Rpi-hw  0.7.2
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hcsr04-inl.hpp
1 /*
2  Title --- sensor/hcsr04-inl.hpp
3 
4  Copyright (C) 2013 Giacomo Trudu - wicker25[at]gmail[dot]com
5 
6  This file is part of Rpi-hw.
7 
8  Rpi-hw is free software: you can redistribute it and/or modify
9  it under the terms of the GNU Lesser General Public License as published by
10  the Free Software Foundation version 3 of the License.
11 
12  Rpi-hw is distributed in the hope that it will be useful,
13  but WITHOUT ANY WARRANTY; without even the implied warranty of
14  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15  GNU Lesser General Public License for more details.
16 
17  You should have received a copy of the GNU Lesser General Public License
18  along with Rpi-hw. If not, see <http://www.gnu.org/licenses/>.
19 */
20 
21 
22 #ifndef _RPI_HW_SENSOR_HCSR04_INL_HPP_
23 #define _RPI_HW_SENSOR_HCSR04_INL_HPP_
24 
25 namespace rpihw { // Begin main namespace
26 
27 namespace sensor { // Begin sensors namespace
28 
29 inline double
31 
32  // Return the distance from the sensor to an object or surface
33  return timing() * 17;
34 }
35 
36 } // End of sensors namespace
37 
38 } // End of main namespace
39 
40 #endif /* _RPI_HW_SENSOR_HCSR04_INL_HPP_ */
double ranging()
Returns the distance from the sensor to an object or surface.
Definition: hcsr04-inl.hpp:30
double timing()
Returns the elapsed time between sending and receiving back the pulse.