Jeremy Hammel / Mbed 2 deprecated ATT_Smart_Home

FRDM-K64F, Avnet M14A2A, Grove Shield, to create smart home system. In use with AT&Ts M2x & Flow.

Dependencies:   mbed FXOS8700CQ MODSERIAL

mbed/AnalogIn.h@85:0cf65ceb4492, 2019-04-29 (annotated)

Committer:
jwhammel
Date:
Mon Apr 29 04:24:38 2019 +0000
Revision:
85:0cf65ceb4492
Parent:
84:fc8c9b39723a 
We have added an alarm trigger that gets sent to AT&T Flow.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
jwhammel 84:fc8c9b39723a 1 /* mbed Microcontroller Library
jwhammel 84:fc8c9b39723a 2 * Copyright (c) 2006-2013 ARM Limited
jwhammel 84:fc8c9b39723a 3 *
jwhammel 84:fc8c9b39723a 4 * Licensed under the Apache License, Version 2.0 (the "License");
jwhammel 84:fc8c9b39723a 5 * you may not use this file except in compliance with the License.
jwhammel 84:fc8c9b39723a 6 * You may obtain a copy of the License at
jwhammel 84:fc8c9b39723a 7 *
jwhammel 84:fc8c9b39723a 8 * http://www.apache.org/licenses/LICENSE-2.0
jwhammel 84:fc8c9b39723a 9 *
jwhammel 84:fc8c9b39723a 10 * Unless required by applicable law or agreed to in writing, software
jwhammel 84:fc8c9b39723a 11 * distributed under the License is distributed on an "AS IS" BASIS,
jwhammel 84:fc8c9b39723a 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
jwhammel 84:fc8c9b39723a 13 * See the License for the specific language governing permissions and
jwhammel 84:fc8c9b39723a 14 * limitations under the License.
jwhammel 84:fc8c9b39723a 15 */
jwhammel 84:fc8c9b39723a 16 #ifndef MBED_ANALOGIN_H
jwhammel 84:fc8c9b39723a 17 #define MBED_ANALOGIN_H
jwhammel 84:fc8c9b39723a 18
jwhammel 84:fc8c9b39723a 19 #include "platform.h"
jwhammel 84:fc8c9b39723a 20
jwhammel 84:fc8c9b39723a 21 #if DEVICE_ANALOGIN
jwhammel 84:fc8c9b39723a 22
jwhammel 84:fc8c9b39723a 23 #include "analogin_api.h"
jwhammel 84:fc8c9b39723a 24
jwhammel 84:fc8c9b39723a 25 namespace mbed {
jwhammel 84:fc8c9b39723a 26
jwhammel 84:fc8c9b39723a 27 /** An analog input, used for reading the voltage on a pin
jwhammel 84:fc8c9b39723a 28 *
jwhammel 84:fc8c9b39723a 29 * Example:
jwhammel 84:fc8c9b39723a 30 * @code
jwhammel 84:fc8c9b39723a 31 * // Print messages when the AnalogIn is greater than 50%
jwhammel 84:fc8c9b39723a 32 *
jwhammel 84:fc8c9b39723a 33 * #include "mbed.h"
jwhammel 84:fc8c9b39723a 34 *
jwhammel 84:fc8c9b39723a 35 * AnalogIn temperature(p20);
jwhammel 84:fc8c9b39723a 36 *
jwhammel 84:fc8c9b39723a 37 * int main() {
jwhammel 84:fc8c9b39723a 38 * while(1) {
jwhammel 84:fc8c9b39723a 39 * if(temperature > 0.5) {
jwhammel 84:fc8c9b39723a 40 * printf("Too hot! (%f)", temperature.read());
jwhammel 84:fc8c9b39723a 41 * }
jwhammel 84:fc8c9b39723a 42 * }
jwhammel 84:fc8c9b39723a 43 * }
jwhammel 84:fc8c9b39723a 44 * @endcode
jwhammel 84:fc8c9b39723a 45 */
