Scrolling LEDS (Chasing LEDS) using Arduino Uno

1//YouTube channel: https://www.youtube.com/channel/UC5trxvQIeT6XOJKarnHC5Eg?view_as=subscriber//
2//Instagram:  https://www.instagram.com/royba71/ //
3//Project Roy Ben Avraham, Last modification  1/4/2020 //
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6int pinsCount=10;                        // declaring the  integer variable pinsCount
7int pins[] = {2,3,4,5,6,7,8,9,10,11};          //  declaring the array pins[]
8 
9void setup() {                
10  for (int  i=0; i<pinsCount; i=i+1){    // counting the variable i from 0 to 9
11    pinMode(pins[i],  OUTPUT);            // initialising the pin at index i of the array of pins as OUTPUT
12  }
13}
14 
15void loop() {
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17  for (int i=pinsCount-1; i>0; i=i-1){   //  chasing left (except the outer leds)
18    digitalWrite(pins[i], HIGH);         //  switching the LED at index i on
19    delay(35);                          // stopping  the program for 100 milliseconds
20    digitalWrite(pins[i], LOW);          //  switching the LED at index i off
21  }
22   for (int i=0; i<pinsCount; i=i+1){    // chasing right
23    digitalWrite(pins[i], HIGH);         // switching the  LED at index i on
24    delay(35);                          // stopping the program  for 100 milliseconds
25    digitalWrite(pins[i], LOW);          // switching the  LED at index i off
26  }
27}
28
29//Good luck and enjoy, Roy.
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