Adam Green / Mbed 2 deprecated WeatherStation

Web server based weather station using Sparkfun Weather Meters.

Dependencies:   FatFileSystem mbed WeatherMeters SDFileSystem

Anemometer.cpp@0:616601bde9fb, 2012-02-23 (annotated)

Committer:
AdamGreen
Date:
Thu Feb 23 21:38:39 2012 +0000
Revision:
0:616601bde9fb

        

        
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/* Copyright 2012 Adam Green (http://mbed.org/users/AdamGreen/)





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   Licensed under the Apache License, Version 2.0 (the "License");





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   you may not use this file except in compliance with the License.





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   You may obtain a copy of the License at





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       http://www.apache.org/licenses/LICENSE-2.0





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   Unless required by applicable law or agreed to in writing, software





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   distributed under the License is distributed on an "AS IS" BASIS,





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   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.





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   See the License for the specific language governing permissions and





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   limitations under the License.





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*/





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/* Implementation of class to interface for anemometer sensor with Sparkfun Weather Meters: 





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    http://www.sparkfun.com/products/8942





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*/





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#include <mbed.h>





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#include "Anemometer.h"





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#define REV_PER_SECOND_TO_KMPH  2.4f





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CAnemometer::CAnemometer(PinName AnemometerPin, unsigned int IgnoreTimeForDebounceInMicroSeconds)





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    : CDebouncedFallingEdgeCounter(AnemometerPin, IgnoreTimeForDebounceInMicroSeconds)





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{





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    m_CurrentWindSpeed = 0.0f;





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    ResetMaximumWindSpeed();





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    m_OneSecondTicker.attach_us<CAnemometer>(this, &CAnemometer::OneSecondTickerISR, 1000000);





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}





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void CAnemometer::ResetMaximumWindSpeed()





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{





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    m_MaximumWindSpeed = m_CurrentWindSpeed;





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}





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void CAnemometer::OneSecondTickerISR()





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{





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    unsigned int GetCurrentCount = GetCountAndZero();





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    m_CurrentWindSpeed = (float)GetCurrentCount * REV_PER_SECOND_TO_KMPH;





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    if (m_CurrentWindSpeed > m_MaximumWindSpeed)





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    {





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        m_MaximumWindSpeed = m_CurrentWindSpeed;





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    }





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}





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float CAnemometer::GetCurrentWindSpeed()





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{





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    return m_CurrentWindSpeed;





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}





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float CAnemometer::GetMaximumWindSpeed()





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{





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    return m_MaximumWindSpeed;





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}