Zufallsgenerator (Würfel)

Bild des fertigen Shields

http://www.erik-bartmann.de/images/programmierung/arduino2/projektkapitel9/wuerfelshield004.jpg

 

 

Code:

int FIRSTLED=6;

int pattern[6][7]={
  {0,0,0,1,0,0,0}, //1
  {0,1,0,0,0,1,0}, //2
  {1,0,0,1,0,0,1}, //3
  {1,1,0,0,0,1,1}, //4
  {1,1,0,1,0,1,1}, //5
  {1,1,1,0,1,1,1} //6
};

void setup() {
  int i;
  for (i=FIRSTLED;i<=FIRSTLED+6;++i)
    pinMode(i,OUTPUT);
    
  pinMode(2,INPUT);
}


void ShowNumber(int num)
{
  int i;
  for (i=0;i<=6;++i)
    digitalWrite(i+FIRSTLED,pattern[num][i]?HIGH:LOW);
}

void loop(){
  int i,j;
  unsigned randomnumber;
  
  digitalWrite(6,HIGH);
  digitalWrite(7,HIGH);
  digitalWrite(8,HIGH);
  digitalWrite(9,HIGH);
  digitalWrite(10,HIGH);
  digitalWrite(11,HIGH);
  digitalWrite(12,HIGH);

  delay(200);
  
  do {
    i=(millis()/200)%6;
    ShowNumber(i);
  } while (digitalRead(2)==LOW);
  
  while(1){  
    randomnumber=0;
    do {
      ++randomnumber;
      i=(millis()/70)%7;
      for (j=0;j<=6;++j)
        digitalWrite(j+FIRSTLED,j==i?HIGH:LOW);
    } while (digitalRead(2)==HIGH);
    
    randomnumber=randomnumber%6;
    ShowNumber(randomnumber);
    while (digitalRead(2)==LOW) {};
  }

}

 

 

Material zum Nachbauen:

- Shield

- 7 LED's

- 8 Widerstände

- Schalter

- Arduino