LightResource.h

00001 /**
00002  * @file    LightResource.h
00003  * @brief   mbed CoAP Endpoint Light resource supporting CoAP GET and PUT
00004  * @author  Doug Anson, Michael Koster
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 __LIGHT_RESOURCE_H__
00024 #define __LIGHT_RESOURCE_H__
00025 
00026 
00027 // Base class
00028 #include "DynamicResource.h"
00029 
00030 // our Light
00031 #include "ChainableLED.h"
00032 #define LED_COUNT 1
00033 
00034 ChainableLED led_chain(D3, D4, LED_COUNT);
00035 
00036 static char * led_value = {"00000"}; //RRGGBB
00037 
00038 void set_led_array(char * color_string)
00039 {
00040     int color_int;
00041 
00042     sscanf(color_string, "%X", &color_int);
00043     
00044     led_chain.setColorRGB(0, (color_int >> 16 & 255), (color_int >> 8 & 255), (color_int & 255) );    
00045 }
00046 
00047 /** LightResource class
00048  */
00049 class LightResource : public DynamicResource
00050 {
00051 
00052 public:
00053     /**
00054     Default constructor
00055     @param logger input logger instance for this resource
00056     @param name input the Light resource name
00057     @param observable input the resource is Observable (default: FALSE)
00058     */
00059     LightResource(const Logger *logger,const char *name,const bool observable = false) : DynamicResource(logger,name,"Light",SN_GRS_GET_ALLOWED|SN_GRS_PUT_ALLOWED,observable) {
00060     set_led_array("000000");
00061     wait(0.5);
00062     set_led_array("FF0000");
00063     wait(0.5);
00064     set_led_array("00FF00");
00065     wait(0.5);
00066     set_led_array("0000FF");
00067     wait(0.5);
00068     set_led_array(led_value);
00069     }
00070 
00071     /**
00072     Get the value of the Light
00073     @returns string containing either "0" (light off) or "1" (light on)
00074     */
00075     virtual string get() {
00076         return(led_value);
00077     }
00078 
00079     /**
00080     Set the value of the Light
00081     @param string input the string containing "0" (light off) or "1" (light on)
00082     */
00083     virtual void put(const string value) {
00084         if( sizeof(value) == sizeof(led_value) ){
00085             led_value = (char *)value.c_str();
00086             set_led_array(led_value);
00087         }
00088     }
00089 };
00090 
00091 #endif // __LIGHT_RESOURCE_H__