how to use for loop into this program

Projects Programming
1

I just make four pins to active HIGH
I simplified my code as below

//my script
void setup() {
 

}

void loop() {
 
 digitalWrite(2,HIGH);
 digitalWrite(5,HIGH);
  digitalWrite(6,HIGH);
   digitalWrite( 12,HIGH);
  
}

but I want to use for loop to simply it, and try to modified as below

byte digitPins[] =  {2, 5, 6, 12};
  
void setup() {
}

void loop() {
 for (int j=0;j<4;j++)
 digitalWrite(digitPins[j],HIGH);
}

<-- although it is no grammatical error on coding, but behavior is not my desire.

Can some one point me or give some advice for me? thx...

2

but behavior is not my desire.

You forgot to pinMode the pins as outputs.

What is your desire, and what's the actual behaviour?

3

thank you for prompt reply.
I also modified my code. does it workable?

byte digitPins[] =  {2, 5, A1, A2};
  
void setup() {
  for (int j=0;sizeof(digitPins);j++)
  pinMode(digitPins[j], OUTPUT);
}

void loop() {
 for (int j=0;sizeof(digitPins);j++)
 digitalWrite(digitPins[j],HIGH);
}
4

cools0607:
does it workable?

Beats me :wink:

Does it compile?

If so, is its behaviour to your liking?

5

for (int j=0;sizeof(digitPins);j++)Oops