Wifi Sheild Arduino plus keypad

Projects Programming
11

This is what I have in the setup

void setup(){
  
 
  ///////////////////     Barcode
 
  pinMode(dataPin, INPUT);                                               
  pinMode(clockPin, INPUT);                                              
  pinMode(ledPin, OUTPUT);  
  
  Serial.begin(115200); 
  mySerial.begin(9600); 
  while(!Serial){ ; }
  while(!mySerial){ ; }
  delay(500);

  ///////////////////////////////SD_Memory
  
   Serial.print("Initializing SD card...");
   if (!SD.begin(4)) { Serial.println("initialization failed!"); return; }
      Serial.println("initialization done.");
     
  ///////////////////////////////////
  
  mySerial.write("ScanBarcode:2222");
  mySerial.write(254); mySerial.write(192); 
  mySerial.write("orEnter5555:"); delay(2000); 
  
  ////////////////////////////

}