RDCM-802 Compass Module
RDCM802.cpp
- Committer:
- tosihisa
- Date:
- 2010-08-06
- Revision:
- 2:f472eda658ec
- Parent:
- 0:def4240d9105
- Child:
- 3:95ffff059a20
File content as of revision 2:f472eda658ec:
/** * @section LICENSE * * This source code is "zlib" license. * Of course, this is not a part of the zlib software. * The license is zlib license. * * Copyright (C) 2010 tosihisa <tosihisa@netfort.gr.jp> * * This software is provided 'as-is', without any express or implied * warranty. In no event will the authors be held liable for any damages * arising from the use of this software. * * Permission is granted to anyone to use this software for any purpose, * including commercial applications, and to alter it and redistribute it * freely, subject to the following restrictions: * * 1. The origin of this software must not be misrepresented; you must not * claim that you wrote the original software. If you use this software * in a product, an acknowledgment in the product documentation would be * appreciated but is not required. * 2. Altered source versions must be plainly marked as such, and must not be * misrepresented as being the original software. * 3. This notice may not be removed or altered from any source distribution. * * @section DESCRIPTION * */ #include "mbed.h" #include "RDCM802.h" RDCM802::RDCM802( PinName d0, PinName d1 ,PinName d2 ) : _d0(d0) , _d1(d1) , _d2(d2) { } int RDCM802::read() { int retval = 0; retval = (_d2 != 0) ? 0x04 : 0; retval |= (_d1 != 0) ? 0x02 : 0; retval |= (_d0 != 0) ? 0x01 : 0; return retval; } char *RDCM802::toString() { char *retval[8] = { "S ","SW","NE","N ","SE","W ","E ","NW" }; return retval[read()]; }