upm  1.6.0
Sensor/Actuator repository for libmraa (v1.9.0)
mhz16.hpp
1 /*
2  * Author: Jon Trulson <jtrulson@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 <iostream>
28 
29 #include <stdint.h>
30 #include <stdlib.h>
31 #include <unistd.h>
32 #include <string.h>
33 #include <fcntl.h>
34 #include <errno.h>
35 #include <termios.h>
36 #include <sys/time.h>
37 #include <sys/select.h>
38 #include <sys/types.h>
39 #include <sys/stat.h>
40 
41 #include <mraa/uart.h>
42 
43 namespace upm {
70  class MHZ16 {
71  public:
72 
73 
79  MHZ16(int uart);
80 
86  MHZ16(const std::string& uart_raw = "/dev/ttyS0");
87 
91  virtual ~MHZ16();
92 
99  bool dataAvailable(unsigned int millis);
100 
111  int readData(char *buffer, int len);
112 
120  int writeData(char *buffer, int len);
121 
129  bool setupTty(speed_t baud=B9600);
130 
137  bool verifyPacket(uint8_t *pkt, int len);
138 
146  bool getData();
147 
153  int getGas();
154 
160  int getTemperature();
161 
166  void calibrateZeroPoint();
167 
168  protected:
169  int ttyFd() { return m_ttyFd; };
170 
171  private:
172  mraa_uart_context m_uart;
173  int m_ttyFd = 0;
174  int gas = 0;
175  int temp = 0;
176  };
177 }
178 
179 
API support for the Grove CO2 sensor.
Definition: mhz16.hpp:70
MHZ16(int uart)
Definition: mhz16.cxx:36
bool verifyPacket(uint8_t *pkt, int len)
Definition: mhz16.cxx:196
int writeData(char *buffer, int len)
Definition: mhz16.cxx:145
int getGas()
Definition: mhz16.cxx:242
void calibrateZeroPoint()
Definition: mhz16.cxx:252
C++ API for the kxtj3 driver.
Definition: a110x.hpp:29
virtual ~MHZ16()
Definition: mhz16.cxx:94
int getTemperature()
Definition: mhz16.cxx:247
bool dataAvailable(unsigned int millis)
Definition: mhz16.cxx:102
bool getData()
Definition: mhz16.cxx:207
bool setupTty(speed_t baud=B9600)
Definition: mhz16.cxx:167
int readData(char *buffer, int len)
Definition: mhz16.cxx:125