Jeremy Hammel / Mbed 2 deprecated ATT_Smart_Home

FRDM-K64F, Avnet M14A2A, Grove Shield, to create smart home system. In use with AT&Ts M2x & Flow.

Dependencies:   mbed FXOS8700CQ MODSERIAL

DHT.h@85:0cf65ceb4492, 2019-04-29 (annotated)

Committer:
jwhammel
Date:
Mon Apr 29 04:24:38 2019 +0000
Revision:
85:0cf65ceb4492
Parent:
84:fc8c9b39723a 
We have added an alarm trigger that gets sent to AT&T Flow.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
jwhammel 84:fc8c9b39723a 1 /*
jwhammel 84:fc8c9b39723a 2 * DHT Library for Digital-output Humidity and Temperature sensors
jwhammel 84:fc8c9b39723a 3 *
jwhammel 84:fc8c9b39723a 4 * Works with DHT11, DHT21, DHT22
jwhammel 84:fc8c9b39723a 5 * SEN11301P, Grove - Temperature&Humidity Sensor (Seeed Studio)
jwhammel 84:fc8c9b39723a 6 * SEN51035P, Grove - Temperature&Humidity Sensor Pro (Seeed Studio)
jwhammel 84:fc8c9b39723a 7 * AM2302 , temperature-humidity sensor
jwhammel 84:fc8c9b39723a 8 * RHT01,RHT02, RHT03 , Humidity and Temperature Sensor (Sparkfun)
jwhammel 84:fc8c9b39723a 9 *
jwhammel 84:fc8c9b39723a 10 * Copyright (C) Wim De Roeve
jwhammel 84:fc8c9b39723a 11 * based on DHT22 sensor library by HO WING KIT
jwhammel 84:fc8c9b39723a 12 * Arduino DHT11 library
jwhammel 84:fc8c9b39723a 13 *
jwhammel 84:fc8c9b39723a 14 * Permission is hereby granted, free of charge, to any person obtaining a copy
jwhammel 84:fc8c9b39723a 15 * of this software and associated documnetation files (the "Software"), to deal
jwhammel 84:fc8c9b39723a 16 * in the Software without restriction, including without limitation the rights
jwhammel 84:fc8c9b39723a 17 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
jwhammel 84:fc8c9b39723a 18 * copies of the Software, and to permit persons to whom the Software is
jwhammel 84:fc8c9b39723a 19 * furished to do so, subject to the following conditions:
jwhammel 84:fc8c9b39723a 20 *
jwhammel 84:fc8c9b39723a 21 * The above copyright notice and this permission notice shall be included in
jwhammel 84:fc8c9b39723a 22 * all copies or substantial portions of the Software.
jwhammel 84:fc8c9b39723a 23 *
jwhammel 84:fc8c9b39723a 24 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
jwhammel 84:fc8c9b39723a 25 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
jwhammel 84:fc8c9b39723a 26 * FITNESS OR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
jwhammel 84:fc8c9b39723a 27 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
jwhammel 84:fc8c9b39723a 28 * LIABILITY WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
jwhammel 84:fc8c9b39723a 29 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
jwhammel 84:fc8c9b39723a 30 * THE SOFTWARE.
jwhammel 84:fc8c9b39723a 31 */
jwhammel 84:fc8c9b39723a 32
jwhammel 84:fc8c9b39723a 33 #ifndef MBED_DHT_H
jwhammel 84:fc8c9b39723a 34 #define MBED_DHT_H
jwhammel 84:fc8c9b39723a 35
jwhammel 84:fc8c9b39723a 36 #include "mbed.h"
