Transmitter Receiver Issue

Other Hardware Home Automation
1

Hi all,

We have bought a pair of transmitter Receiver.When I use them with no library I can receive some numbers of 0 and 400 roughly.However when I am using virtualWire library,my transmiter is fine but receiver only prints "setup" and nothing else.I have tried different libraries however the receiver issue is not resolved.I reallllly appreciate some help.
Follow I post our code.I should mention our final intention is to send and receive some simple signals like"A","B",...

Transmitter:

#include <VirtualWire.h>

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_set_tx_pin(7);
}

void loop()
{
const char *msg = "hello";
Serial.println("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
digitalWrite(13, false);
delay(200);
}

Receiver:

#include <VirtualWire.h>
#define rfReceivePin A0

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(buf*, HEX);*

  • Serial.print(" ");*
  • }*
  • Serial.println("");*
  • digitalWrite(13, false);*
  • }*
    }