Shruti Rawool / pir-motion-sensor

PIR grove sensor that sends the sensed data to Thingspeak.com through the wifi module ESP 8266

Dependencies:   mbed

esp_attemp3/mbed/drivers/AnalogIn.h@0:3954a906acc2, 2016-12-05 (annotated)

Committer:
skrawool
Date:
Mon Dec 05 16:39:27 2016 +0000
Revision:
0:3954a906acc2
PIR grove sensor that sends the sensed data to thingspeak through the wifi module ESP 8266

Who changed what in which revision?

UserRevisionLine numberNew contents of line
skrawool 0:3954a906acc2 1 /* mbed Microcontroller Library
skrawool 0:3954a906acc2 2 * Copyright (c) 2006-2013 ARM Limited
skrawool 0:3954a906acc2 3 *
skrawool 0:3954a906acc2 4 * Licensed under the Apache License, Version 2.0 (the "License");
skrawool 0:3954a906acc2 5 * you may not use this file except in compliance with the License.
skrawool 0:3954a906acc2 6 * You may obtain a copy of the License at
skrawool 0:3954a906acc2 7 *
skrawool 0:3954a906acc2 8 * http://www.apache.org/licenses/LICENSE-2.0
skrawool 0:3954a906acc2 9 *
skrawool 0:3954a906acc2 10 * Unless required by applicable law or agreed to in writing, software
skrawool 0:3954a906acc2 11 * distributed under the License is distributed on an "AS IS" BASIS,
skrawool 0:3954a906acc2 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
skrawool 0:3954a906acc2 13 * See the License for the specific language governing permissions and
skrawool 0:3954a906acc2 14 * limitations under the License.
skrawool 0:3954a906acc2 15 */
skrawool 0:3954a906acc2 16 #ifndef MBED_ANALOGIN_H
skrawool 0:3954a906acc2 17 #define MBED_ANALOGIN_H
skrawool 0:3954a906acc2 18
skrawool 0:3954a906acc2 19 #include "platform/platform.h"
skrawool 0:3954a906acc2 20
skrawool 0:3954a906acc2 21 #if DEVICE_ANALOGIN
skrawool 0:3954a906acc2 22
skrawool 0:3954a906acc2 23 #include "hal/analogin_api.h"
skrawool 0:3954a906acc2 24 #include "platform/SingletonPtr.h"
skrawool 0:3954a906acc2 25 #include "platform/PlatformMutex.h"
skrawool 0:3954a906acc2 26
skrawool 0:3954a906acc2 27 namespace mbed {
skrawool 0:3954a906acc2 28 /** \addtogroup drivers */
skrawool 0:3954a906acc2 29 /** @{*/
skrawool 0:3954a906acc2 30
skrawool 0:3954a906acc2 31 /** An analog input, used for reading the voltage on a pin
skrawool 0:3954a906acc2 32 *
skrawool 0:3954a906acc2 33 * @Note Synchronization level: Thread safe
skrawool 0:3954a906acc2 34 *
skrawool 0:3954a906acc2 35 * Example:
skrawool 0:3954a906acc2 36 * @code
skrawool 0:3954a906acc2 37 * // Print messages when the AnalogIn is greater than 50%
skrawool 0:3954a906acc2 38 *
skrawool 0:3954a906acc2 39 * #include "mbed.h"
skrawool 0:3954a906acc2 40 *
skrawool 0:3954a906acc2 41 * AnalogIn temperature(p20);
skrawool 0:3954a906acc2 42 *
skrawool 0:3954a906acc2 43 * int main() {
skrawool 0:3954a906acc2 44 * while(1) {
skrawool 0:3954a906acc2 45 * if(temperature > 0.5) {
skrawool 0:3954a906acc2 46 * printf("Too hot! (%f)", temperature.read());
skrawool 0:3954a906acc2 47 * }
skrawool 0:3954a906acc2 48 * }
skrawool 0:3954a906acc2 49 * }
skrawool 0:3954a906acc2 50 * @endcode
skrawool 0:3954a906acc2 51 */
skrawool 0:3954a906acc2 52 class AnalogIn {
skrawool 0:3954a906acc2 53
skrawool 0:3954a906acc2 54 public:
skrawool 0:3954a906acc2 55
skrawool 0:3954a906acc2 56 /** Create an AnalogIn, connected to the specified pin
skrawool 0:3954a906acc2 57 *
skrawool 0:3954a906acc2 58 * @param pin AnalogIn pin to connect to
