NEED HELP WITH QUESTION 3:

my code:

//initialize delay between light changes

int timer = 100;

void setup()

{

//use a for loop to initialize each pin as an output

for(int thisPin = 2; thisPin

{

pinMode(thisPin, OUTPUT);

Serial.begin(9600);

Serial.println(thisPin);

}

}

void loop()

{

//loop from the lowest pin to the highest

for(int thisPin = 2; thisPin

{

if(thisPin % 2 == 0) //If the pin is even

digitalWrite(thisPin, HIGH);

delay(timer); // Wait for 1000 millisecond(s)

digitalWrite(thisPin, LOW);

}

//loop from the highest pin to the lowest

for(int thisPin=7; thisPin>=2; thisPin--)

{

if(thisPin % 2 == 1) //If the pin is odd

//turn the pin on

digitalWrite(thisPin, HIGH);

delay(timer);

//turn the pin off

digitalWrite(thisPin, LOW);

}

}

1. Use serial communication to display which pin is lit in the serial monitor. (adjust the timer to change how fast the LED's change to 1 second) Initialize serial event using: Serial.begin(9600); Display in the serial monitor: Serial.println(thisPin); 2. Modify the code so that only the odd pins are lit on the way down, and only even pins are lit on the way up. 7 6 5 4 3 2 7 6 5 4 3 2 3. Modify the code so that the LED's turn on and off in an arbitrary order using an array. Initialize the array using: int ledPins () (2, 7, 4, 6, 5, 3); Turn on the LED's as follows: digitalWrito (ledPins(thispin), HIGH)