upm  1.6.0
Sensor/Actuator repository for libmraa (v1.9.0)
groveehr.hpp
1 /*
2  * Author: Jon Trulson <jtrulson@ics.com>
3  * Copyright (c) 2014 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 <stdint.h>
28 #include <sys/time.h>
29 #include <mraa/gpio.h>
30 
31 namespace upm {
56  class GroveEHR {
57  public:
63  GroveEHR(int pin);
67  ~GroveEHR();
74  uint32_t getMillis();
75 
80  void initClock();
81 
87  void clearBeatCounter();
88 
93  void startBeatCounter();
94 
99  void stopBeatCounter();
100 
106  uint32_t beatCounter();
107 
113  int heartRate();
114 
115  private:
120  static void beatISR(void *ctx);
121 
122  volatile uint32_t m_beatCounter;
123  struct timeval m_startTime;
124  mraa_gpio_context m_gpio;
125  };
126 }
127 
128 
API for the Grove Ear-clip Heart Rate Sensor.
Definition: groveehr.hpp:56
void clearBeatCounter()
Definition: groveehr.cxx:87
~GroveEHR()
Definition: groveehr.cxx:49
int heartRate()
Definition: groveehr.cxx:116
C++ API for the kxtj3 driver.
Definition: a110x.hpp:29
GroveEHR(int pin)
Definition: groveehr.cxx:34
uint32_t getMillis()
Definition: groveehr.cxx:59
void stopBeatCounter()
Definition: groveehr.cxx:99
void initClock()
Definition: groveehr.cxx:54
void startBeatCounter()
Definition: groveehr.cxx:92
uint32_t beatCounter()
Definition: groveehr.cxx:105