| long distanza=0;
long tempo=0; const float c=0.017; char y=’0′;
void setup() { for(int i=7; i<=13; i++){ pinMode(i, OUTPUT); }
pinMode(6, OUTPUT); //trig pinMode(5, INPUT); //echo
Serial.begin(9600); }
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void loop()
{ digitalWrite(6, LOW); digitalWrite(6, HIGH); delayMicroseconds(10); digitalWrite(6, LOW); tempo=pulseIn(5, HIGH); distanza=tempo*c;
if(distanza<50){ if(y!=’0′){ y=’0′; Serial.println(“0-49”); } } if(distanza>=50 && distanza<100){ if(y!=’1′){ y=’1′; Serial.println(“50-99”); } }
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| if(distanza>=100 && distanza<150){
if(y!=’2′){ y=’2′; Serial.println(“100-149”); } } if(distanza>=150 && distanza<200){ if(y!=’3′){ y=’3′; Serial.println(“150-199”); } } if(distanza>=200 && distanza<250){ if(y!=’4′){ y=’4′; Serial.println(“200-249”); } } if(distanza>=250 && distanza<300){ if(y!=’5′){ y=’5′; Serial.println(“250-299”); } } if(distanza>=300){ if(y!=’6′){ y=’6′; Serial.println(“300+”); } } number(y); }
void number(char num) { char x=num; switch(x) { case ‘0’: digitalWrite(7, HIGH); digitalWrite(8, HIGH); digitalWrite(9, HIGH); digitalWrite(10, HIGH); digitalWrite(11, HIGH); digitalWrite(12, HIGH); digitalWrite(13, LOW); break;
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case ‘1’:
digitalWrite(7, HIGH); digitalWrite(8, LOW); digitalWrite(9, LOW); digitalWrite(10, HIGH); digitalWrite(11, LOW); digitalWrite(12, LOW); digitalWrite(13, LOW); break;
case ‘2’: digitalWrite(7, LOW); digitalWrite(8, HIGH); digitalWrite(9, HIGH); digitalWrite(10, HIGH); digitalWrite(11, HIGH); digitalWrite(12, LOW); digitalWrite(13, HIGH); break;
case ‘3’: digitalWrite(7, HIGH); digitalWrite(8, HIGH); digitalWrite(9, LOW); digitalWrite(10, HIGH); digitalWrite(11, HIGH); digitalWrite(12, LOW); digitalWrite(13, HIGH); break;
case ‘4’: digitalWrite(7, HIGH); digitalWrite(8, LOW); digitalWrite(9, LOW); digitalWrite(10, HIGH); digitalWrite(11, LOW); digitalWrite(12, HIGH); digitalWrite(13, HIGH); break;
case ‘5’: digitalWrite(7, HIGH); digitalWrite(8, HIGH); digitalWrite(9, LOW); digitalWrite(10, LOW); digitalWrite(11, HIGH); digitalWrite(12, HIGH); digitalWrite(13, HIGH); break;
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case ‘6’:
digitalWrite(7, HIGH); digitalWrite(8, HIGH); digitalWrite(9, HIGH); digitalWrite(10, LOW); digitalWrite(11, HIGH); digitalWrite(12, HIGH); digitalWrite(13, HIGH); break;
case ‘7’: digitalWrite(7, HIGH); digitalWrite(8, LOW); digitalWrite(9, LOW); digitalWrite(10, HIGH); digitalWrite(11, HIGH); digitalWrite(12, LOW); digitalWrite(13, LOW); break;
case ‘8’: digitalWrite(7, HIGH); digitalWrite(8, HIGH); digitalWrite(9, HIGH); digitalWrite(10, HIGH); digitalWrite(11, HIGH); digitalWrite(12, HIGH); digitalWrite(13, HIGH); break;
case ‘9’: digitalWrite(7, HIGH); digitalWrite(8, HIGH); digitalWrite(9, LOW); digitalWrite(10, HIGH); digitalWrite(11, HIGH); digitalWrite(12, HIGH); digitalWrite(13, HIGH); break; } } |