RF 2 ways communicatoin

hello new here
please me 2 ways communication.i use 2 arduino , pair rf , push button , leds. for  1 ways communication 2 way have problems.i hope can me

here coding
transmitter
 //----------------------transmitter--------------------//
#include <virtualwire.h>

int button_gate = 3;

int button_gate_read = 0;
//----------------------receiver-------------------------//
#include <virtualwire.h>

void setup() {
//--------------------transmitter-------------------------//
 serial.begin(9600);

  pinmode(button_gate, input);

  vw_setup(2000);
  vw_set_tx_pin(6);
  //-----------------------receiver------------------------//
  pinmode(13,output);
  digitalwrite(13,low);
 
  vw_setup(2000);
  vw_set_rx_pin(7);
  vw_rx_start();

}

void loop() {
  // put main code here, run repeatedly:
   //------------------------receiver----------------------//
  uint8_t buflen = vw_max_message_len;
  uint8_t buf[buflen];
 
  if(vw_get_message(buf, &buflen))
  {
    for(int = 0;i < buflen;i++)
    {
      if(buf == 'on_01')
      {
        digitalwrite(13,high);
      }
      else if(buf == 'off_01')
      {
        digitalwrite(13,low);
      }
    }
  }
//--------------------------trasnmitter------------------//
 char on_1[100] = {'on_2'};
  char off_1[100] = {'off_2'};
 
  button_gate_read = digitalread(button_gate);

  if (button_gate_read == high)
  {
   
    vw_send((uint8_t *)on_1, 100);
  }
  else if (button_gate_read == low)
  {
   
    vw_send((uint8_t *)off_1, 100);
  }
 
}


receiver
//----------------------transmitter--------------------//
#include <virtualwire.h>

int button_gate = 3;

int button_gate_read = 0;
//----------------------receiver-------------------------//
#include <virtualwire.h>

void setup() {
//--------------------transmitter-------------------------//
 serial.begin(9600);

  pinmode(button_gate, input);

  vw_setup(2000);
  vw_set_tx_pin(6);
  //-----------------------receiver------------------------//
  pinmode(13,output);
  digitalwrite(13,low);
 
  vw_setup(2000);
  vw_set_rx_pin(7);
  vw_rx_start();

}

void loop() {
  // put main code here, run repeatedly:
//--------------------------trasnmitter------------------//
 char on_2[100] = {'on_01'};
  char off_2[100] = {'off_01'};
 
  button_gate_read = digitalread(button_gate);

  if (button_gate_read == high)
  {
   
    vw_send((uint8_t *)on_2, 100);
  }
  else if (button_gate_read == low)
  {
   
    vw_send((uint8_t *)off_2, 100);
  }
  //------------------------receiver----------------------//
  uint8_t buflen = vw_max_message_len;
  uint8_t buf[buflen];
 
  if(vw_get_message(buf, &buflen))
  {
    for(int = 0;i < buflen;i++)
    {
      if(buf == 'on_02')
      {
        digitalwrite(13,high);
      }
      else if(buf == 'on_02')
      {
        digitalwrite(13,low);
      }
    }
  }
}

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Arduino Forum > Using Arduino > Networking, Protocols, and Devices (Moderator: fabioc84) > RF 2 ways communicatoin

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