Ring of LEDs: Issues with lighting up 7 LEDs

[biomedstudent]

Hi!
I'm making a ring of 7 LEDs that turns on all the LEDs at the same time and turns them off 45min. I haven't used Arduino in more than 2 years, so I was reading the project book to guide myself on how to do this. However, when I upload my code, the LEDs are not even turning on. This is the code that I'm using.

int led1 = 6;
int led2 = 7;
int led3 = 8;
int led4 = 9;
int led5 = 10;
int led6 = 11;
int led7 = 12;

void setup()
{
  pinMode(led1, INPUT);
  pinMode(led2, INPUT);
  pinMode(led3, INPUT);
  pinMode(led4, INPUT);
  pinMode(led5, INPUT);
  pinMode(led6, INPUT);
  pinMode(led7, INPUT);
}

void loop()
{
  digitalWrite(led1, HIGH);
  digitalWrite(led2, HIGH);
  digitalWrite(led3, HIGH);
  digitalWrite(led4, HIGH);
  digitalWrite(led5, HIGH);
  digitalWrite(led6, HIGH);
  digitalWrite(led7, HIGH);;
    delay(2700000000);
    digitalWrite(led1, LOW);
    digitalWrite(led2, LOW);
    digitalWrite(led3, LOW);
    digitalWrite(led4, LOW);
    digitalWrite(led5, LOW);
    digitalWrite(led6, LOW);
    digitalWrite(led7, LOW);
  } 

IMG_5798|476x500
I'm attaching a photo of how my breadboard looks like. Additionally, I'm doing this on an Arduino Uno board. Can anyone help me to figure out what's wrong with this?
Thanks in advance!

[ruilviana]

@biomedstudent

 pinMode(led1, INPUT);
  pinMode(led2, INPUT);
  pinMode(led3, INPUT);
  pinMode(led4, INPUT);
  pinMode(led5, INPUT);
  pinMode(led6, INPUT);
  pinMode(led7, INPUT);

Change all INPUT to OUTPUT.

delay(2700000000); uau Immensely great value. =~31 days.
try delay(1000);

RV mineirin

[biomedstudent]

Thank you so much. This worked perfectly!!

[vaj4088]

delay(...) expects a parameter in milliseconds but the number that you supplied was in microseconds. 2700000 would have been 45 x 60 x 1000 milliseconds (in C/C++ this would be 45L601000).

[vaj4088]

Unfortunately, my answer was changed by the forum. The part in parentheses should be

45L * 60 * 1000