jwhammel 84:fc8c9b39723a 37
jwhammel 84:fc8c9b39723a 38 typedef enum eType eType;
jwhammel 84:fc8c9b39723a 39 enum eType {
jwhammel 84:fc8c9b39723a 40 DHT11 = 11,
jwhammel 84:fc8c9b39723a 41 SEN11301P = 11,
jwhammel 84:fc8c9b39723a 42 RHT01 = 11,
jwhammel 84:fc8c9b39723a 43 DHT22 = 22,
jwhammel 84:fc8c9b39723a 44 AM2302 = 22,
jwhammel 84:fc8c9b39723a 45 SEN51035P = 22,
jwhammel 84:fc8c9b39723a 46 RHT02 = 22,
jwhammel 84:fc8c9b39723a 47 RHT03 = 22
jwhammel 84:fc8c9b39723a 48 };
jwhammel 84:fc8c9b39723a 49
jwhammel 84:fc8c9b39723a 50 typedef enum eError eError;
jwhammel 84:fc8c9b39723a 51 enum eError {
jwhammel 84:fc8c9b39723a 52 ERROR_NONE = 0,
jwhammel 84:fc8c9b39723a 53 BUS_BUSY,
jwhammel 84:fc8c9b39723a 54 ERROR_NOT_PRESENT,
jwhammel 84:fc8c9b39723a 55 ERROR_ACK_TOO_LONG,
jwhammel 84:fc8c9b39723a 56 ERROR_SYNC_TIMEOUT,
jwhammel 84:fc8c9b39723a 57 ERROR_DATA_TIMEOUT,
jwhammel 84:fc8c9b39723a 58 ERROR_CHECKSUM,
jwhammel 84:fc8c9b39723a 59 ERROR_NO_PATIENCE
jwhammel 84:fc8c9b39723a 60 };
jwhammel 84:fc8c9b39723a 61
jwhammel 84:fc8c9b39723a 62 typedef enum eScale eScale;
jwhammel 84:fc8c9b39723a 63 enum eScale {
jwhammel 84:fc8c9b39723a 64 CELCIUS = 0,
jwhammel 84:fc8c9b39723a 65 FARENHEIT,
jwhammel 84:fc8c9b39723a 66 KELVIN
jwhammel 84:fc8c9b39723a 67 };
jwhammel 84:fc8c9b39723a 68
jwhammel 84:fc8c9b39723a 69
jwhammel 84:fc8c9b39723a 70 class DHT
jwhammel 84:fc8c9b39723a 71 {
jwhammel 84:fc8c9b39723a 72
jwhammel 84:fc8c9b39723a 73 public:
jwhammel 84:fc8c9b39723a 74
jwhammel 84:fc8c9b39723a 75 DHT(PinName pin, eType DHTtype);
jwhammel 84:fc8c9b39723a 76 ~DHT();
jwhammel 84:fc8c9b39723a 77 eError readData(void);
jwhammel 84:fc8c9b39723a 78 float ReadHumidity(void);
jwhammel 84:fc8c9b39723a 79 float ReadTemperature(eScale const Scale);
jwhammel 84:fc8c9b39723a 80 float CalcdewPoint(float const celsius, float const humidity);
jwhammel 84:fc8c9b39723a 81 float CalcdewPointFast(float const celsius, float const humidity);
jwhammel 84:fc8c9b39723a 82
jwhammel 84:fc8c9b39723a 83 private:
jwhammel 84:fc8c9b39723a 84 time_t _lastReadTime;
jwhammel 84:fc8c9b39723a 85 float _lastTemperature;
jwhammel 84:fc8c9b39723a 86 float _lastHumidity;
jwhammel 84:fc8c9b39723a 87 PinName _pin;
jwhammel 84:fc8c9b39723a 88 bool _firsttime;
jwhammel 84:fc8c9b39723a 89 eType _DHTtype;
jwhammel 84:fc8c9b39723a 90 uint8_t DHT_data[5];
jwhammel 84:fc8c9b39723a 91 float CalcTemperature();
jwhammel 84:fc8c9b39723a 92 float CalcHumidity();
jwhammel 84:fc8c9b39723a 93 float ConvertCelciustoFarenheit(float const);
jwhammel 84:fc8c9b39723a 94 float ConvertCelciustoKelvin(float const);
jwhammel 84:fc8c9b39723a 95 eError stall(DigitalInOut &io, int const level, int const max_time);
jwhammel 84:fc8c9b39723a 96
jwhammel 84:fc8c9b39723a 97 };
jwhammel 84:fc8c9b39723a 98
jwhammel 84:fc8c9b39723a 99 #endif
jwhammel 84:fc8c9b39723a 100