ButtonPress.h

ButtonPress.h

#ifndef ButtonPress
#define ButtonPress

#include <avr/io.h>

char ButtonPressed(int buttonNumber, unsigned char pinOfButton, unsigned char portBit, int confidenceLevel);

char Pressed[2];
int Pressed_Confidence_Level[2]; //Measure button press cofidence
int Released_Confidence_Level[2]; //Measure button release confidence

char ButtonPressed(int buttonNumber, unsigned char pinOfButton, unsigned char portBit, int confidenceLevel)
{
if (bit_is_clear(pinOfButton, portBit))
{
Pressed_Confidence_Level[buttonNumber] ++; //Increase Pressed Conficence
Released_Confidence_Level[buttonNumber] = 0; //Reset released button confidence since there is a button press
if (Pressed_Confidence_Level[buttonNumber] > confidenceLevel) //Indicator of good button press
{
if (Pressed[buttonNumber] == 0)
{
Pressed[buttonNumber] = 1;
return 1;
}
//Zero it so a new pressed condition can be evaluated
Pressed_Confidence_Level[buttonNumber] = 0;
}
}
else
{
Released_Confidence_Level[buttonNumber] ++; //This works just like the pressed
Pressed_Confidence_Level[buttonNumber] = 0; //Reset pressed button confidence since the button is released
if (Released_Confidence_Level[buttonNumber] > confidenceLevel)
{
Pressed[buttonNumber] = 0;
Released_Confidence_Level[buttonNumber] = 0;
}
}
return 0;
}

#endif