jwhammel 84:fc8c9b39723a 46 class AnalogIn {
jwhammel 84:fc8c9b39723a 47
jwhammel 84:fc8c9b39723a 48 public:
jwhammel 84:fc8c9b39723a 49
jwhammel 84:fc8c9b39723a 50 /** Create an AnalogIn, connected to the specified pin
jwhammel 84:fc8c9b39723a 51 *
jwhammel 84:fc8c9b39723a 52 * @param pin AnalogIn pin to connect to
jwhammel 84:fc8c9b39723a 53 * @param name (optional) A string to identify the object
jwhammel 84:fc8c9b39723a 54 */
jwhammel 84:fc8c9b39723a 55 AnalogIn(PinName pin) {
jwhammel 84:fc8c9b39723a 56 analogin_init(&_adc, pin);
jwhammel 84:fc8c9b39723a 57 }
jwhammel 84:fc8c9b39723a 58
jwhammel 84:fc8c9b39723a 59 /** Read the input voltage, represented as a float in the range [0.0, 1.0]
jwhammel 84:fc8c9b39723a 60 *
jwhammel 84:fc8c9b39723a 61 * @returns A floating-point value representing the current input voltage, measured as a percentage
jwhammel 84:fc8c9b39723a 62 */
jwhammel 84:fc8c9b39723a 63 float read() {
jwhammel 84:fc8c9b39723a 64 return analogin_read(&_adc);
jwhammel 84:fc8c9b39723a 65 }
jwhammel 84:fc8c9b39723a 66
jwhammel 84:fc8c9b39723a 67 /** Read the input voltage, represented as an unsigned short in the range [0x0, 0xFFFF]
jwhammel 84:fc8c9b39723a 68 *
jwhammel 84:fc8c9b39723a 69 * @returns
jwhammel 84:fc8c9b39723a 70 * 16-bit unsigned short representing the current input voltage, normalised to a 16-bit value
jwhammel 84:fc8c9b39723a 71 */
jwhammel 84:fc8c9b39723a 72 unsigned short read_u16() {
jwhammel 84:fc8c9b39723a 73 return analogin_read_u16(&_adc);
jwhammel 84:fc8c9b39723a 74 }
jwhammel 84:fc8c9b39723a 75
jwhammel 84:fc8c9b39723a 76 #ifdef MBED_OPERATORS
jwhammel 84:fc8c9b39723a 77 /** An operator shorthand for read()
jwhammel 84:fc8c9b39723a 78 *
jwhammel 84:fc8c9b39723a 79 * The float() operator can be used as a shorthand for read() to simplify common code sequences
jwhammel 84:fc8c9b39723a 80 *
jwhammel 84:fc8c9b39723a 81 * Example:
jwhammel 84:fc8c9b39723a 82 * @code
jwhammel 84:fc8c9b39723a 83 * float x = volume.read();
jwhammel 84:fc8c9b39723a 84 * float x = volume;
jwhammel 84:fc8c9b39723a 85 *
jwhammel 84:fc8c9b39723a 86 * if(volume.read() > 0.25) { ... }
jwhammel 84:fc8c9b39723a 87 * if(volume > 0.25) { ... }
jwhammel 84:fc8c9b39723a 88 * @endcode
jwhammel 84:fc8c9b39723a 89 */
jwhammel 84:fc8c9b39723a 90 operator float() {
jwhammel 84:fc8c9b39723a 91 return read();
jwhammel 84:fc8c9b39723a 92 }
jwhammel 84:fc8c9b39723a 93 #endif
jwhammel 84:fc8c9b39723a 94
jwhammel 84:fc8c9b39723a 95 protected:
jwhammel 84:fc8c9b39723a 96 analogin_t _adc;
jwhammel 84:fc8c9b39723a 97 };
jwhammel 84:fc8c9b39723a 98
jwhammel 84:fc8c9b39723a 99 } // namespace mbed
jwhammel 84:fc8c9b39723a 100
jwhammel 84:fc8c9b39723a 101 #endif
jwhammel 84:fc8c9b39723a 102
jwhammel 84:fc8c9b39723a 103 #endif
jwhammel 84:fc8c9b39723a 104