writePotValue-to-7seg

/*
   29.01.2019
   Written by: Gabby Shimoni
   Description:
   This program write the modulo of the potentiometer value by 10 to 7 segment
*/

int num_array[10][7] = {  { 1, 1, 1, 1, 1, 1, 0 }, // 0
  { 0, 1, 1, 0, 0, 0, 0 }, // 1
  { 1, 1, 0, 1, 1, 0, 1 }, // 2
  { 1, 1, 1, 1, 0, 0, 1 }, // 3
  { 0, 1, 1, 0, 0, 1, 1 }, // 4
  { 1, 0, 1, 1, 0, 1, 1 }, // 5
  { 1, 0, 1, 1, 1, 1, 1 }, // 6
  { 1, 1, 1, 0, 0, 0, 0 }, // 7
  { 1, 1, 1, 1, 1, 1, 1 }, // 8
  { 1, 1, 1, 0, 0, 1, 1 }
};   // 9

//function header
void Num_Write(int);

#define potPin A0;
int potValue = 0;
void setup()
{
  // set pin modes
  for (int k = 2; k < 9; k++)  pinMode(k, OUTPUT);
}

void loop()
{
  potValue = analogRead(potPin);
  potValue = potValue % 10;
  Num_Write(potValue);
  delay(1000);
}

// this functions writes values to the sev seg pins
void Num_Write(int number)
{
  int pin = 2;
  for (int j = 0; j < 7; j++) {
    digitalWrite(pin, num_array[number][j]);
    pin++;
  }
}