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Dependencies:   BSP_DISCO_F746NG Graphics mbed

HardwareAccess/Angle.cpp

Committer:
karpent
Date:
2016-11-06
Revision:
0:8acbce46eede
Child:
1:4a5e329e617b

File content as of revision 0:8acbce46eede:

//
//  Angle.cpp
//

#include "mbed.h"   // for AnalogIn
#include "Angle.h"

#ifdef ARDUINO
int anglePin = 0;
#else
AnalogIn angleRead(A0);
#endif

Angle::Angle()
{
    angle = 0;
    direction = Left;
    delta = 1.0f;
}

float Angle::GetAngle()
{
    if(direction == Left) {
        angle += delta;
        if(angle > FULL_ANGLE) {
            angle -= FULL_ANGLE;
        }
    } else { // Right
        angle -= delta;
        if(angle < 0) {
            angle += FULL_ANGLE;
        }
    }
    return angle;
}

/// Read the rotation angle from a potentiometer attached to pin A0
float Angle::ReadAngle()
{
#ifdef ARDUINO
    angle = analogRead(anglePin);
#else
    angle = angleRead;
#endif

    return angle/1024.f * FULL_ANGLE;
}