Arduino Challenge 2: Multi-LED (Make Your Own Challenge)

Challenge Name: Multi LED

Author: Christina He

Credit: New Innovators.ca Lab 2

Time to Complete: Appro. 30 min

Difficulty Level: Level 3

Challenge Description: Make 5 LEDs to light up in orders: 1, 2, 3, 4, 5. And then light off in orders:                                         5, 4, 3, 2, 1. Then repeat.

Hint: Use for loop to count up and down.

Answer:

Code:

int ledPins[] = {1,2,3,4,5};
void setup()
{
  for(int x=0; x<6;x++)
  {
  pinMode(ledPins[x],OUTPUT);
  }
}
void loop()
{
  int delaytime = 100;
  for(int x=0; x<6; x++)
  {
    digitalWrite (ledPins [x], HIGH);
    delay(delaytime);
  }
  for(int x=5; x>=0; x--)
  {
    digitalWrite (ledPins [x], LOW);
    delay(delaytime);
  }
}

Visual Answer: