Luis Bernal / Mbed 2 deprecated xbeat-hoppel-code

Xbeat beta code as published by Andre Moehl ( http://mbed.org/users/hoppel/ ) With a slightly modified serial port definition

Dependencies:   mbed

SRF05.h@0:badcd0d61c7b, 2011-02-04 (annotated)

Committer:
n0p
Date:
Fri Feb 04 08:31:00 2011 +0000
Revision:
0:badcd0d61c7b

        

        
Who changed what in which revision?

        

            
                
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/* mbed SRF05 Ultrasonic Rangefiner Library





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 * Copyright (c) 2007-2010, cstyles, sford





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 *





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 * Permission is hereby granted, free of charge, to any person obtaining a copy





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 * of this software and associated documentation files (the "Software"), to deal





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 * in the Software without restriction, including without limitation the rights





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 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell





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 * copies of the Software, and to permit persons to whom the Software is





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 * furnished to do so, subject to the following conditions:





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 *





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 * The above copyright notice and this permission notice shall be included in





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 * all copies or substantial portions of the Software.





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 *





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 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR





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 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,





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 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE





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 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER





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 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,





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 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN





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 * THE SOFTWARE.





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 */





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#ifndef MBED_SRF05_H





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#define MBED_SRF05_H





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#include "mbed.h"





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/** Library for the SRF05 Ultrasonic range finder





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 *





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 * Example:





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 * @code





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 * // Print measured distance





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 *





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 * #include "mbed.h"





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 * #include "SRF05.h"





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 *





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 * SRF05 srf(p9,p10);





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 *





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 * int main() {





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 *     while(1) {





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 *         printf("Measured : %.1f\n", srf.read());





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 *         wait(0.2);





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 *     }





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 * }





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 * @endcode





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 */





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class SRF05 {





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public:





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    /** Create a SRF05 object, connected to the specified pins





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     *





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     * @param trigger DigitalOut to the SRF05 trigger





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     * @param echo InterruptIn to measure the return pulse





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     */





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    SRF05(PinName trigger, PinName echo);





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    /** A non-blocking function that will return the last measurement





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     *





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     * @returns floating point representation of distance in cm





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     */





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    float read();





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    /** A short hand way of using the read function */





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    operator float();





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private :





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    DigitalOut _trigger;





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    InterruptIn _echo;





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    Timer _timer;





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    Ticker _ticker;





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    void _rising (void);





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    void _falling (void);





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    void _startRange (void);





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    float _dist;





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};





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#endif