Arduino

#include <SoftwareSerial.h>
#define rxPin 8
#define txPin 9
byte val;
SoftwareSerial RF_CAVU3_T = SoftwareSerial(rxPin,txPin);
void setup()  {
  RF_CAVU3_T.begin(9600);
  Serial.begin(9600);
 }

void loop() {
  byte number;
  while(RF_CAVU3_T.available()==0);
   Serial.print("number = ");
   number= readByte();
  Serial.println(number);
  }