PAW_Sensor: This library control the PAW sensor. This library get sensor values from the PAW sensor, and send these values to PC through serial-communication. And you need to convert these values to delta h using some module on PC. I create sample python module for this library. If you want to get this module, please access below page, https://github.com/HiroakiMatsuda/PAW-Sensor The PAW Sensor is developed by RT. If you need to get information about this sensors, please access below page. http://www.rt-shop.jp/index.php?main_page=product_info&cPath=42&products_id=1303
Dependents: PAW_Sensor_HelloWorld
paw.cpp
- Committer:
- matsu
- Date:
- 2014-11-09
- Revision:
- 0:ebd7c54059ae
- Child:
- 1:6ec3794072de
File content as of revision 0:ebd7c54059ae:
/* mbed PAW_Sensor Library * * paw.cpp * * Copyright (c) 2014 Hiroaki Matsuda * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. */ #include "paw.h" PAW::PAW( PinName led_1, PinName led_2, PinName photo_1, PinName photo_2 ): _led_1( led_1 ), _led_2( led_2 ), _photo_1( photo_1 ), _photo_2( photo_2 ){ _led_1 = 0; _led_2 = 0; _state = STATE_1; } unsigned char PAW::process_paw() { switch( _state ) { case STATE_1: _value.initial_photo_1 = _photo_1.read_u16(); _value.initial_photo_2 = _photo_2.read_u16(); _led_1 = 1; _state = STATE_2; break; case STATE_2: _value.ch_3 = ( _photo_1.read_u16() - _value.initial_photo_1 ) >> 4; _value.ch_4 = ( _photo_2.read_u16() - _value.initial_photo_2 ) >> 4; _led_1 = 0; _state = STATE_3; break; case STATE_3: _value.initial_photo_1 = _photo_1.read_u16(); _value.initial_photo_2 = _photo_2.read_u16(); _led_2 = 1; _state = STATE_4; break; case STATE_4: _value.ch_2 = ( _photo_1.read_u16() - _value.initial_photo_2 ) >> 4; _value.ch_1 = ( _photo_2.read_u16() - _value.initial_photo_1 ) >> 4; _led_2 = 0; _state = STATE_1; break; } return _state; } paw_value PAW::get_value() { return _value; } bool PAW::get_state() { return _state; } void PAW::print( Serial* pc ) { pc->printf("%c%c%c%c%c%c%c%c%c%c", 0xFA, 0xAF, _value.ch_1 & 0x00FF, ( _value.ch_1 & 0xFF00 ) >> 8, _value.ch_2 & 0x00FF, ( _value.ch_2 & 0xFF00 ) >> 8, _value.ch_3 & 0x00FF, ( _value.ch_3 & 0xFF00 ) >> 8, _value.ch_4 & 0x00FF, ( _value.ch_4 & 0xFF00 ) >> 8); }