#include <VirtualWire.h>

const int transmit_pin = 12;
const int switch_pin = 6;

const char *lightOn = "1";
const char *lightOff = "0";

int switchState = 0;

void setup()
{
  vw_set_tx_pin(transmit_pin);
  vw_set_ptt_inverted(true); // Required for DR3100
  
  vw_setup(2000); // Bits per sec 
  
  pinMode(switch_pin, INPUT);
}

void loop()
{
  switchState = digitalRead(switch_pin);
  
  if(switchState == HIGH)
     vw_send((uint8_t *)lightOn, strlen(lightOn));
  else
    vw_send((uint8_t *)lightOff, strlen(lightOff));
  
  delay(400); 
}