PIR grove sensor that sends the sensed data to Thingspeak.com through the wifi module ESP 8266
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BusInOut.h
00001 /* mbed Microcontroller Library 00002 * Copyright (c) 2006-2013 ARM Limited 00003 * 00004 * Licensed under the Apache License, Version 2.0 (the "License"); 00005 * you may not use this file except in compliance with the License. 00006 * You may obtain a copy of the License at 00007 * 00008 * http://www.apache.org/licenses/LICENSE-2.0 00009 * 00010 * Unless required by applicable law or agreed to in writing, software 00011 * distributed under the License is distributed on an "AS IS" BASIS, 00012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 00013 * See the License for the specific language governing permissions and 00014 * limitations under the License. 00015 */ 00016 #ifndef MBED_BUSINOUT_H 00017 #define MBED_BUSINOUT_H 00018 00019 #include "drivers/DigitalInOut.h" 00020 #include "platform/PlatformMutex.h" 00021 00022 namespace mbed { 00023 /** \addtogroup drivers */ 00024 /** @{*/ 00025 00026 /** A digital input output bus, used for setting the state of a collection of pins 00027 * 00028 * @Note Synchronization level: Thread safe 00029 */ 00030 class BusInOut { 00031 00032 public: 00033 00034 /** Create an BusInOut, connected to the specified pins 00035 * 00036 * @param p<n> DigitalInOut pin to connect to bus bit p<n> (p5-p30, NC) 00037 * 00038 * @note 00039 * It is only required to specify as many pin variables as is required 00040 * for the bus; the rest will default to NC (not connected) 00041 */ 00042 BusInOut(PinName p0, PinName p1 = NC, PinName p2 = NC, PinName p3 = NC, 00043 PinName p4 = NC, PinName p5 = NC, PinName p6 = NC, PinName p7 = NC, 00044 PinName p8 = NC, PinName p9 = NC, PinName p10 = NC, PinName p11 = NC, 00045 PinName p12 = NC, PinName p13 = NC, PinName p14 = NC, PinName p15 = NC); 00046 00047 BusInOut(PinName pins[16]); 00048 00049 virtual ~BusInOut(); 00050 00051 /* Group: Access Methods */ 00052 00053 /** Write the value to the output bus 00054 * 00055 * @param value An integer specifying a bit to write for every corresponding DigitalInOut pin 00056 */ 00057 void write(int value); 00058 00059 /** Read the value currently output on the bus 00060 * 00061 * @returns 00062 * An integer with each bit corresponding to associated DigitalInOut pin setting 00063 */ 00064 int read(); 00065 00066 /** Set as an output 00067 */ 00068 void output(); 00069 00070 /** Set as an input 00071 */ 00072 void input(); 00073 00074 /** Set the input pin mode 00075 * 00076 * @param mode PullUp, PullDown, PullNone 00077 */ 00078 void mode(PinMode pull); 00079 00080 /** Binary mask of bus pins connected to actual pins (not NC pins) 00081 * If bus pin is in NC state make corresponding bit will be cleared (set to 0), else bit will be set to 1 00082 * 00083 * @returns 00084 * Binary mask of connected pins 00085 */ 00086 int mask() { 00087 // No lock needed since _nc_mask is not modified outside the constructor 00088 return _nc_mask; 00089 } 00090 00091 /** A shorthand for write() 00092 */ 00093 BusInOut& operator= (int v); 00094 BusInOut& operator= (BusInOut& rhs); 00095 00096 /** Access to particular bit in random-iterator fashion 00097 */ 00098 DigitalInOut& operator[] (int index); 00099 00100 /** A shorthand for read() 00101 */ 00102 operator int(); 00103 00104 protected: 00105 virtual void lock(); 00106 virtual void unlock(); 00107 DigitalInOut* _pin[16]; 00108 00109 /** Mask of bus's NC pins 00110 * If bit[n] is set to 1 - pin is connected 00111 * if bit[n] is cleared - pin is not connected (NC) 00112 */ 00113 int _nc_mask; 00114 00115 PlatformMutex _mutex; 00116 00117 /* disallow copy constructor and assignment operators */ 00118 private: 00119 BusInOut(const BusInOut&); 00120 BusInOut & operator = (const BusInOut&); 00121 }; 00122 00123 } // namespace mbed 00124 00125 #endif 00126 00127 /** @}*/
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