#include <VirtualWire.h>

void setup()
{
  Serial.begin(9600);     // Debugging only
  Serial.println("Wpisz cos: ");
  // Initialise the IO and ISR
  vw_set_ptt_inverted(true); // Required for DR3100
  vw_setup(2000);    // Bits per sec
}

void loop()
{
  char TestData;

  if(Serial.available() )
  {
    TestData = Serial.read();
    Serial.print (TestData);  // echo the incoming character to the LCD

    const char *msg = TestData;

    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
    digitalWrite(13, false);
    delay(200);
  }
}