byte val = 0;
byte val2 = 0;

byte cab=0;
byte command=0;
byte dat=0;

int count=0;
int countr=0;
int N=100;

int RSSI=23;
int CTS=22;

void setup() 
{ 
  Serial.begin(9600); 
  Serial2.begin(9600); 
  pinMode(RSSI, INPUT);
  pinMode(CTS, INPUT);
  delay(100);   
} 

void loop() 
{ 
   if (Serial.available()) {
       val = Serial.read();
       if (val==0xF0)
       {
         count=1;
         cab=val;
       }
       else if (count==1)
       {
         count=2;
         command=val;
       }
       else if (count==2)
       {
         count=3;
         dat=val;
       }
    }  
    if (count==3)
       {
         count=0;
         while(digitalRead(CTS));
         Serial2.print(cab, BYTE);
         while(digitalRead(CTS));
         Serial2.print(command, BYTE);
         while(digitalRead(CTS));
         Serial2.print(dat, BYTE);
         /*while (!Serial2.available()&&countr<=N)
         {
           if (countr==N)
           {
             while(digitalRead(CTS));
             Serial2.print(cab, BYTE);
             Serial2.print(command, BYTE);
             Serial2.print(dat, BYTE);
             countr=0;
           }
           countr=countr+1;
         }
         countr=0;
         while (Serial2.available()) Serial2.flush();
         /*while (Serial2.available()&&(countr<2))
         {
           countr=countr+1;
         }
         countr=0;*/
       }
}