43 lines
965 B
C++
43 lines
965 B
C++
/*
|
|
Morse.cpp - Library for flashing Morse code.
|
|
Created by David A. Mellis, November 2, 2007.
|
|
Released into the public domain.
|
|
*/
|
|
|
|
#include "Arduino.h"
|
|
#include "input_4051.h"
|
|
|
|
const int tolerance = 4;
|
|
|
|
input_4051::input_4051(int analogPin, int s0Pin, int s1Pin, int s2Pin, void (*valueChangeCallback(int,int)))
|
|
{
|
|
_analog = analogPin;
|
|
_s0 = s0Pin;
|
|
_s1 = s1Pin;
|
|
_s2 = s2Pin;
|
|
pinMode(_analog,INPUT);
|
|
pinMode(_s0,OUTPUT);
|
|
pinMode(_s1,OUTPUT);
|
|
pinMode(_s2,OUTPUT);
|
|
_valueChangeCallback = valueChangeCallback;
|
|
_value = {-1,-1,-1,-1,-1,-1,-1,-1};
|
|
}
|
|
|
|
void input_4051::loop()
|
|
{
|
|
for (count=0; count<=7; count++) {
|
|
r0 = bitRead(count,0);
|
|
r1 = bitRead(count,1);
|
|
r2 = bitRead(count,2);
|
|
digitalWrite(_s0, r0);
|
|
digitalWrite(_s1, r1);
|
|
digitalWrite(_s2, r2);
|
|
int read = analogRead(_analog);
|
|
if (value[count] < read - tolerance || value[count] > read + tolerance) {
|
|
value[count] = read;
|
|
_valueChangeCallback(count, read);
|
|
}
|
|
}
|
|
}
|
|
|