Arduino based remote control

#include <SPIRremote.h>

SPIRrecv remote(9);

int ledpin = 3;

int irValue;

int i = 0;

void setup()

{

  remote.enableIR();

  pinMode(ledpin, OUTPUT);

}

void loop()

{

   int irValue = remote.getIRValue();

switch (irValue)

  {

    case 1:

    if(digitalRead(ledpin) == HIGH)

    {

      digitalWrite(ledpin,LOW);

    }

    else

    {

      digitalWrite(ledpin,HIGH);

    }

    break;

    }

    }

Micro pic

Using old camera lence I got this pic ...DIY

3 PIN TOP

You know why Earth pin in 3 pin top is larger than line and nutral?

Ans:
     When you plug in, Earth pin   first to connect,after that line and nutral connect, if any short circuit is in device Earth will helpful to trip.