0724ab888b 86 int DHT_data[6];
urietony 0:1d0724ab888b 87 float CalcTemperature();
urietony 0:1d0724ab888b 88 float CalcHumidity();
urietony 0:1d0724ab888b 89 float ConvertCelciustoFarenheit(float);
urietony 0:1d0724ab888b 90 float ConvertCelciustoKelvin(float);
urietony 0:1d0724ab888b 91
urietony 0:1d0724ab888b 92 };
urietony 0:1d0724ab888b 93
urietony 0:1d0724ab888b 94 #endif