FRA221_2015 / Mbed 2 deprecated Taebox

B16

Dependencies:   mbed

DHT.h@0:b0ed3674f5b2, 2015-12-09 (annotated)

Committer:
57340500084
Date:
Wed Dec 09 02:50:22 2015 +0000
Revision:
0:b0ed3674f5b2
16B

Who changed what in which revision?

UserRevisionLine numberNew contents of line
57340500084 0:b0ed3674f5b2 1 /*
57340500084 0:b0ed3674f5b2 2 * DHT Library for Digital-output Humidity and Temperature sensors
57340500084 0:b0ed3674f5b2 3 *
57340500084 0:b0ed3674f5b2 4 * Works with DHT11, DHT21, DHT22
57340500084 0:b0ed3674f5b2 5 * SEN11301P, Grove - Temperature&Humidity Sensor (Seeed Studio)
57340500084 0:b0ed3674f5b2 6 * SEN51035P, Grove - Temperature&Humidity Sensor Pro (Seeed Studio)
57340500084 0:b0ed3674f5b2 7 * AM2302 , temperature-humidity sensor
57340500084 0:b0ed3674f5b2 8 * RHT01,RHT02, RHT03 , Humidity and Temperature Sensor (Sparkfun)
57340500084 0:b0ed3674f5b2 9 *
57340500084 0:b0ed3674f5b2 10 * Copyright (C) Wim De Roeve
57340500084 0:b0ed3674f5b2 11 * based on DHT22 sensor library by HO WING KIT
57340500084 0:b0ed3674f5b2 12 * Arduino DHT11 library
57340500084 0:b0ed3674f5b2 13 *
57340500084 0:b0ed3674f5b2 14 * Permission is hereby granted, free of charge, to any person obtaining a copy
57340500084 0:b0ed3674f5b2 15 * of this software and associated documnetation files (the "Software"), to deal
57340500084 0:b0ed3674f5b2 16 * in the Software without restriction, including without limitation the rights
57340500084 0:b0ed3674f5b2 17 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
57340500084 0:b0ed3674f5b2 18 * copies of the Software, and to permit persons to whom the Software is
57340500084 0:b0ed3674f5b2 19 * furished to do so, subject to the following conditions:
57340500084 0:b0ed3674f5b2 20 *
57340500084 0:b0ed3674f5b2 21 * The above copyright notice and this permission notice shall be included in
57340500084 0:b0ed3674f5b2 22 * all copies or substantial portions of the Software.
57340500084 0:b0ed3674f5b2 23 *
57340500084 0:b0ed3674f5b2 24 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
57340500084 0:b0ed3674f5b2 25 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
57340500084 0:b0ed3674f5b2 26 * FITNESS OR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
57340500084 0:b0ed3674f5b2 27 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
57340500084 0:b0ed3674f5b2 28 * LIABILITY WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
57340500084 0:b0ed3674f5b2 29 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
57340500084 0:b0ed3674f5b2 30 * THE SOFTWARE.
57340500084 0:b0ed3674f5b2 31 */
57340500084 0:b0ed3674f5b2 32
57340500084 0:b0ed3674f5b2 33 #ifndef MBED_DHT_H
57340500084 0:b0ed3674f5b2 34 #define MBED_DHT_H
57340500084 0:b0ed3674f5b2 35
57340500084 0:b0ed3674f5b2 36 #include "mbed.h"
57340500084 0:b0ed3674f5b2 37
57340500084 0:b0ed3674f5b2 38 enum eType{
57340500084 0:b0ed3674f5b2 39 DHT11 = 11,
57340500084 0:b0ed3674f5b2 40 SEN11301P = 11,
57340500084 0:b0ed3674f5b2 41 RHT01 = 11,
57340500084 0:b0ed3674f5b2 42 DHT22 = 22,
57340500084 0:b0ed3674f5b2 43 AM2302 = 22,
57340500084 0:b0ed3674f5b2 44 SEN51035P = 22,
57340500084 0:b0ed3674f5b2 45 RHT02 = 22,
57340500084 0:b0ed3674f5b2 46 RHT03 = 22
57340500084 0:b0ed3674f5b2 47 } ;
57340500084 0:b0ed3674f5b2 48
57340500084 0:b0ed3674f5b2 49 enum eError {
57340500084 0:b0ed3674f5b2 50 ERROR_NONE = 0,
57340500084 0:b0ed3674f5b2 51 BUS_BUSY =1,
57340500084 0:b0ed3674f5b2 52 ERROR_NOT_PRESENT =2 ,
57340500084 0:b0ed3674f5b2 53 ERROR_ACK_TOO_LONG =3 ,
57340500084 0:b0ed3674f5b2 54 ERROR_SYNC_TIMEOUT = 4,
57340500084 0:b0ed3674f5b2 55 ERROR_DATA_TIMEOUT =5 ,
57340500084 0:b0ed3674f5b2 56 ERROR_CHECKSUM = 6,
57340500084 0:b0ed3674f5b2 57 ERROR_NO_PATIENCE =7
57340500084 0:b0ed3674f5b2 58 } ;
57340500084 0:b0ed3674f5b2 59
57340500084 0:b0ed3674f5b2 60 typedef enum {
57340500084 0:b0ed3674f5b2 61 CELCIUS =0 ,
57340500084 0:b0ed3674f5b2 62 FARENHEIT =1,
57340500084 0:b0ed3674f5b2 63 KELVIN=2
57340500084 0:b0ed3674f5b2 64 } eScale;
57340500084 0:b0ed3674f5b2 65
57340500084 0:b0ed3674f5b2 66
57340500084 0:b0ed3674f5b2 67 class DHT {
57340500084 0:b0ed3674f5b2 68
57340500084 0:b0ed3674f5b2 69 public:
57340500084 0:b0ed3674f5b2 70
57340500084 0:b0ed3674f5b2 71 DHT(PinName pin,int DHTtype);
57340500084 0:b0ed3674f5b2 72 ~DHT();
57340500084 0:b0ed3674f5b2 73 int readData(void);
57340500084 0:b0ed3674f5b2 74 float ReadHumidity(void);
57340500084 0:b0ed3674f5b2 75 float ReadTemperature(eScale Scale);
57340500084 0:b0ed3674f5b2 76 float CalcdewPoint(float celsius, float humidity);
57340500084 0:b0ed3674f5b2 77 float CalcdewPointFast(float celsius, float humidity);
57340500084 0:b0ed3674f5b2 78
57340500084 0:b0ed3674f5b2 79 private:
57340500084 0:b0ed3674f5b2 80 time_t _lastReadTime;
57340500084 0:b0ed3674f5b2 81 float _lastTemperature;
57340500084 0:b0ed3674f5b2 82 float _lastHumidity;
57340500084 0:b0ed3674f5b2 83 PinName _pin;
57340500084 0:b0ed3674f5b2 84 bool _firsttime;
57340500084 0:b0ed3674f5b2 85 int _DHTtype;
57340500084 0:b0ed3674f5b2 86 int DHT_data[6];
57340500084 0:b0ed3674f5b2 87 float CalcTemperature();
57340500084 0:b0ed3674f5b2 88 float CalcHumidity();
57340500084 0:b0ed3674f5b2 89 float ConvertCelciustoFarenheit(float);
57340500084 0:b0ed3674f5b2 90 float ConvertCelciustoKelvin(float);
57340500084 0:b0ed3674f5b2 91
57340500084 0:b0ed3674f5b2 92 };
57340500084 0:b0ed3674f5b2 93
57340500084 0:b0ed3674f5b2 94 #endif