Arduino kod v0.1

wyswietlacz.ino

#include <LiquidCrystal.h>

int tab[4]={1,6,9,0},value=0,previousvalue=1;
int led = 13,novalue=1,zero=0;
//31 34 35 42 ++++++++++
// 32 33 36 - 41 -------
// the setup routine runs once when you press reset:
void setup() {                
  // initialize the digital pin as an output.
  Serial.begin(9600); 
  pinMode(led, OUTPUT);
  int w=31;
  for(;w<=42;w++)
    pinMode(w, OUTPUT);
}
void modulo(int number)
{
  int i=3,j=0;
  novalue=1;
  if(number < 0) number=0;
  else if(number > 0) novalue=0;
  for(;i>=0;i--)
  {
    tab[i]=number%10;
    number/=10;
  }
  for(i=0;i<4;i++){
   if(tab[i]!=0) break;
   else tab[i]=10;
  }
}
void _high()
{
  int w=31;
  for(;w<=42;w++)
    digitalWrite(w,HIGH);
}
void _display()
{
  static int   numbers[10][11]={{0,1,1,0,0,1,1,1,0,1,0}, //0
                                {0,0,0,0,0,1,0,0,0,1,0}, //1
                                {0,1,0,0,0,1,1,1,0,0,1}, //2
                                {0,1,0,0,0,1,0,1,0,1,1}, //3
                                {0,0,1,0,0,1,0,0,0,1,1}, //4
                                {0,1,1,0,0,0,0,1,0,1,1}, //5
                                {0,1,1,0,0,0,1,1,0,1,1}, //6
                                {0,1,0,0,0,1,0,0,0,1,0}, //7
                                {0,1,1,0,0,1,1,1,0,1,1}, //8
                                {0,1,1,0,0,1,0,1,0,1,1}  //9
                                };
  static int characters[2][11]={{0,1,1,0,0,0,1,1,0,0,1}, //E
                                {0,0,0,0,0,0,1,0,0,0,1} //r
                                };
  static int segment_pins[4]={31,34,35,42};
  int time = 1,i=0,j=1;
  if(novalue==1)
  {
    _high();
    digitalWrite(31,LOW);
    for(;i<=10;i++)
      if(characters[0][i] == 1) digitalWrite(31+i,LOW);
    delay(time);
    for(;j<4;j++)
    {
       _high();
      digitalWrite(segment_pins[j],LOW);
      for(i=0;i<=10;i++)
        if(characters[1][i] == 1) digitalWrite(31+i,LOW);
      delay(time); 
    }
  }
  else
  {
     for(j=0;j<4;j++)
    {
      if(tab[j]==10) continue;
       _high();
      digitalWrite(segment_pins[j],LOW);
      for(i=0;i<=10;i++)
        if(numbers[tab[j]][i] == 1) digitalWrite(31+i,LOW);
      delay(time); 
    }
  }
    
}
// the loop routine runs over and over again forever:
void loop() {
  _high();
  if (Serial.available())
  {
    value = Serial.parseInt(); 
    Serial.println(value);
    modulo(value);
  }
  _display();
}