Yeongsoo Kim / Mbed 2 deprecated Mecha_Speed_control

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Dependencies:   mbed

Sensor/HallSensor.cpp

Committer:
yeongsookim
Date:
2019-11-06
Revision:
0:c88a81d07287
Child:
1:d7a26e14bc4d

File content as of revision 0:c88a81d07287:

#include "HallSensor.h"
#define RPM 23400.0
#define MIN 60.0
#define SEC_PERIOD (1.0 / (RPM*2 / MIN ))

HallSensor::HallSensor (PinName a) : m_hallSensor (a,PullUp)
{
    float fDummy_sec = 1000.0;
    m_hallSensor.rise (callback (this, &HallSensor::risingCallback));
    m_period_sec = fDummy_sec;
    m_timer_sec.start ();
}

float HallSensor::getSpeed_rps ()
{
    float fSpeed_rps;
    
    if (m_timer_sec.read () > 0.1 || m_period_sec > 0.1) {
        fSpeed_rps = 0.0f;
    } else {
        fSpeed_rps = 2.0f*PI/m_period_sec;
    }
    return fSpeed_rps;
}

void HallSensor::risingCallback()
{
    if(m_timer_sec.read() > SEC_PERIOD) {
        m_period_sec = m_timer_sec.read();
        m_timer_sec.reset();
    }
}

int HallSensor::getPinState ()
{
    return m_hallSensor;
}