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