const int LED1 = 11; // Define the pin number

const int LED2 = 12;

const int min = 500;

const int max = 4000;

long randNumber;
 

void setup() {

pinMode(LED1, OUTPUT);

pinMode(LED2, OUTPUT); // Set the pin to output mode

}

 

void loop() {

randNumber = random(min, max);

digitalWrite(LED1, HIGH);

delay(1000);

digitalWrite (LED1, LOW);

delay(randNumber);  

digitalWrite(LED2, LOW);

if ( randNumber > 2000)

{

digitalWrite(LED2, HIGH);

delay (500);

digitalWrite(LED2, LOW);

}

else {

digitalWrite(LED2, LOW);

}

 

 

}