ViertelKurve.ino


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float p;

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//int p;

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int m;

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int n;

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int plot;

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int val;

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int l;

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//Sinussignal

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signed char S[400]=

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{0,0,1,1,2,2,2,3,3,3,4,4,5,5,5,6,6,7,7,7,8,8,9,9,9,10,10,10,11,11,12,12,12,13,13,14,14,14,15,15,15,16,16,17,17,17,18,

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18,19,19,19,20,20,20,21,21,22,22,22,23,23,23,24,24,25,25,25,26,26,26,27,27,28,28,28,29,29,29,30,30,31,31,31,32,32,32,

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33,33,34,34,34,35,35,35,36,36,36,37,37,38,38,38,39,39,39,40,40,40,41,41,41,42,42,43,43,43,44,44,44,45,45,45,46,46,46,

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47,47,47,48,48,48,49,49,49,50,50,50,51,51,51,52,52,52,53,53,53,54,54,54,55,55,55,56,56,56,57,57,57,58,58,58,59,59,59,

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59,60,60,60,61,61,61,62,62,62,63,63,63,63,64,64,64,65,65,65,65,66,66,66,67,67,67,67,68,68,68,69,69,69,69,70,70,70,71,

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71,71,71,72,72,72,72,73,73,73,73,74,74,74,75,75,75,75,76,76,76,76,77,77,77,77,78,78,78,78,78,79,79,79,79,80,80,80,80,

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81,81,81,81,81,82,82,82,82,83,83,83,83,83,84,84,84,84,84,85,85,85,85,85,86,86,86,86,86,87,87,87,87,87,87,88,88,88,88,

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88,89,89,89,89,89,89,90,90,90,90,90,90,91,91,91,91,91,91,91,92,92,92,92,92,92,92,93,93,93,93,93,93,93,94,94,94,94,94,

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94,94,94,95,95,95,95,95,95,95,95,95,95,96,96,96,96,96,96,96,96,96,96,97,97,97,97,97,97,97,97,97,97,97,97,97,98,98,98,

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98,98,98,98,98,98,98,98,98,98,98,98,98,98,98,98,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,

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99,99};

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//Dreiecksignal

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int D[16]={0,137,275,412,550,412,275,137,0,-137,-275,-412,-550,-412,-275,-137};

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//int D[8]={0,275,550,275,0,-275,-550,-275}; //10kHz

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void setup(){

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pinMode(5,OUTPUT);

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pinMode(6,OUTPUT);

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pinMode(A0,INPUT);

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//Timer1 instalisieren

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TCCR1A = 0;                     //Register definiert zurücksetzten

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TCCR1B = 0;                     //zuerst Register definiert zurücksetzen

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TCNT1 = 0;                      //Zählerwert zurücksetzten

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OCR1A = 199;                    //Timer1 80kHZ einstellen

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TCCR1B |= (1 << WGM12);         //CTC mode

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//TCCR1B |= (0 << CS12) | (0 << CS11) | (1 >> CS10); //kein Prescale

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TCCR1B |= (1 << CS10);          // clk/1 prescale 1024

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TIMSK1 |= (1 << OCIE1A);        //Aktivieren des Timer-Vergleichs-Interrupt

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}

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ISR(TIMER1_COMPA_vect){         //Interrupt

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//Signalvergleich Sinus Positiv

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if(l<800) {

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  if (D[n] < val*S[m]) {          //Dreiecksignal kleiner als Sinussignal

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  bitSet(PORTC, 6);               //Pin 5 HIGH

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  }

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  else {                          //Dreiecksignal größer als Sinussignal

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  bitClear(PORTC, 6);             //Pin 5 LOW

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  }

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  if (D[n] < val*S[m]) {          //Dreiecksignal kleiner als Sinussignal

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  bitSet(PORTD, 7);               //Pin 6 HIGH

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  }

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  else {                          //Dreiecksignal größer als Sinussignal

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  bitClear(PORTD, 7);             //Pin 6 LOW

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  }

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}

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//Signalvergleich Sinus Negativ

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if(l>800) {

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  if (D[n] < val*-S[m]) {          //Dreiecksignal kleiner als Sinussignal

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  bitSet(PORTC, 6);               //Pin 5 HIGH

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  }

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  else {                          //Dreiecksignal größer als Sinussignal

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  bitClear(PORTC, 6);             //Pin 5 LOW

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  }

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  if (D[n] < val*-S[m]) {          //Dreiecksignal kleiner als Sinussignal

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  bitSet(PORTD, 7);               //Pin 6 HIGH

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  }

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  else {                          //Dreiecksignal größer als Sinussignal

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  bitClear(PORTD, 7);             //Pin 6 LOW

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  }

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}

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//Sinusarray hochrechnen

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l=l+1;

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if(l<400){

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m=m+1;

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}

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if(l>400 && l<800){

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m=m-1;

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}

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if(l>800 && l<1200){

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m=m+1;

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}

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if(l>1200 && l<1600){

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m=m-1;

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}

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if(l>1599){

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l=0;

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m=0;

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}

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//Dreieckarray hochrechnen

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n=n+1;

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if(n>15)

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n=0;

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}

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void loop() {

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p = analogRead(A0);             //Potiwert 0 bis 10kΩ einlesemn

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plot = map(p, 0, +500, 1, 5);   //Potiwert in 0 bis 500 in 1 bis 5 wandeln

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//

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delay(300);

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val=plot;                       //Werte von 1 bis 5

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}