TemperatureResource.h

00001 /**
00002  * @file    TemperatureResource.h
00003  * @brief   mbed CoAP Endpoint Temperature sensor resource supporting CoAP GET
00004  * @author  Doug Anson
00005  * @version 1.0
00006  * @see
00007  *
00008  * Copyright (c) 2014
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 __TEMPERATURE_RESOURCE_H__
00024 #define __TEMPERATURE_RESOURCE_H__
00025 
00026 // Base class
00027 #include "DynamicResource.h"
00028 
00029 // our Temperature sensor
00030 #include "LM75B.h"
00031 LM75B temp_sensor(D14,D15);
00032 
00033 /** TemperatureResource class
00034  */
00035 class TemperatureResource : public DynamicResource
00036 {
00037 public:
00038     /**
00039     Default constructor
00040     @param logger input logger instance for this resource
00041     @param name input the Temperature resource name
00042     @param observable input the resource is Observable (default: FALSE)
00043     */
00044     TemperatureResource(const Logger *logger,const char *name,const bool observable = false) : DynamicResource(logger,name,"Temperature",SN_GRS_GET_ALLOWED,observable) {
00045     }
00046 
00047     /**
00048     Get the value of the Temperature sensor
00049     @returns string containing the temperature sensor value
00050     */
00051     virtual string get() {
00052         char temp[7];
00053         memset(temp,0,7);
00054         sprintf(temp,"%3.2f", temp_sensor.temp());
00055         return string(temp);
00056     }
00057 };
00058 
00059 #endif // __TEMPERATURE_RESOURCE_H__