skrawool 0:3954a906acc2 59 * @param name (optional) A string to identify the object
skrawool 0:3954a906acc2 60 */
skrawool 0:3954a906acc2 61 AnalogIn(PinName pin) {
skrawool 0:3954a906acc2 62 lock();
skrawool 0:3954a906acc2 63 analogin_init(&_adc, pin);
skrawool 0:3954a906acc2 64 unlock();
skrawool 0:3954a906acc2 65 }
skrawool 0:3954a906acc2 66
skrawool 0:3954a906acc2 67 /** Read the input voltage, represented as a float in the range [0.0, 1.0]
skrawool 0:3954a906acc2 68 *
skrawool 0:3954a906acc2 69 * @returns A floating-point value representing the current input voltage, measured as a percentage
skrawool 0:3954a906acc2 70 */
skrawool 0:3954a906acc2 71 float read() {
skrawool 0:3954a906acc2 72 lock();
skrawool 0:3954a906acc2 73 float ret = analogin_read(&_adc);
skrawool 0:3954a906acc2 74 unlock();
skrawool 0:3954a906acc2 75 return ret;
skrawool 0:3954a906acc2 76 }
skrawool 0:3954a906acc2 77
skrawool 0:3954a906acc2 78 /** Read the input voltage, represented as an unsigned short in the range [0x0, 0xFFFF]
skrawool 0:3954a906acc2 79 *
skrawool 0:3954a906acc2 80 * @returns
skrawool 0:3954a906acc2 81 * 16-bit unsigned short representing the current input voltage, normalised to a 16-bit value
skrawool 0:3954a906acc2 82 */
skrawool 0:3954a906acc2 83 unsigned short read_u16() {
skrawool 0:3954a906acc2 84 lock();
skrawool 0:3954a906acc2 85 unsigned short ret = analogin_read_u16(&_adc);
skrawool 0:3954a906acc2 86 unlock();
skrawool 0:3954a906acc2 87 return ret;
skrawool 0:3954a906acc2 88 }
skrawool 0:3954a906acc2 89
skrawool 0:3954a906acc2 90 /** An operator shorthand for read()
skrawool 0:3954a906acc2 91 *
skrawool 0:3954a906acc2 92 * The float() operator can be used as a shorthand for read() to simplify common code sequences
skrawool 0:3954a906acc2 93 *
skrawool 0:3954a906acc2 94 * Example:
skrawool 0:3954a906acc2 95 * @code
skrawool 0:3954a906acc2 96 * float x = volume.read();
skrawool 0:3954a906acc2 97 * float x = volume;
skrawool 0:3954a906acc2 98 *
skrawool 0:3954a906acc2 99 * if(volume.read() > 0.25) { ... }
skrawool 0:3954a906acc2 100 * if(volume > 0.25) { ... }
skrawool 0:3954a906acc2 101 * @endcode
skrawool 0:3954a906acc2 102 */
skrawool 0:3954a906acc2 103 operator float() {
skrawool 0:3954a906acc2 104 // Underlying call is thread safe
skrawool 0:3954a906acc2 105 return read();
skrawool 0:3954a906acc2 106 }
skrawool 0:3954a906acc2 107
skrawool 0:3954a906acc2 108 virtual ~AnalogIn() {
skrawool 0:3954a906acc2 109 // Do nothing
skrawool 0:3954a906acc2 110 }
skrawool 0:3954a906acc2 111
skrawool 0:3954a906acc2 112 protected:
skrawool 0:3954a906acc2 113
skrawool 0:3954a906acc2 114 virtual void lock() {
skrawool 0:3954a906acc2 115 _mutex->lock();
skrawool 0:3954a906acc2 116 }
skrawool 0:3954a906acc2 117
skrawool 0:3954a906acc2 118 virtual void unlock() {
skrawool 0:3954a906acc2 119 _mutex->unlock();
skrawool 0:3954a906acc2 120 }
skrawool 0:3954a906acc2 121
skrawool 0:3954a906acc2 122 analogin_t _adc;
skrawool 0:3954a906acc2 123 static SingletonPtr<PlatformMutex> _mutex;
skrawool 0:3954a906acc2 124 };
skrawool 0:3954a906acc2 125
skrawool 0:3954a906acc2 126 } // namespace mbed
skrawool 0:3954a906acc2 127
skrawool 0:3954a906acc2 128 #endif
skrawool 0:3954a906acc2 129
skrawool 0:3954a906acc2 130 #endif
skrawool 0:3954a906acc2 131
skrawool 0:3954a906acc2 132 /** @}*/