1/*
2 * Author: Zion Orent <zorent@ics.com>
3 * Copyright (c) 2015 Intel Corporation.
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining
6 * a copy of this software and associated documentation files (the
7 * "Software"), to deal in the Software without restriction, including
8 * without limitation the rights to use, copy, modify, merge, publish,
9 * distribute, sublicense, and/or sell copies of the Software, and to
10 * permit persons to whom the Software is furnished to do so, subject to
11 * the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be
14 * included in all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
17 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
18 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
19 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
20 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
21 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
22 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
23 */
24#pragma once
25
26#include <string>
27#include <mraa/aio.h>
28
29namespace upm {
30  /**
31   * @brief INA132 Differential Amplifier Sensor library
32   * @defgroup ina132 libupm-ina132
33   * @ingroup seeed analog electric
34   */
35  /**
36   * @library ina132
37   * @sensor ina132
38   * @comname Grove Differential Amplifier
39   * @altname INA132
40   * @type electric
41   * @man seeed
42   * @con analog
43   *
44   * @brief API for the INA132 Differential Amplifier Sensor
45   *
46   * The INA132 Differential Amplifier Sensor is designed
47   * for precise differential-input amplification.
48   *
49   * This sensor was tested amplifying the signal
50   * from a Weight Sensor (Load Cell) 0-500g
51   *
52   * @image html ina132.jpg
53   * @snippet ina132.cxx Interesting
54   */
55  class INA132 {
56  public:
57    /**
58     * INA132 constructor
59     *
60     * @param pin Analog pin to use
61     */
62    INA132(int pin);
63    /**
64     * INA132 destructor
65     */
66    ~INA132();
67
68    /**
69     * Measures precise differential-input amplification from the sensor
70     *
71     * @return Precise differential-input amplification
72     */
73    float value();
74
75  private:
76    mraa_aio_context m_aio;
77  };
78}
79
80
81