Crowtail- 315Mhz RF Receiver with Transmitter

// receiver.pde
/*
static uint8_t vw_rx_pin = 11;

// The digital IO pin number of the transmitter data
static uint8_t vw_tx_pin = 12;
*/
#include <VirtualWire.h>
#undef int
#undef abs
#undef double
#undef float
#undef round
void setup()
{
    Serial.begin(9600); // Debugging only
    Serial.println("setup");

    // Initialise the IO and ISR
    vw_set_ptt_inverted(true); // Required for DR3100
    vw_setup(2000);  // Bits per sec

    vw_rx_start();       // Start the receiver PLL running
}

void loop()
{
    uint8_t buf[VW_MAX_MESSAGE_LEN];
    uint8_t buflen = VW_MAX_MESSAGE_LEN;

    if (vw_get_message(buf, &buflen)) // Non-blocking
    {
    int i;

        digitalWrite(13, true); // Flash a light to show received good message
    // Message with a good checksum received, dump it.
    Serial.print("Got: ");

    for (i = 0; i < buflen; i++)
    {
        Serial.print(char(buf[i]));
        Serial.print(" ");
    }
    Serial.println("");
        digitalWrite(13, false);
    }
}

// transmitter.pde
/*
static uint8_t vw_rx_pin = 11;

// The digital IO pin number of the transmitter data
static uint8_t vw_tx_pin = 12;
*/
#include <VirtualWire.h>
#undef int
#undef abs
#undef double
#undef float
#undef round
void setup()
{
    Serial.begin(9600);   // Debugging only
    Serial.println("setup");

    // Initialise the IO and ISR
    vw_set_ptt_inverted(true); // Required for DR3100
    vw_setup(2000);  // Bits per sec
}

void loop()
{
    const char *msg = "hello";

    digitalWrite(13, true); // Flash a light to show transmitting
    vw_send((uint8_t *)msg, strlen(msg));
    vw_wait_tx(); // Wait until the whole message is gone
    Serial.println("hello");
    digitalWrite(13, false);
    delay(200);
}