Exiting a function on a key press.

Projects Programming
7

PaulS,

Thanks very much.

I had nearly got what you said in your post. But with minor variations.

It is sort of re-assuring that I had come up with similar to what you suggested at the same time.

Mine is slightly different, but I think I will change it to how you said as it is better.

This is the block of code now:

void DISPLAY_TIME(int time)
{
  int d1;
  int d2;
  
  {
    d2 = time % 10;
    d1 = int(time/10);
  }

  digitalWrite(D1_Select,HIGH);
  display_number(d1);

  digitalWrite(D2_Select,HIGH);
  display_number(d2);

  if (time = 0)
  {
    //  Turn off the display.
    digitalWrite(D1_Select,LOW);
    digitalWrite(D2_Select,LOW);
  }
  return;  //  Needed?
}
//==================================================================
int display_number(int digit)
{
  if (digit == 0)
  {
    digitalWrite(Di1,LOW);
    digitalWrite(Di2,LOW);
    digitalWrite(Di3,LOW);
    digitalWrite(Di4,LOW);
  }
  if (digit == 1)
  {
    digitalWrite(Di1,HIGH);

Right?

Oh, is that return needed?

Boguz,
Yes, I have a Canon 550d.
I have just got and installed Magic Lantern. Kind of overwhelming.
You may want to look at Trigger Trap too. I am waiting for their new version. (NOT the App.)
This is a kind of "in between" thing for me which is camera independent.

I'll PM you soon with some of the piccies.