File content as of revision 0:d78518594116:

#ifndef _AVERAGE_ANALOG_H_
#define _AVERAGE_ANALOG_H_

#include "mbed.h"

class AverageAnalogIn {
public:
    AverageAnalogIn(PinName _pin, int _bufferSize=8) : m_AnalogIn(_pin), bufferSize(_bufferSize), index(0) {
        buffer = new unsigned short[bufferSize];
    }
    
    ~AverageAnalogIn() {
        delete[] buffer;
    }
    
    unsigned short read_u16() {
        buffer[index] = m_AnalogIn.read_u16();
        index++;
        if (index == bufferSize) {
            index = 0;
        }
        unsigned int sum = 0;
        for (int i = 0; i < bufferSize; i++) {
            sum += buffer[i];
        }
        return sum / bufferSize;
    }
    
    float read() {
        unsigned short value = read_u16();
        return (float)value * (1.0f / (float)0xFFFF);
    }

private:
    AnalogIn m_AnalogIn;
    int bufferSize;
    int index;
    unsigned short *buffer;
};

#endif //_AVERAGE_ANALOG_H_