Problem with module rf receiver 315mh T4

Projects Networking, Protocols, and Devices
1

I tried module rf 315 to send and receive data but it's not working so how can I use module rf receiver 315mh T4 to receive data from module rf transmitter 315 data? thank you so much!

This is my code
Transmitter:

#include <VirtualWire.h> 

void setup()
{
  Serial.begin(9600);
  Serial.println("Ready.........");
  vw_set_ptt_inverted(true);
  vw_setup(1024);
  vw_set_tx_pin(10);
  Serial.write("skdf");
}

void loop()
{
  char text[20] = "";// khai báo string d?ng array
  byte i = 0;
  while (Serial.available() == 0)
  {
    // nothing
  }
  while (Serial.available() > 0)
  {
    char ch = Serial.read();
    text[i] = ch;
    i++;
    delay(5);
  }
  Serial.print("sent: ");
  Serial.println(text);
  vw_send((byte *)text, sizeof(text));
  vw_wait_tx();
  delay(100);
}

And receiver:

#include <VirtualWire.h>

byte msg[VW_MAX_MESSAGE_LEN];
byte msgLen = VW_MAX_MESSAGE_LEN;

void setup()
{
  Serial.begin(9600);
  Serial.println("READY..........");
  vw_setup(1024); 
  vw_set_rx_pin(5);
  vw_rx_start();
}

void loop()
{
  if (vw_get_message(msg, &msgLen))
  {
    Serial.print("got: ");
    for (int i = 0; i < msgLen; i++)
    {
      Serial.write(msg[i]);
    }
    Serial.println();
  }
}
2

Take a step back - write a couple of simple sketches that just toggle the Tx at 1 or 2Hz, and see if you can receive that.

3

By the way, Can I use this instead of to receive data ?

4

What are you trying to do?
The picture you have shown looks like a receiver and a decoder , so it doesnt need , and wont work with virtualwire.

5

I apologize because I have inserted the wrong link :(, I was fixed

6

What does the transmitter module look like?

7 
  vw_set_ptt_inverted(true);

Very few radios actually need this.

      Serial.write(msg[i]);

Why are you using write()? You should be print()ing the data.