// constants won't change. Used here to set a pin number :
const int ledPin =  13;      // the number of the LED pin

const int switchpin = 12;
const int rpmpin = 10;

// Variables will change :
int ledState = LOW;             // ledState used to set the LED

// Generally, you shuould use "unsigned long" for variables that hold time
// The value will quickly become too large for an int to store
unsigned long previousMillis = 0;        // will store last time LED was updated

// constants won't change :
const long interval = 1000;           // interval at which to blink (milliseconds)

unsigned long m = 0;
unsigned long n = 0;

void setup() {
  // set the digital pin as output:
  pinMode(ledPin, OUTPUT);
  pinMode(switchpin,INPUT);
  pinMode(rpmpin,OUTPUT);
  digitalWrite(rpmpin,LOW);
  digitalWrite(switchpin,LOW);
  digitalWrite(ledPin,LOW);
}

const int del = 7;

void loop()
{

   digitalWrite(ledPin,HIGH);
   pinMode(switchpin,OUTPUT);
   delay(4000);

   digitalWrite(rpmpin,HIGH);
   delay(9);  //30ms = slow 15 = med 10 = fast
   digitalWrite(rpmpin,LOW);
   delay(9);
   digitalWrite(rpmpin,HIGH);
   delay(8);  //30ms = slow 15 = med 10 = fast
   digitalWrite(rpmpin,LOW);
   delay(8);
   digitalWrite(rpmpin,HIGH);
   delay(7);  //30ms = slow 15 = med 10 = fast
   digitalWrite(rpmpin,LOW);
   delay(7);
   digitalWrite(rpmpin,HIGH);
   delay(6);  //30ms = slow 15 = med 10 = fast
   digitalWrite(rpmpin,LOW);
   delay(6);
   digitalWrite(rpmpin,HIGH);
   delay(2);  //30ms = slow 15 = med 10 = fast
   digitalWrite(rpmpin,LOW);
   delay(2);

   delay(5);
   pinMode(switchpin,INPUT);

   delay(5000);
   digitalWrite(ledPin,LOW);
   delay(1000);


}