DHT11_TempResource.h

00001 /**
00002  * @file    DhtTempResource.h
00003  * @brief   mbed CoAP Endpoint
00004  * @author  Michael Koster
00005  * @version 1.0
00006  * @see
00007  *
00008  * Copyright (c) 2015
00009  *
00010  * Licensed under the Apache License, Version 2.0 (the "License");
00011  * you may not use this file except in compliance with the License.
00012  * You may obtain a copy of the License at
00013  *
00014  *     http://www.apache.org/licenses/LICENSE-2.0
00015  *
00016  * Unless required by applicable law or agreed to in writing, software
00017  * distributed under the License is distributed on an "AS IS" BASIS,
00018  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
00019  * See the License for the specific language governing permissions and
00020  * limitations under the License.
00021  */
00022 
00023 #ifndef __DHT_TEMP_RESOURCE_H__
00024 #define __DHT_TEMP_RESOURCE_H__
00025 
00026 // Base class
00027 #include "DynamicResource.h"
00028 
00029 #include "DHT11.h"
00030 
00031 /** DhtTempResource class
00032  */
00033 class DhtTempResource : public DynamicResource
00034 {
00035 public:
00036     /**
00037     Default constructor
00038     @param logger input logger instance for this resource
00039     @param name input the resource name
00040     @param observable input the resource is Observable (default: FALSE)
00041     */
00042     DhtTempResource(const Logger *logger,const char *name,const bool observable = false) : 
00043         DynamicResource(logger,name,"urn:X-ipso:temperature", SN_GRS_GET_ALLOWED,observable) {
00044     }
00045 
00046     /**
00047     Get the value of the Temperature Sensor
00048     @returns string containing the temperature value in Fahrenheit
00049     */
00050     virtual string get() {
00051         char temp_str[6];
00052         memset(temp_str,0,6);
00053         float temp_f = DHT_sensor.ReadTemperature(FARENHEIT);
00054         sprintf(temp_str,"%5.2f", temp_f);
00055         return string(temp_str);
00056     }
00057 };
00058 
00059 #endif // __DHT_TEMP_RESOURCE_H__