0

My code is:

if ((minute == 31) && (hour == 4, 6, 9, 11)) 
{
  digitalWrite(8, HIGH);
}

I want to turn on the LEDs when it is exactly

  • 04:31,
  • 06:31,
  • 09:31,
  • 11:31

However, the code above doesn't work.
Might be the multiple values the reason for this?

2 Answers 2

1

Yes, the list of values 4, 6, 9, 11 does not mean what you think it does.

if ((minute == 31) &&  ((hour == 4) || (hour == 6) || (hour == 9) || (hour == 11))) {
    digitalWrite(8, HIGH);
}
0
-1

Optionally, you could store the values in an array and go across all of them with some code like this:

int hours = [4,6,9,11];

function isInArray(inputValue, array) {
    boolean isIn = false;

    for ( int i = 0; I < array.length; i++) {
        // "isIn |= statement" is shorthand for "isIn = (isIn || statement)"
        isIn |= (array[I] == inputValue);
    }

    return isIn;
}

if (isInArray(variable, hours)) {
    //do whatever
}

//might be able to do
if (isInArray(variable, [4,6,9,11])) {
    //do whatever
}
1
  • 1
    Some language may allow you to write that, but not C++, which is the standard language for Arduino. Commented Feb 10, 2017 at 21:14

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Start asking to get answers

Find the answer to your question by asking.

Ask question

Explore related questions

See similar questions with these tags.